All New 2007 GMC Yukon and Yukon Denali

2007 GMC Yukon Denali

Refined, Efficient and Powerful

October 5, 2005 5:05 AM
Filed Under: American, GMC

Press Release

 

Refined, Efficient and Powerful

GMC unveiled the all-new 2007 Yukon and Yukon Denali full-size SUVs Oct. 5. They are based on GM's all-new full-size SUV family, which features distinctive styling, spacious and refined interiors, exceptional driving characteristics and enhanced safety features.

The new Yukon family is distinguished with sleek, expressive styling that announces a new look for GMC vehicles - styling that conveys GMC's professional grade qualities and a distinct design from other GM vehicles. The vehicles offer more power and better fuel economy than the vehicles they replace, enhancing GMC's "more than expected" reputation.

"The all-new 2007 Yukon and Yukon Denali bring GMC's professional grade philosophy to a new level - we're aiming to provide customers more than they expect in all respects," said John Larson, GMC general manager. "Yukon Denali is our flagship and delivers the performance and features of a luxury SUV, along with the full capability demanded in a full-size truck."

Yukon and Yukon Denali are available early in the first quarter of 2006. Yukon is available in SLE (cloth trim) and SLT trim (leather appointments), as well as 2WD and 4WD configurations. Yukon Denali is a distinct model, with differentiated, exclusive features that elevate its performance and style to an unprecedented level - including an exclusive 6.2L all-aluminum small-block V-8 engine with variable valve timing and a new six-speed automatic transmission.

Distinctive design

Yukon and Yukon Denali have a sleeker, taut form. Wraparound front and rear fascias, styled mirrors and integrated running boards provide a seamless, contemporary appearance. Craftsmanship is found in elements such as tight tolerances between exterior components and a tuned, wheels-to-the-corners proportion. The wheels are aligned on the same plane as the outer edges of the fenders, giving the vehicle a confident, broad-shouldered stance.

The toned look on all models is created with faster windshield angle of 57 degrees, which flows gracefully into the roofline. This also improves aerodynamic performance to a segment-best 0.363 cd, which helps improve fuel economy and reduce wind noise.

Jewel-look lighting elements, wraparound fascias and doors that extend over the rockers accent the vehicles' precise and refined design elements. The headlamps are larger, using bright halogen bulbs that deliver improved lighting spread. Rear-end styling also is distinct, with unique treatments above the beltline and around the glass, including taillamps and integrated license plate pockets.

Yukon Denali is distinguished with exterior appointments that take its exclusive appearance to a higher, more differentiated level. In addition to its iconic chrome grille, the '07 Yukon Denali also features enhanced exterior bright work, unique and premium-look headlamps, taillamps and rear fascia treatment, as well as unique 18-inch standard wheels - 20-inch wheels are available. The headlamps and taillamps further the jeweled look of Yukon models with detailed lighting elements and clear lenses - with etched GMC logos on the headlamp bezels - that provide a crystalline appearance and distinctive lighting patterns.

All models offer features such as articulated running boards (available mid-year) and a power liftgate. Vehicles not equipped with the power liftgate feature an easy-to-operate liftgate that is specially designed with a micro-switch that assists the operator by using the mass of the tailgate to almost open or close itself once the liftgate is past the halfway-open position. An ergonomically designed, recessed cup with pull handle makes closing the liftgate an easy, one-handed operation.

 

Spacious, refined interior

Interior space is roomier - including increased cargo capacity - and has a spacious, luxurious environment, thanks to a premium two-tone color scheme and a lower-positioned instrument panel. New thinner, sculpted seat designs and detailed trim affirm Yukon 's craftsmanship, which is bolstered by amenities such as heated seats for first- and second-row passengers. Also, the front seats offer more fore/aft and recline travel, and the second-row seats have an increased seatback recline angle for added comfort.

The two-tone interior appearance contributes to the vehicles' aura of a roomy, luxury sedan. The upscale styling is complemented by new, softer and low-gloss materials for the instrument panel and other trim pieces. The harmonious color and grain of the materials was carefully selected to provide a premium feel as well as durability. Flush-mounted controls and radios, with almost imperceptible gaps, convey precision and integration. Chrome accents are used on instrument surrounds, vents and other trim.

Craftsmanship also is revealed in unexpected areas: distinctive sill plates with no visible hardware greet occupants when the doors are opened and there are no exposed fasteners or hardware on the pillars, seats or seat tracks. The seats have "close-outs" that surround the seat bottoms and seat tracks, creating a more finished appearance. Fasteners and hardware are covered, too, when the seats are folded.

As with the exterior, Yukon Denali is distinguished with exclusive, premium features, including luxurious nuance leather seating surfaces, unique center console, enhanced interior bright work and detailed, highly finished embossed sill plates that greet passengers when they open any of the Yukon Denali's doors. The unique center console has wood trim that conceals the lid and cupholder pockets, creating a more finished and refined appearance.

The Yukon family also offers a new, industry-exclusive power fold-and-tumble second-row seat feature that eases access to the third-row seat. The power fold-and-tumble second-row seats feature release buttons accessible by the driver or on the interior C-pillar to provide an easy, immediate release of the seat to create an access path to the third-row seat or cargo area.

Tri-Zone climate control is standard on all models. Automatic climate control is standard on Yukon Denali and Yukon SLT; it is available on Yukon SLE. A remote start feature, standard on SLT/Denali models and available on SLE, allows the climate system to heat or cool the vehicle's interior. An enhanced array of audio, infotainment and safety options also is available and includes an available touch-screen navigation system, as well as a DVD system with larger flip-down screen.

There is more space inside the SUVs, as well. More fore/aft front seat travel provides the segment's leading legroom for front-seat passengers. Second-row seat legroom and knee room, and third-row seat headroom are increased over the previous models. The second- and third-row seats also have more shoulder room - a feat accomplished while also offering available roof-mounted head curtain side air bags. Cargo room has increased 4.2 cubic feet (118.9 liters) behind the second row seats and 2.3 cubic feet (65.1 liters) behind the third row. The third-row seats fold flat and are easily tumbled forward or removed for maximum cargo area. Also, the center console storage compartment, at 20.1 liters of capacity, is the segment's largest. The glove box offers 25 percent more storage space than previous models and features damped opening operation that bolsters quietness and refinement.

 

Responsive driving experience

The '07 Yukon and Yukon Denali are built on GM's new full-size SUV platform, which incorporates features such as a new, fully boxed frame, coil-over-shock front suspension and rack-and-pinion steering. The new frame offers 49 percent increased torsional stiffness and 35 percent improvement in beaming frequency, compared to previous models. The frame supports wider front and rear tracks - approximately 3 inches (76.2 mm) wider in front and 1 inch (25.4 mm) wider in the rear - that enhance stability and driving confidence through a more secure road feel and a lower center of gravity.

The front suspension consists of an all-new coil-over-shock design that delivers linear, solid and unwavering ride and handling characteristics on all road surfaces. Also new is a rack-and-pinion steering system that provides precise and responsive control and enhanced on-center feel. A highly-refined five-link rear suspension provides superior isolation and ride, with larger, firmer brackets that also contribute to the vehicles' precise driving manners.

Larger, four-wheel disc brakes and an all-new ABS system ensure braking performance at the top of the segment. Larger vented front and rear brake rotors, 50-percent stiffer dual-piston calipers, longer-life brake pads and a new, robust tie-rod-type apply system contribute to enhanced pedal feel, reduced brake noise, predictable, linear brake response and shorter braking distances. A new, Bosch 8.0 next-generation four-channel ABS system also is standard. The ABS system works with the standard StabiliTrak electronic stability control system. In the new SUVs, StabiliTrak incorporates the first-time GM application of roll-over mitigation, software algorithm technology that uses sensors to proactively predict vehicle "tip-up" and applies appropriate brake forces to prevent such events.

Enhanced driving control and ride smoothness is offered with the available Autoride real-time damping system (standard on Yukon Denali), which uses electronically controlled shock absorbers to make nearly instantaneous damping adjustments. The system "reads" the road and anticipates the best damping rates.

Seventeen-inch wheels are standard on Yukon, with 18-inch wheels standard on Yukon Denali. Twenty-inch wheels are available on Yukon and Yukon Denali. The wheels are designed with premium-appearance faces, including available chrome or polished finish. Yukon Denali wheels are exclusive. New tires are tailored to the vehicles to provide excellent balance of handling, quietness and safety.

A new Gen IV small-block V-8 family powers the Yukon family and offers more power than comparable powertrains in previous models. A 5.3L small-block V-8 is standard at start of production in Yukon and is rated at 320 horsepower (238 kw)* and 340 lb.-ft. of torque (470 Nm),* an 8 percent horsepower increase compared to the previous 5.3L engine. A Flex-Fuel E85 version, which is capable of running on E85 ethanol fuel or a mixture of E85 and gasoline, is standard on 4WD models and available on 2WD models. E85 is comprised of 85 percent ethanol, which is a renewable resource fuel produced in the United States. A 4.8L V-8 engine, rated at 290 horsepower (216 kw)* will become the standard engine of Yukon 2WD models later in the '06 model year.

The 5.3L engine's Displacement On Demand technology enables better fuel economy. When combined with other vehicle-wide features, including improved aerodynamics, the small-block V-8 helps provide the segment's best fuel economy. The 6.2L engine of the Yukon Denali is all-new, with advanced technologies and lightweight materials - including variable valve timing and an aluminum cylinder block - contributing to the vehicle's uncompromising performance. It produces 380 horsepower (283 kw)* and 415 lb.-ft. of torque (564 Nm).*

The engines are backed by proven Hydra-Matic electronically controlled automatic transmissions, including a new 6L80 six-speed that is matched with the 6.2L engine.

The six-speed automatic has a wide, 6.04:1 overall ratio - including two overdrive gears - that helps deliver an excellent balance of performance and fuel economy. Also, the 6L80 has a "tap up/tap down" capability that allows the driver to manually select upshifts and downshifts with a button on the column shifter.

Safety and security

As with all vehicles built on GM's new full-size SUV platform, the '07 Yukon family features a 360-degree safety system designed around the pillars of occupant protection, driver control and personal safety.

New features, including exclusive safety belt pretensioners linked to sensors for rear-end crashes, are integrated into a stronger vehicle structure that is also designed for improved compatibility with other vehicles helping Yukon protect those inside and outside of the vehicle before, during and after a crash. The exclusive rear pretensioner sensors can trigger the front seat pretensioners during a rear-end collision, holding the occupants firmly in place and helping to prevent whiplash injuries

Also, new roof-mounted head curtain air bags with tethers are available for all seating rows (standard on Yukon Denali). The roof-mounted air bags' tether system keeps the bags in place longer to further protect and contain occupants. The bags stay inflated for several seconds longer to provide optimum protection in the case of a rollover or crash with secondary impacts. Sensors located at the front and rear of the vehicles, as well as the side doors provide increased and more immediate crash detection.

The myriad of crash sensors are complemented by increased roll-over detection from the standard StabiliTrak stability control system with new rollover mitigation technology. The electronically controlled system continuously measures the side angle of the vehicle and, if a rollover appears imminent, it can deploy the side-curtain air bags before the crash occurs. The 360 degrees of detection capability allows the electronically controlled safety systems to deploy in a greater variety of situations.

Crash avoidance is bolstered through enhanced driver control dynamics, driven by the standard StabiliTrak stability control system. It is supported by dynamics such as wider front and rear tracks, as well as more responsive suspensions. The vehicles' stronger and stiffer, fully-boxed frame is designed for improved crash energy management. The front frame section, for example, has improved crush dynamics that provides the equivalent of 17.7 inches (450 mm) of additional crush space in vehicles that are only approximately 3 inches (76.2 mm) longer than their predecessors. The frame also is designed for improved vehicle-to-vehicle compatibility in the event of a frontal impact with a smaller vehicle.

Additional safety and security features include:

All models come with the Generation 6 OnStar system (with a one-year Safe and Sound service plan), which provides the personal protection component of Yukon 's safety pillars. The system includes the General Motors Advanced Automatic Crash Notification (AACN) system, making crash data available to emergency services to potentially dispatch the appropriate life-saving personnel and equipment to crash scenes faster. If the vehicle is in a crash that activates an airbag, the OnStar system automatically notifies an OnStar Advisor who will check on the occupants or summon emergency help if necessary. OnStar also can assist authorities in locating a vehicle if it is reported stolen (ability to locate stolen vehicles varies with conditions).

 

Denali details

The iconic Yukon Denali delves deeper into the luxury SUV realm with enhanced features and craftsmanship that distinguish it from other models. It is a comprehensive package of performance, amenities and style that delivers a powerful, understated elegance that is unique to GMC.

Yukon Denali remains instantly identifiable, with its Denali-specific chrome grille. In addition to the grille, the '07 model includes chrome-accented side molding, roof rack trim and other bright work treatments. Additionally, the headlamps and taillamps are unique and feature a premium, crystalline appearance and distinctive lighting patterns.

The new Yukon Denali is powered by an exclusive, 380-horsepower (283 kw) 6.2L V-8 engine, six-speed automatic transmission with tap-up/tap-down shifting and automatic all-wheel drive a powertrain not shared with any other Yukon model. Eighteen-inch polished aluminum wheels are standard and unique 20-inch factory installed chrome-finish aluminum wheels are available the wheel designs are not shared with other Yukon models.

Yukon Denali also offers a unique combination of interior style and luxury, including standard nuance leather-covered seating with heated first- and second-row seats, as well as leather trim throughout including a Denali-exclusive leather-wrapped steering wheel, which also features real wood accents and a host of auxiliary controls. Yukon Denali also is the only model in the Yukon family to offer an available heated steering wheel.

Other standard features include power liftgate, power release 2 nd row fold-and-tumble seat, roof-mounted side-curtain air bags, power-adjustable pedals, electrochromic (auto-dimming) inside mirror, RainSense automatic windshield wipers, remote start and Ultrasonic Rear Parking Assist. From an entertainment standpoint, Yukon Denali comes standard with an AM/FM MP3-capable radio with a six-disc in-dash CD changer, Bose premium nine-speaker sound system and XM Satellite Radio.

Like other Yukon models, the Yukon Denali offers several helpful and convenient options, including a navigation radio system, rear-view camera system, power sunroof, power-retractable assist steps (available mid-year) and a rear-seat, DVD-based entertainment system.

*Preliminary, pending certification. A new voluntary power and torque certification procedure developed by the SAE Engine Test Code committee was approved March 31, 2005. This procedure (J2723) ensures fair, accurate ratings for horsepower and torque by allowing manufacturers to certify their engines through third-party witness testing. GM was the first auto manufacturer to begin using the procedure and expects to use it for all newly rated engines in the future.

 

At a Glance

All-new Yukon SUV lineup:

Yukon Denali distinction:

Refined driving experience:

Spacious new interior:

Comprehensive safety and security:

New convenience and versatility:

New Yukon Chassis and Suspension

Yukon and Yukon Denali's chassis and suspension systems have been redesigned for improved ride and handling. The vehicles ride on a 116-inch (2946 mm) wheelbase and feature a fully boxed perimeter-type frame, which provides an extremely solid foundation that contributes to car-like, class-leading smoothness and ride.

The hydroformed frame has three distinct sections bays with specific strength and support characteristics. These bays allowed engineers to maximize each section without compromising other areas. Chassis stiffness is greatly enhanced throughout the frame, as well as providing enhanced performance during a crash. Torsional stiffness (side-to-side) was increased 49 percent and beaming frequency (front-to-back) was increased 35 percent over the previous model. As a result, vehicle load capacity is increased by 5 percent.

The 2007 Yukon models have wider front and rear tracks than previous-generation vehicles. The front track is 68.2 inches (1731.8 mm) vs. 65 inches (1651 mm). The rear track is 67 inches (1701.8 mm) vs. 65.98 inches (1675.8 mm). Yukon 's wider track enhances smoothness and promotes overall vehicle stability, which the driver and passenger can feel through more solid, composed and linear ride and handling characteristics, as well as flatter, more controlled cornering.

 

New coil-over-shock front suspension

A new coil-over-shock front suspension is used on all models. The coil-over configuration offers smoother, more precise handling characteristics and reduces vibration and harshness, especially with Yukon and Yukon Denali's larger wheel-and-tire combinations.

The new suspension system uses specially tuned coil springs and 46-mm monotube shock absorbers (except Autoride-equipped vehicles), along with steel upper control arms and forged aluminum lower control arms. The aluminum lower arms reduce un-sprung mass by approximately 20 pounds (9 kg).

An enhanced five-link rear suspension is used on all models. It features a more robust rear axle design that offers increased payload capacity. Like the front suspension, the rear suspension uses new, stiffer frame mounts for suspension component attachment, along with variable-rate springs and monotube shock absorbers (except when equipped with Autoride).

 

The 2007 Yukon is available with distinctly tuned suspension systems, each tuned to the model's wheel and tire combination:

Available on Yukon SLT models and standard on Yukon Denali, the Autoride suspension system is a segment-exclusive bi-state, real-time damping system that provides an extremely refined ride with greatly reduced body motion. The system consists of a semi-active, two-position damping control system that responds in real time to road and driving conditions, based on body and wheel motion sensors. There are also steering, engine torque, brake and speed sensors. Each corner features independent damping control. Autoride's air-lift/auto-leveling system includes air bags located in the shocks. An integrated air pump automatically adds air to raise and level the vehicle's ride height when carrying passengers or a heavy payload. Conversely, air is bled from the shocks when the payload is removed, returning the vehicle to a level ride height.

 

New rack-and-pinion steering system

A new hydraulic power-assisted rack-and-pinion steering system is standard on all models. It provides precise steering response with optimized on-center steering feel. Steering ratios have been optimized for easy maneuverability in tight parking situations. Noise and vibration have been substantially reduced.

 

New four-wheel disc brake system

A larger-capacity, four-wheel disc brake system with a new tie rod-type apply system and new four-channel ABS system are designed to provide the Yukon models with superior stopping capability and the segment's best braking feel. ABS is standard on all models, along with a full-function traction control system (traction control only on 2WD models).

New and improved elements of the brake system include larger-diameter front and rear disc rotors and new, stiffer brake calipers. The front rotors measure 13 inches in diameter (330.2 mm), an increase of 1 inch (25.4 mm) approximately 15 percent larger than the previous-generation design. The front rotors also are thicker with large cooling vents, providing enhanced performance and durability. The cast iron, dual-piston front brake calipers are 50 percent stiffer than before, which reduces the tendency for flexing during hard or prolonged braking. The stiffer calipers, along with dual pistons, contribute to a more direct and stronger brake pedal feel.

Rear brakes feature standard vented discs that measure 13.5 inches (342.9 mm), an increase of 0.5 inch (12.7 mm) approximately 7.5 percent over the previous-generation system. Both the front and rear brakes use new, non-asbestos brake pad linings that can deliver up to 40,000 miles of performance during normal use.

A next-generation Bosch 8.0 ABS system is standard. It has more precise valve control the requires less cycling of fluid from the brake master cylinder, resulting in reduced noise and enhanced braking feel when ABS is activated during a braking event. The new ABS system also is less complex and has reduced mass when compared with the previous system.

 

Standard StabiliTrak electronic stability control with roll-over mitigation

GM's sophisticated StabiliTrak electronic stability control system is standard on all Yukon and Yukon Denali models. Partnered with the new brake system and four-channel, four-sensor electronic brake controls, the system provides more precise, controlled ABS stops, as well as enhanced traction/yaw stability.

The Stabilitrak system has added software algorithms for the purpose of rollover mitigation. The software algorithms use Stabilitrak sensors to proactively predict vehicle "tip up" on a flat road surface, and applies brake force to the outside front and rear wheels in order to reduce lateral force in the vehicle. This brake force intervention can help reduce the likelihood of a roll-over in certain circumstances including "fish hook" maneuvers that involve sudden and rapid back-and-forth steering.

On 4WD models, StabiliTrak uses brake control to precisely control the speed of each wheel and manage torque across the front and rear axles. On 2WD models, the system precisely controls the speed at each wheel and manages side-to-side torque on the rear differential. Individual brake sensors at each wheel provide instant signals to the control module, enabling it to aggressively adjust brake pressure. However, traction is controlled by transferring torque across the rear axle rather than front and rear axles, as in 4WD models. When the vehicle is on a slippery surface, the traction system increases torque to the rear wheel that has the most traction.

On 2WD and 4WD models, the vehicle brake system provides the torque-biasing to enhance traction and engine management is used, as required, to assist in controlling traction and yaw stability. The Autotrac transfer case's control algorithm has been integrated with the StabiliTrak and ABS systems to provide enhanced vehicle stability by managing the front-to-rear torque distribution.

 

Autotrac active transfer case

Four-wheel drive models feature the Autotrac active transfer case, which helps keep the vehicle sure-footed in slippery driving conditions. When shifted to the "Auto" mode, Autotrac engages all-wheel drive traction automatically. The vehicle operates in rear-drive mode, but torque is automatically split between the front and rear wheels when the system senses all-wheel-drive traction is needed. The process is smooth, quiet and almost undetectable.

New, segment-leading pre-emptive controls allow the Autotrac system to increase the torque to the front axle on slippery roads prior to an occurrence of slippage. This can increase control because the system "anticipates" slippery conditions, not simply react to them. Autotrac also is integrated with StabiliTrak, which now uses the signal from one of Autotrac's slip-detection sensors to provide another measure of input to the stability control system. This new input allows StabiliTrak to operate more efficiently, with less interference operation.

 

Larger wheels and tires

Complementing the strong styling of the 2007 Yukon is a range of large, 17-inch standard wheels and tires on Yukon models, 18-inch standard wheels and tires on Yukon Denali and 20-inch wheels and tires available on Yukon and Yukon Denali. Some wheel-and-tire combinations are equipped with new P-metric tires that have a nylon cap ply that enhances strength and durability.

Yukon SLE and SLT models come standard with 17 x 7.5-inch bright-face aluminum wheels, with factory-installed 20 x 8.5-inch polished aluminum wheels available on SLE and SLT (20-inch wheels not available on base trim level). Yukon Denali comes with 18 x 8-inch polished aluminum wheels, with 20 x 8.5-inch chrome aluminum wheels available. The 20-inch wheels feature different styling between Yukon and Yukon Denali models, with the Yukon Denali 20-inch wheels featuring a brilliant chrome aluminum finish. All Yukon and Yukon Denali models come with a full-size spare.

New 6.2L V8 and 6-Speed Automatic Lead Powertrain Offerings

The fourth-generation of GM's legendary small-block V-8 engine is the power behind the 2007 GMC Yukon and Yukon Denali -led by the Yukon Denali's exclusive 6.2L V-8 rated at 380-horsepower (283 kw).* This all-new, all-aluminum engine uses variable valve technology to optimize performance, fuel efficiency and emissions. Performance and efficiency is enhanced by a new six-speed automatic transmission with tap up/tap down shifting.

In all Yukon models, the range of available small-block V-8s delivers more power and better fuel economy than the models they replace. In fact, with fuel saving technology, such as Displacement On Demand, and other vehicle refinements, the vehicles deliver the best fuel economy in the full-size SUV segment.

A 5.3L small-block V-8 is standard on all Yukon models -except the 2WD base Yukon -and is rated at 320 horsepower (238 kw)* and 340 lb.-ft. of torque (470 Nm),* an 8 percent horsepower increase compared to the previous 5.3L engine. A Flex-Fuel E85 version, which is capable of running on E85 ethanol fuel or a mixture of E85 and gasoline, is standard on 4WD models and available on 2WD models. E85 is comprised of 85 percent ethanol, which is a renewable resource fuel produced in the United States . A 4.8L V-8 engine, rated at 290 horsepower (216 kw)* is the standard engine of Yukon 2WD base models and will be available later in the '06 model year.

All new Vortec engines represent the fourth generation of the small-block V-8, which debuted in 1955. Highlights include:

Gen IV Vortec engines are designed to provide improved fuel economy and reduced emissions, compared to previous-generation small-block V-8s. The 5.3L engines with Displacement On Demand (DOD) technology provide up to seven percent increased fuel efficiency when measured against a comparable non-DOD 5.3L engine. DOD can temporarily shut down the combustion process of half the engine's cylinders under certain driving conditions to save fuel. GM was the first manufacturer to offer this fuel-saving technology on trucks.

A sophisticated engine controller determines when to deactivate cylinders, allowing the engine to maintain vehicle speed in lighter-load conditions such as highway cruising. The process is seamless and virtually imperceptible. When the cylinders are deactivated the engine effectively operates as a V-4. The engine returns to V-8 mode the instant the controller determines the vehicle speed or load requires additional power. The key to DOD's efficiency and virtually imperceptible operation is a set of special two-stage hydraulic valve lifters, which allows the lifters of deactivated cylinders to operate without actuating the valves.

Yukon and Yukon Denali's new Gen IV small-block engines also meet more stringent emissions standards. Compared to truck engines of a decade ago, the Gen IV Vortec engine family is approximately 90 percent cleaner. Cast iron exhaust manifolds matched with dual close-coupled catalytic converters help reduce cold-start emissions (the largest source of vehicle emissions).

 

Yukon Denali 's 6.2L engine

The 6.2L engine of the Yukon Denali is all-new, with advanced technologies and lightweight materials -including variable valve timing and an aluminum cylinder block -contributing to the vehicle's uncompromising performance. Along with its 380 horsepower (283 kw),* the engine produces 415 lb.-ft. of torque (564 Nm).*

The aluminum-block Gen-IV engine of the Yukon Denali is similar to the high-performance 6.0L LS2 V-8 found in the Pontiac GTO and Chevy Corvette, but is engineered for truck capabilities. The use of an aluminum cylinder blocks offers reduced mass, an attribute that supports improved vehicle weight distribution and slightly improved fuel economy. The block is virtually identical to the iron version, including a deep skirt design that incorporates cross-bolted main bearing caps and a structural oil pan. It also features crankcase "windows” -vents that help improve bay-to-bay breathing -which reduces pumping losses and supports the high horsepower output of the high-performance engine.

Variable valve timing (VVT) helps optimize camshaft timing to improve low-rpm torque and high-rpm horsepower. The introduction of variable valve timing through the unique dual-equal cam phaser is the industry's first application of VVT on a mass-produced V-8 overhead valve engine. The unique dual-equal phaser adjusts the camshaft timing at the same rate for both the intake and exhaust valves.

The VVT system incorporates a vane-type camshaft phaser that changes the angular orientation of the camshaft, thereby adjusting the timing of the intake and exhaust valves to optimize performance and economy, and help lower emissions. It offers infinitely variable valve timing in relation to the crankshaft. The cam phaser vane is attached to the camshaft on the front journal. As driving conditions warrant, the cam phaser system can retard ignition timing at higher rpm levels to increase power. At lower rpm levels, torque is enhanced with advanced timing.

This cam phaser feature was pioneered by GM and introduced in 2005 on the new 3.5L and 3.9L V-6 engines -a first for the use of variable valve timing on a overhead valve engine design. Precise camshaft timing is the key to the variable valve timing system's capability to optimize performance. Like the 58X ignition system, cam phasing is directed by the E38 ECM. It relies on data from a camshaft position sensor -a target ring with four equally spaced segments -that communicates the camshaft's position more quickly and accurately than previous systems that used just a single segment. Also, a leaf spring-type tensioner is used on the timing chain to reduce noise and eliminate slack.

Much of the 6.2L engine's significant power increase, compared with previous Yukon Denali engines -approximately 14 percent more horsepower -comes from high-flow aluminum cylinder heads. The heads are based on the racing-derived cylinder heads of the Corvette Z06's LS7 7.0L engine, including a unique inlet port shape and offset rocker arm design. Airflow of the heads is supported by large 55-mm-diameter intake valves and 40.4-mm-diamter exhaust valves.

 

Quiet, durable operation

All Gen IV small-block Vortec V-8 engines are designed for quieter operation, which contributes to the new vehicles' more civilized and quieter driving experience. Engine quieting features include:

Stronger engine cradles and mounting systems help reduce vibrations transmitted through the chassis that would otherwise be felt by passengers. Backing the new engines' quietness is the assurance of long-lasting performance. The new Gen IV engines were validated under extreme conditions, with dynamometer testing equivalent to 150,000 miles.

 

New 6L80 six-speed automatic

GM's new, Hydra-Matic 6L80 electronically controlled six-speed automatic transmission is matched with the Yukon Denali's 6.2L engine. Yukon 's 4.8L and 5.3L powertrains are teamed with the Hydra-Matic 4L60-E four-speed.

The 6L80's wide, 6.04:1 overall ratio, including two overdrive gears, allows for shorter steps between gears. This enables a steep, 4.02:1 first gear, which provides a very strong launch feel. The two overdrive gears include a 0.85:1 ratio in fifth gear and a 0.67:1 ratio in sixth. With two overdrive gears, engine rpm is reduced by approximately 9 percent at 60 mph -a reduction of about 1,350 rpm. Lower engine rpm can bolster fuel economy because less fuel is used. A lower-rpm cruising speed also enhances smoothness and reduces noise heard in the vehicle's cabin.

Further technical sophistication is exemplified by clutch to clutch operation that reduces complexity and packaging. It also enhances the performance feel of the transmission, as shifts feel more immediate and precise. Clutch to clutch operation is achieved with three planetary gears, three stationary clutches and two rotating clutches. It is a simple, less complex design that enables the six-speed transmission to be packaged in a size not much larger than a four-speed automatic. All forward gear shifts feature clutch to clutch operation.

Backing the engine and transmission team is an enhanced rear axle system that supports the increased power and capabilities of the Gen IV powertrains. They are mounted to the chassis with stiffer brackets and special bushings that help reduce noise and vibration.

A limited-slip axle is available, as is a locking differential. Axle ratios range from 3.42:1 to 4.10:1. A new, low rolling-resistance/low-friction pinion bearing design is used to help reduce driveline friction and enhance fuel efficiency. The rear axle carrier has thicker, stronger tubes and the rear cover pan is 50-percent thicker than previous designs.

*Preliminary, pending certification. A new voluntary power and torque certification procedure developed by the SAE Engine Test Code committee was approved March 31, 2005. This procedure (J2723) ensures fair, accurate ratings for horsepower and torque by allowing manufacturers to certify their engines through third-party witness testing. GM was the first auto manufacturer to begin using the procedure and expects to use it for all newly rated engines in the future.

2007 GMC Yukon Design

The all-new 2007 Yukon and Yukon Denali feature distinctive styling, highlighted by a clean, refined exterior form that announces the next phase in GMCÃ's professional grade design. The vehicles are characterized by a unique front-end appearance and stylized rear features. Yukon Denali is imbued with design cues that enhance its iconic appearance, including a bold, honeycomb grille and chrome accents.

Along with a cleaner and capable presence - augmented by a wider track that creates a more confident, broad-shouldered stance - the Yukon family has a tailored appearance, with new, wraparound fascias and tighter tolerances. The overall effect is a leaner, more refined appearance that suggests a trimmer vehicle, despite a nearly 3-inch (76.2 mm) increase in overall length. Yukon also is sleeker and more aerodynamic, with a more steeply raked, 57-degree windshield that contributes to a segment-best 0.363 coefficient of drag. The more aerodynamic profile helps improve fuel economy and reduce wind noise, as do narrowed gaps between panels and tighter, flusher mounting of the exterior components, such as the grille, headlamps and trim.

All vehicles boast larger standard and available wheels tailored to fit the wheel openings. Yukon models have standard 17-inch wheels; Yukon Denali has standard 18-inch wheels. Twenty-inch wheels are available on both models. This precise wheel-to-body relationship gives the vehicle a more refined look and, with the chassisÃ' wider track, a more athletic presence. Numerous standard and available features complement the new SUVsÃ' design, including new-design flat-blade windshield wipers and styled wiper arms, standard front tow hooks (4WD models), an available power-assisted rear liftgate, available factory-installed articulating running boards and a larger available sunroof.

Detailed cues, such as jewel-look lighting elements and doors that extend over the rockers - for a smoother, more integrated side view - are characteristic of the vehiclesÃ' precise, refined design ethic. Highlights include:

Yukon and Yukon DenaliÃ's new, distinctive styling incorporates large, round headlamps set in vertical housings that taper at the top and wrap around into the front fenders. The round lamps - a larger round lamp on the bottom with a slightly smaller lamp on top - have cylindrical mounting pockets that create a detailed three-dimensional appearance when viewed through the crystal-clear lenses.

The front-end lighting elements offer a unique display when illuminated. The upper lamps, which house the daytime running lamps/parking lamps, use notches in the cylindrical housing to project fingers of light at the 3-, 9- and 12 OÃ'clock positions. The low/high beam element has a quad-section pattern bulb shield, with intersecting lines and four small rings at the base that causes a GMC logo on the lens cover to illuminate.

The headlamps are separated by a large grille opening that contains a prominent, red GMC logo. The two-piece grille, with chrome surround trim, includes a taller upper section, with h orizontal, dark-colored bars on Yukon models. The upper section channels air to the radiator and the lower section frames the front license plate holder and the standard integrated tow hooks.

Yukon Denali has an updated version of the honeycomb bright grille design that makes the vehicles instantly recognizable. For the Ã'07 models, the grille design has a more intricate mesh pattern that retains the Denali-specific chrome finish. The signature grille is accented by additional premium exterior trim cues, including bright accents on the bodyside molding, roof rack and door handles. Yukon Denali also has specific headlamps, along with GMC logos etched on the headlamp bezels.

The grilles of Yukon and Yukon Denali models, along with standard halogen fog lamps, are part of the integral assembly of the full wraparound front fascia. The fog lamps, like the large round headlamps, feature jewel-like optics. A molded-in, spear-shaped feature line runs across the fascia, above the fog lamps. This shape is carried by the protective bodyside moldings around the vehicle.

As with the front end, the rear of the Yukon features an integrated, wraparound fascia. The license plate holder is located in the middle of the liftgate and a prominent GMC logo is mounted above it. The liftgate can be manually operated or electrically operated when equipped with the optional power-assisted liftgate feature. The license plate holder is integrated in a larger pocket with the available rear-view camera system.

Yukon and Yukon Denali models also feature unique rear lighting. The taillamp design includes three chrome-ringed, stacked ovals and red-color clear lenses (the back-up lamps have a clear white lens section). The three lighting elements create a concentric ring design that mimics the appearance of the round headlamps. Also like the front-end lighting, the taillamps create a unique projected light pattern that gives the appearance gear cogs.

Yukon has black D-pillars - the body section between the rearward edge of the back side windows and the outermost corner of the vehicle - with a black graphic trim piece extending from the D-pillar quarter glass to the backlight glass. Yukon models also have prominent, body-color bodyside moldings; Yukon Denali moldings are accented with chrome. The moldings carry the feature line that starts at the top of the fog lamps.

 

Refined appearance

All models feature a one-piece, body-color front fascia that wraps around into the front wheel openings, creating a sleeker, more integrated appearance. The fascia covers the front bumper beam, eliminating the conventional look of a bumper separated from other body components. This more seamless design is one of the many details that helps improve aerodynamics and reduce wind noise. Hood-to-fender gaps are reduced, as are the headlamp-to-fender gaps.

At the rear of the vehicles, gaps are reduced around the liftgate and fascia top that creates a refined and precise appearance. The liftgate-to-quarter panel and liftgate-to-taillamp tolerances have also been reduced with a new, one-piece door ring, or D-ring. The D-ring provides an extremely strong, dimensionally accurate foundation for details like the taillamp mounting holes. The quarter panels, underbody and roof all are welded to the D-ring in the upper body structure, which enables the precise fit and enhances the tight structure of the vehicles.

From the side, all models have a more integrated appearance, with t he increased windshield angle helping create a smoother transition to the roofline. The streamlined look is accented with smoother, lower-profile roof racks. Doors extend down and wrap over the rockers for a cleaner, one-piece appearance and improved bodyside integration. The rear-view mirrors are styled for improved aerodynamics and reduced wind noise. All models feature new, refined grab-style door handles that are designed to stand off from the edge of the vehicle for easier actuation. Door closing is effortless and quiet, sealing with a reassuring sound that conveys quality and solidity.

Standard running boards are integrated with the exterior design themes and optional power articulating running boards (available later in the model year) automatically extend when the doors are opened. When not in use, the boards retract inward, giving the vehicle a sleeker, more refined appearance.

 

Aerodynamic enablers

Improved aerodynamics complements the Yukon familyÃ's refined exterior elements and helps enhance driving quietness. Contributors to the vehiclesÃ' aerodynamic efficiency include:

Front air dam - Stylish and carefully integrated to wrap into the leading edge of the tires. Compared to previous models, it is lower and wider.

Tighter tolerances - New fascia designs, headlamp and grille mounting, and trim mounting attention to detail improve or eliminate gaps and improve tolerances compared to previous models, reducing drag.

Improved sealing - Airflow into the grille is more efficient with improved front-end sealing, which almost eliminates air leak paths that can create drag.

Streamlined components - Exterior components such as the rear-view mirrors, running boards and roof rack are aerodynamically tuned for reduced drag and noise. The high-mounted stop lamp (also known as the CHMSL) also is aerodynamically tuned, located in a housing that extends nearly the entire width of the roof.

Numerous body sealing features also are designed to reduce wind noise - including new-design door-to-body seals. The primary door seal has a sculpted shape with multiple internal chambers in the material that condense to provide a tighter fit when the door is closed. An auxiliary door seal, which runs from the lower A-pillar to the top of the doorframe and around the second-row door opening, has a combination of soft and stiff rubber material to prevent movement during driving. This helps maintain a constant seal, virtually eliminating the sound of wind noise as the vehicle speed increases.

 

Power liftgate

A new power liftgate is standard on Denali and available on the Yukon SLT. The liftgate can be remotely opened, regardless of whether the vehicle is locked, by pressing and holding a key fob button for one second. Pressing and holding the key fob button closes the liftgate. If the vehicle is locked, the gate also locks. A second activation switch is located in the overhead console. A third control button on the liftgate itself will also automatically close the gate, after the vehicle is loaded.

Vehicles not equipped with the power liftgate feature an electric liftgate release feature. The liftgate has a pull handle with a micro-switch release. It allows the electrically operated liftgate latches to be released in an easy, one-touch manner by simply pressing the pull handleÃ's release touch pad. The glass in the liftgate also has an easy access release switch. A pull strap and pull cup on the inside trim allow operators to close the liftgate without having to grab the outside of the gate - the liftgate almost closes itself once it reache the half-way point.

 

Windshield wipers and heated washer fluid

New, flat-blade windshield wipers, which are pre-formed to contour the curvature of the windshield glass, provide more uniform pressure on the windshield glass to enhance clearing, minimize streaking and nearly eliminate wind noise. The blades are mounted on stylish arms that have less structure than previous-design models, eliminating joint and other points that can freeze, bind or cause chatter.

RainSense automatic wipers are available on Yukon and standard on Yukon Denali. The system turns on the wipers when precipitation is detected and automatically varies the wiper speed depending on the amount of precipitation. An infrared sensor mounted near the top of the windshield (behind the inside rear-view mirror), determines when precipitation on the windshield is sufficient to warrant turning on the wipers.

A heated windshield washer fluid feature also is standard on Denali and available on SLT models. The heated fluid provides improved and faster clearing of frost and light ice buildup, as well as enhanced insect cleaning capability. When activated, regular washer fluid is diverted to a reservoir, where it is briefly super-heated to up to 140 degrees F. The system provides enough heated fluid for four cycles of use.

 

Rear-view camera system

The rear-view camera system is available with the optional navigation radio system on Yukon and Yukon Denali. The camera provides a view of the rear of the vehicle not easily seen, even with the outside or inside rearview mirrors, allowing the driver to check for persons or obstacles directly in the path of the vehicle. It also assists with parallel parking or trailer backing. Drivers should still inspect around their vehicle for objects or playing children.

A large, clear picture of the cameraÃ's field of view is available on the navigation radio screen. The rear-view camera also works with the Ultrasonic Rear Parking Assist to provide an audible proximity reference to items in the cameraÃ's view. The camera only functions when the vehicle is shifted into Reverse. For convenience, it will stay on for a calibrated length of time - determined partly by vehicle speed - after the vehicle is shifted into Drive. The camera is mounted in the license plate surround bracket for an integrated styling appearance. It provides approximately 20 feet (6.1 meters) of viewing distance behind the vehicle.

2007 GMC Yukon Interior

All-new, spacious interiors of the 2007 Yukon and Yukon Denali represent significant new levels of refinement, comfort, quality and convenience. Exemplifying style and quality, the roomier interior design creates an airy, open passenger environment, thanks to an all-new instrument panel moved down and forward, and new premium materials throughout.

Accessibility and capability of the Yukon and Yukon Denali are enhanced with features that include a unique power-release fold-and-tumble second-row seat and a third-row seat that also is easily removable. Passenger space and cargo space also are increased, compared to previous models.

 

Highlights include:

Style and quality: Premium appearance and attention to detail throughout the interior are evident in the coordinated colors, tight gaps and flush surfacing of the instrument panel, center stack and other interior surfaces. Interior quietness is best-in-class.

Comfort: New features include lower profile, more comfortable front seats with increased fore/aft travel and increased second-row seatback angles, as well as an upgraded climate control system, compared to previous models. First- and second-row heated seats are available.

Infotainment: A sophisticated new audio/navigation lineup provides new levels of entertainment and information. A new family of CD/MP3 radios leads the radio lineup, with an enhanced DVD-based rear-seat entertainment system that includes a larger, 8-inch screen and front-seat disc loading. A new touch-screen navigation radio also incorporates the view monitor for the available rear-camera system. OnStar Generation 6 is standard and XM Satellite Radio is available.

Storage: Storage capability is improved with the segment's largest center console storage bin, a larger glove box and additional new storage compartments. Cargo space behind the seats also is increased, compared with previous models.

Yukon Denali adds more standard content as well as exclusive features, including standard nuance leather seating surfaces and an available heated steering wheel.

 

Interior styling

The overall look of the Yukon and Yukon Denali interior is upscale and harmonious, with a standard two-tone color scheme offered in a variety of rich, warm colors and accented with Sapele wood-look trim that befits GMC's professional grade ethic. The upscale styling is complemented by new, softer and low-gloss materials for the instrument panel and other trim pieces. The color and grain of the materials was carefully selected for a premium, harmonious feel. Upscale details also include LED backlighting for the instruments and brushed metal-look accents for the instruments, trim plates and vents.

The rich look of the interiors is complemented by improved quality and an enhanced attention to detail evidenced in reduced gaps and tighter tolerances. Flush-mounted accessories and controls create the look of a single unit, rather than components stacked together. Also, there are almost no exposed metal hardware or latches, as all models feature enclosing "close-outs around the seat bottoms and door sill trim plates.

Yukon and Yukon Denali vehicles have a standard leather-wrapped steering wheel with redundant steering wheel-mounted audio controls. The Yukon Denali steering wheel features a real wood insert. The steering wheel has an upscale, decorative brushed-metal trim plate on each side of the horn pad. The horn pad itself bears the GMC or Denali logo.

Yukon interior color selections include a standard Opal Granite-color woven fabric headliner on all models and the choice of contrasting dark upper/light lower color combinations, with off-setting A-, B- and C-pillar garnish to heighten the expansive feel of the interior. The vehicles also use a Meridian three-dimensional-type grain on the lower console and door panels and most major interior surfaces for increased texture quality.

Yukon 's cloth (bench and bucket) seats have single-tone velour fabric inserts and patterned/dimensional velour fabric seat bolsters for a plush, luxurious feel. Fabric patterns are uniquely reflective of GMC's premium character. Available leather bench and bucket seats have premium Meridian leather, with double-stitched French seams on the backs of the seats and headrests. Yukon Denali offers standard nuance leather seating in two unique colors.

 

Class-leading comfort

Yukon and Yukon Denali enhance their class-leading seating comfort with new, European-style low-profile front-row seat designs. Door pillar-mounted first- and second-row three-point safety belts facilitate the slimmer designs (second-row, center position uses an SUV-typical belt-to-seat design) and ease entry/egress. Seat comfort has been further improved with firmer foams, including more aggressive bolsters.

Front-row seats have one-inch more fore/aft travel. Second-row seats provide 0.4-inch (10 mm) more leg and knee room. Their seatback angle is adjusted an additional two degrees rearward for extra comfort. Second-row heated seats are available. A more comfortable driving position is enabled by adjustable pedals, which are standard on Yukon Denali and Yukon SLT, and available on Yukon SLE.

The industry-exclusive power-release fold-and-tumble second-row seat allows easy access to the third-row seat or cargo area. With the push of an overhead console button or a rear-door pillar button, the seat unlatches, sending it into its folded and tumbled position. Available removable third-row seats, available in either 2- or 3-passenger configurations, are easily removed using two convenient levers on the back of the seat. The seats are easily moved and stored, too, thanks to wheels located at the front of the seat.

 

Tri-Zone climate control system

Tri-Zone climate control with individual controls for the driver and front passenger is standard. An automatic climate system is standard on Yukon Denali and Yukon models equipped with the SLT package; it is available on some Yukon SLE models. A manual-control Tri-Zone system is standard on SLE. Both versions offer simplified rear A/C settings and provide quieter operation, more effective cooling/air distribution for rear passengers and improved side-window defogging/defrosting. Both systems also allow up to 30º F difference between driver and front passenger settings, along with a separate setting for rear passengers.

The HVAC control module controls the electric rear window defogger and Automatic Climate Preconditioning (provided with the new remote vehicle starting system). The manual climate system has six fan speed settings for more flexible airflow volume adjustment. The automatic system provides six speed settings in manual mode, plus seemingly unlimited automatic mode adjustments.

 

Ergonomic controls

The standard six-gauge analog cluster provides easy-to-read displays for fuel, temp, oil, volt/ battery, odometer and speedometer. A new, dual-row Driver Information Center display has expanded alerts. All controls are ergonomically placed within easy driver reach. Autotrac transfer case, light switch and radio and HVAC controls have a rotary design for a harmonious look and feel. The center stack provides all-new audio and HVAC controls, including one-touch button control of rear-occupant temperature settings.

Up to 11 steering wheel-mounted controls standard on Yukon contribute to hands-on-the-wheel, eyes-on-the-road driving safety. The left pod includes four cruise control switches, while the right pod provides seven redundant radio controls. Yukon Denali models equipped with the available heated steering wheel include an additional control switch on the left pod that activates the feature.

On all models, the overhead console conveniently locates switch controls for the optional sunroof, power liftgate and second-row "remote seat release feature and the universal garage door opener.

 

New family of radios

Yukon and Yukon Denali offer an impressive new audio lineup; a choice of five, easy-to-operate radios - two with navigation capabilities - and two sound systems, including premium Bose sound. All radios are compatible with the standard Generation 6 OnStar system and capable of XM Satellite Radio reception. All units provide a standard auxiliary input jack for external devices, such as an iPod or remote cassette player. The input allows for plug-and-play through the sound system.

Yukon SLE comes with a standard ETR AM/FM stereo that is capable of playing both CDs and MP3-formatted discs through a single-disc changer. The single-disc radio is available with a standard high-quality, eight-speaker performance audio system or with an optional nine-speaker Bose premium performance system with remote amplifier. A 10-speaker Bose Centerpoint Surround system is standard on Yukon Denali.

A radio with an in-dash six-CD changer is standard on Yukon SLT and Yukon Denali. An uplevel Dual Play radio provides separate, single-disc changer slots for playing CD Audio and the DVD video for the rear seat entertainment system (see below); it is available on all models except Yukon SLE with base 3SA equipment.

Yukon and Yukon Denali offer two touch-screen DVD-based navigation radios. Each includes a large, 6.5-inch Active Matrix LCD display screen. The base Navigation radio includes an integral DVD slot for the map disc and a separate CD slot for music. (The other navigation radio requires the Rear Seat Entertainment option.) Both radios instantly map routes with two-dimension or three-dimension full-color map views. The system supports an off-road mode for uncharted roads and provides a low fuel pop-up, which automatically begins to map out the nearest gas station(s) when the vehicle's low fuel-warning indicator comes on. The navigation screen also doubles as the monitor for the available rear camera system.

Rear Seat Audio is standard and provides new features for more flexible entertainment, including allowing second-row passengers to plug in headphones, adjust audio volume and listen to a variation of the same type of audio source as the front-seat occupant or an entirely separate source. The system interfaces with the available Rear Entertainment System (RSE). The RSE system provides one remote and two infrared headphones.

 

Enhanced rear-seat entertainment system

The available DVD-based Rear Seat Entertainment system (RSE) provides a flip-down, color screen for second- and third seat passenger viewing. The system includes an 8.0-inch Wide-Screen LCD with a 16 x 9 aspect ratio/screen format. To provide more parental control and ease of use, DVD discs are loaded into the Dual Play radio locating in the instrument panel. This eliminates the need to reach behind the front seat to load or remove a DVD.

The Infotainment system supports the DVD system so audio can be heard throughout the entire speaker system, through wireless headphones or through rear speakers only. All RSE controls, except a parental override control, are in the rear to prevent driver distraction. The parental override control can mute speakers or stop all audio/visual activity.

 

Increased storage capacity

Yukon models equipped with bucket seats (standard on Yukon Denali) receive a new center floor console, designed with the segment's largest storage capacity - more than 20 liters of volume. Two cupholders can be removed or moved to a second position. The rear of the console provides two additional cupholders for second-row passengers, A/C vents, and a convenient power point for video or hand-held games and Rear Seat Audio controls. The glove box provides 25 percent more storage capacity than before - 5 liters of volume in total.

Cargo volume, second-row legroom, and third-row headroom have all been increased compared to previous models. Overall exterior length was increased by approximately 3 inches, but cargo volume is increased 4.2 cubic feet behind the first-row seats (118.9 liters) to 108.9 cubic feet (3084 liters). Cargo volume is 60.3 cubic feet (1707.7 liters) behind the second-row seats; 16.9 cubic feet (478.6 liters) behind the third-row.

Yukon Denali has a distinctive, more luxurious center console design that includes wood-look trim on the console cover. The cover hides the cupholders and other features until they're needed. The rich look of the console enhances the premium look of the Yukon Denali's interior.

 

Larger sunroof

Yukon and Yukon Denali offer a new, larger (36.1 inches wide by 24.6 inches long) power sliding sunroof. The new sunroof is wider than previous models. It has new express open/close and auto close features, as well as a hard composite wind deflector that reduces wind noise and interior buffeting.


2007 GMC Yukon / Yukon Denali Specifications

 

Overview

 

Models: GMC Yukon and Yukon Denali

Body style / driveline: 4-door sport utility vehicle, front-engine, half-ton 2- or 4-wheel drive

Construction: body on frame

EPA vehicle class: full-size sport utility vehicle

Manufacturing locations: Janesville , Wisconsin and Arlington , Texas

Key competitors: Ford Expedition, Toyota Sequoia; Lincoln Navigator, Nissan Armada

 

Engines

 

 

Transmission

 

Type:

Hydra-Matic 4L60, 4-speed automatic (std. with 4.8L and 5.3L engines)

Hydra-Matic 6L80, 6-speed automatic (std. with 6.2L engine)

Gear ratios (:1):

 

 

First:

3.06

4.027

Second:

1.63

2.364

Third:

1.00

1.522

Fourth:

0.70

1.152

Fifth:

--

0.852

Sixth:

--

0.667

Reverse:

2.29

3.064

Final drive ratio:

4.8L – 3.23:1, 3.73:1

3.42 :1

 

5.3L – 3.42:1, 3.73:1, 4.10:1

 

 

Chassis/Suspension

 

Front: Independent, coil over shock; Autoride real-time damping (opt.)

Rear: five-link with coil springs

Traction assist: all-speed traction control

Steering type: power-assisted rack-and-pinion

Steering ratio: 17.75:1

Steering wheel turns, lock-to-lock: 3

Turning circle, curb-to-curb (ft / m): 39.04 / 11.9

 

Brakes

 

Type: 4-wheel disc, 4-wheel ABS

Rotor diameter x thickness (in / mm):

front: 13 x 1.18 / 330.2 x 30
rear: 13.5 x .787 / 345 x 20

 

Wheels/Tires

 

Wheel size and type:

17 x 7.5-inch bright aluminum (std. Yukon )

18 x 8-inch polished aluminum (std. Yukon Denali)

20 x 8.5-inch polished aluminum (opt. Yukon )

20 x 8.5-inch chrome aluminum (opt. Yukon Denali)

 

Tires:

P255/70R17 all-season blackwall (2WD)

P255/70R17 all-season white-outlined letters (2WD)

P265/70R17 on-/off-road blackwall (4WD)

P265/70R17 on-/off-road white-outlined letters (4WD)

P265/60R18, all-season blackwall

P275/55R20, all-season blackwall

 

Dimensions

 

Exterior

 

Wheelbase (in / mm): 116 / 2946

Overall length (in / mm): 202.0 / 5129.9

Overall width (in / mm): 79.0 / 2007.0

Overall height (in / mm): 2WD: 76.9 / 1954.4; 4WD: 77 / 1955.3

Track (in / mm):

Minimum ground clearance (in / mm): 9 / 228.8

Step-in height (in / mm):

Ground to top of load floor (in / mm):

Approach angle (deg): 17

Departure angle (deg): 21.9

Curb weight (lb / kg):

Weight distribution (% front / rear) 52 / 48

 

Interior

 

 

First Row

Second Row

Third Row

Seating capacity (9 total):

2 / 3

2 / 3

2 / 3

Head room (in / mm):

40.3 / 1023

38.5 / 978.0

38.2 / 971.3

Leg room (in / mm):

41.3 / 1048.9

39.0 / 990.8

25.4 / 644.2

Shoulder room (in / mm):

65.3 / 1657.9

65.3 / 1657.4

61.7 / 1566.1

Hip room (in / mm):

64.4 / 1636.7

60.6 / 1538.9

49.1 / 1246.5

Cargo volume (cu ft / L):

 

 

 

Behind 1 st row, 2 nd row folded no third row

108.9 / 3084

 

 

Behind 2 nd row no third row

 

60.3 / 1707.7

 

Behind 3 rd row

 

 

16.9 / 478.6

Note: 3-passenger bench and 2-passenger bucket seats standard or optional depending on the model.

 

Capacities

 

 

EPA interior volume (cu ft / L): 108.9 / 3084

GVWR: (lb / kg):

Payload, base (lb / kg):

Trailer towing maximum (lb / kg):

Fuel tank (gal / L): 26 / 98

Engine oil (qt / L): 6 / 5.7

Cooling system (qt / L):

*Preliminary, pending certification. A new voluntary power and torque certification procedure developed by the SAE Engine Test Code committee was approved March 31, 2005 . This procedure (J2723) ensures fair, accurate ratings for horsepower and torque by allowing manufacturers to certify their engines through third-party witness testing. GM was the first auto manufacturer to begin using the procedure and expects to use it for all newly rated engines in the future.