2012 GMC Sierra 2500HD 4WD Crew Cab 153.7" Denali

Engine, Vortec 6.0L Variable Valve Timing V8 SFI E85-compatible FlexFuel capable of running on unleaded or up to 85% ethanol (360 hp [268.4 kW] @ 5400 rpm, 380 lb-ft of torque [513.0 N-m] @ 4200 rpm)

Rear axle, 3.73 ratio

Suspension Package, Handling/Trailering, heavy-duty includes 35mm twin tube shock absorbers and 36mm front stabilizer bar

Pickup box, Wideside

GVWR, 9500 lbs. (4309 kg) (Requires (L96) Vortec 6.0L V8 SFI engine.)

Air cleaner, high-capacity

Transfer case, electronic shift with rotary dial controls (Requires 4WD models)

Differential, heavy-duty automatic locking rear

Four wheel drive

Cooling, external engine oil cooler heavy-duty air-to-oil, integral to driver side of radiator tank

Cooling, auxiliary external transmission oil cooler heavy-duty air-to-oil

Battery, heavy-duty 600 cold-cranking amps, maintenance-free with rundown protection and retained accessory power

Alternator, 125 amps

Trailer brake controller, integrated

Frame, fully-boxed, hydroformed front section

Recovery hooks, front, Black

Trailering equipment, heavy-duty includes trailering hitch platform, 7-wire harness (harness includes wires for: park lamps, backup lamps, right turn, left turn, electric brake lead, battery and ground) with independent fused trailering circuits mated to a 7-way sealed connector and instrument panel jumper wiring harness for electric trailer brake controller

Skid Plate Package includes front underbody shield starting behind front bumper and running to first cross-member, protecting front underbody, oil pan, differential case and transfer case, frame-mounted shields

Suspension, front independent, torsion bar

Suspension, rear 4+1 multi-leaf springs

Steering, power

Brakes, 4-wheel antilock, 4-wheel disc

Exhaust aluminized stainless-steel muffler and tailpipe

Tools, mechanical jack and wheel wrench located in back of cab

Tire carrier, lockable outside spare, winch-type mounted under frame at rear

Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door

LPO, Rear wheelhouse liner

Bumper, front body-color

Bumper, rear body-color, step-style with pad

Air dam, color-keyed

Moldings, body-color bodyside with chrome insert

Grille, chrome surround with chrome center, Denali-exclusive

Headlamps, dual halogen composite with automatic exterior lamp control and flash-to-pass feature

Lamps, dual cargo area lamps

Fog lamps, front, halogen

Glass, Solar-Ray deep-tinted (all windows except light-tinted glass on windshield and driver-and front passenger-side glass)

Wipers, front intermittent wet-arm with pulse washers

Door handles, chrome

Tailgate protection top of tailgate protection cap

Tailgate, locking

Tailgate, EZ-Lift

SiriusXM Satellite Radio is standard on nearly all 2012 GM models. Enjoy a 3-month trial to the 'XM Select' package, with over 170 channels including commercial-free music, all your favorite sports, exclusive talk and entertainment. And now add premium channels to your trial at no-cost. Welcome to the world of satellite radio (Not available with (UYS) AM/FM stereo with MP3 compatible CD/DVD player and navigation or (UE0) OnStar, delete. Requires a subscription sold separately by SiriusXM after the trial period. If you decide to continue your service at the end of your subscription, service will automatically renew and bill, at the rates in effect at the time of renewal, until you call SiriusXM at 1-866-635-2349 to cancel. See our Customer Agreement for complete terms at www.siriusxm.com. Available only to those at least 18 and older in the 48 contiguous USA and D.C.)

Audio system feature, Bose premium speaker system with subwoofer in center console

Bluetooth for phone, personal cell phone connectivity to vehicle audio system (Requires OnStar hardware (UE1), but subscription to OnStar services not required for operation.)

Seat, rear 60/40 folding bench (folds up), 3-passenger, folding (includes child seat top tether anchor)

Steering column, Tilt-Wheel, adjustable with brake/transmission shift interlock, color-keyed

Steering wheel controls mounted audio and Driver Information Center controls which provides access to enhanced Driver Information Center features and information

Instrumentation, analog with speedometer, odometer with trip odometer, fuel level, voltmeter, engine temperature, oil pressure and tachometer

Driver Information Center with odometer, trip odometer and message center (monitors numerous systems depending on vehicle equipment level including low fuel, turn signal "on", transmission temperature and oil change notification)

Warning tones headlamp on, key-in-ignition, driver and passenger buckle up reminder and turn signal on

Windows, power with driver and front passenger Express-Down

Cruise control, electronic with set and resume speed

Pedals, power-adjustable for accelerator and brake

Universal Home Remote (Not included when (VYU) Snow Plow Prep Package is ordered.)

Air conditioning, dual-zone automatic climate control with individual climate settings for driver and right-front passenger

Defogger, rear-window electric (Not available with (A48) power sliding rear window.)

Cup holders, in console and rear

Headliner, Opal Gray-colored cloth with matching retainer moldings

Visors, driver and front passenger illuminated vanity mirrors padded with cloth trim, Opal-Gray-colored

Assist handles, front passenger and rear outboard

Lighting, interior with dome and reading lights, illuminated entry feature and blue backlit instrument panel switches

Coat hooks, driver- and passenger-side rear

StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist

Daytime Running Lamps with automatic exterior lamp control

Air bags, frontal, driver and right-front passenger (Always use safety belts and the correct child restraints for your child's age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat in the appropriate infant, child or booster seat. See the Owner's Manual and child safety seat instructions for more safety information.)

Air bags, head curtain side-impact front and rear outboard seating positions with rollover sensor (Head curtain side air bags are designed to help reduce the risk of head and neck injuries to front and rear seat outboard occupants on the near side of certain side-impact collisions. Always use safety belts and the correct child restraints for your child's age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat in the appropriate infant, child or booster seat. See the Owner's Manual and child safety seat instructions for more safety information.)

Air bags, seat-mounted side-impact, driver and right-front passenger for thorax and pelvic protection (Always use safety belts and the correct child restraints for your child's age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat in the appropriate infant, child or booster seat. See the Owner's Manual and child safety seat instructions for more safety information.)

Rear Parking Assist, Ultrasonic with audible warning

Rear Vision Camera (Note: images appear on Navigation screen for units equipped with (UYS) AM/FM stereo with MP3 compatible CD/DVD player and navigation. For units not equipped with Navigation systems images will appear within rearview mirror.)

Door locks, rear child security

Tire Pressure Monitor System (does not apply to spare tire)