All GMC Sierra retail models come standard with the OnStar Generation 7 system, including a one-year subscription to the Safe & Sound plan. The OnStar service 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 air bag, 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 and provides remote door-unlocking service (when the vehicle is equipped with power door locks).


2007 GMC Sierra Denali details

The unique 2007 GMC Sierra Denali is a truck like no other, with enhanced features and craftsmanship that distinguish it from other models - as well as offerings from other manufacturers. It is a comprehensive package of performance, amenities and style that delivers a powerful, understated elegance unique to GMC. The '07 model remains instantly identifiable, with its iconic, Denali-specific signature chrome grille. Additional chrome trim and body-color bumpers further distinguish it. 2007 GMC Sierra Denali is available in three exterior colors: Onyx Black, Olympic White and Fine Silver Birch Metallic.

The Sierra Denali is powered by an exclusive, 400-horsepower (298 kW)** 6.2L V-8 engine, with a six-speed automatic transmission and either 2WD or all-wheel drive. It also features a 9.5-inch rear axle (2WD) or 8.6-inch rear axle (AWD) with 3.42 gears and a locking rear differential. Chassis features including the Z85 suspension, four-wheel disc brakes and StabilTrak are standard, along with skid plates and tow hooks. 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 Sierra models.

2007 GMC Sierra Denali also offers a unique combination of interior style and luxury, including standard nuance leather-covered front and rear seats, with heated, 12-way power-adjustable front seats, as well as leather trim throughout. A Denali-exclusive leather-wrapped steering wheel, which features wood grain accents and a host of auxiliary controls, is standard. Denali models also feature a unique center console, enhanced interior bright work and detailed, highly finished embossed sill plates that greet passengers when they open any of the Sierra Denali's doors. The unique center console has wood grain trim that conceals the lid and cupholder pockets, creating a more finished and refined appearance. In addition to a full complement of standard amenities, Sierra Denali offers exclusive features such as an available heated steering wheel. Interior colors include all-Ebony and an exclusive Cocoa/Light Cashmere combination.

Standard features include roof-mounted side curtain air bags, power-adjustable pedals, electrochromic (auto-dimming) inside mirror, dual-zone automatic climate control, rain-sensing automatic windshield wipers, remote starting system, EZ Lift Tailgate and Ultrasonic Rear Parking Assist. From an entertainment standpoint, Sierra Denali comes standard with an AM/FM MP3-capable radio with a six-disc in-dash CD changer, Bose premium speaker sound system, rear-seat audio and XM Satellite Radio.

Optional features include the cargo management system, power-sliding rear window, roof rack, navigation radio system, power sunroof and a rear-seat and a DVD-based rear-seat entertainment system.

*SAE certified. 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.

** Pending certification.

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