2012 GMC Sierra 2500HD Work Truck 4WD Automatic

• Bumper, front chrome includes body-color bumper top caps
• Bumper, rear chrome, step-style with pad (Requires RPO (E63) wideside pickup box)
• Glass, Solar-Ray light-tinted, all windows
• Grille, chrome surround
• Headlamps, dual halogen composite with automatic exterior lamp control and flash-to-pass feature
• Lamps, dual cargo area lamps
• Mirrors, outside manual, Black, manual-folding
• Spare tire lock keyed cylinder lock that utilizes same key as ignition and door (Not included when (ZW9) pickup box delete or (VF7) rear bumper delete is ordered.)
• Tailgate protection top of tailgate protection cap
• Tire carrier, outside spare, winch-type mounted under frame at rear (Orders with (ZW9) Pickup box delete will not include a Spare Tire Carrier unless a spare tire is ordered.)
• Tires, LT245/75R17E all-season, blackwall
• Wheels, 17 (43.2 cm) steel includes 17 x 7.5 (43.2 cm x 19.1 cm) steel spare wheel. Spare not included with (ZW9) pickup box delete unless a spare tire is ordered
• Wipers, front intermittent wet-arm with pulse washers

• Air conditioning, single-zone manual front climate control
• Assist handle, front passenger (Also includes rear assist handles in the headliner on Extended and Crew Cab models)
• Audio system feature, 4-speaker system (Requires Regular Cab models)
• Audio system, AM/FM stereo with seek-and-scan and digital clock (Not available with (U2K) SiriusXM Satellite Radio)
• Coat hooks, rear driver and passenger side
• Cruise control, electronic with set and resume speed, located on steering wheel
• Cup holders, front (Also includes rear cupholders on Extended and Crew Cab models)
• 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) (Driver Information Center controls are operated through the trip button unless (UK3) steering wheel mounted audio controls is ordered. On 3SA and 4SA, includes 8-point compass and outside temperature.)
• Floor covering, Black rubberized vinyl
• Headliner, Opal Gray-colored cloth with matching retainer moldings
• Instrumentation, analog with speedometer, fuel level, engine temperature, tachometer, voltmeter and oil pressure indicators
• Lighting, interior with dome and reading lights, illuminated entry feature and backlit instrument panel switches
• Mirror, inside rearview manual day/night
• Power outlets 2 auxiliary instrument panel-mounted with covers, 12-volt
• Seats, front 40/20/40 split-bench, 3-passenger, driver and front passenger manual reclining with outboard head restraints and center fold-down armrest with storage
• SiriusXM Satellite Radio, delete
• Steering column, Tilt-Wheel, adjustable with brake/transmission shift interlock
• Steering wheel includes theft-deterrent locking feature
• Visors, driver and front passenger, sliding with clip and passenger side vanity mirror with cover, Opal Gray-colored
• Warning tones headlamp on, key-in-ignition, driver and passenger buckle up reminder and turn signal on

• Air cleaner, high-capacity
• Alternator, 125 amps
• Battery, heavy-duty 600 cold-cranking amps, maintenance-free with rundown protection and retained accessory power
• Brakes, 4-wheel antilock, 4-wheel disc
• Cooling, auxiliary external transmission oil cooler heavy-duty air-to-oil
• Cooling, external engine oil cooler heavy-duty air-to-oil, integral to driver side of radiator tank
• 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]
• Exhaust aluminized stainless-steel muffler and tailpipe
• Four wheel drive
• Frame, fully-boxed, hydroformed front section
• GVWR, 9500 lbs. (4309 kg) (Requires (L96) Vortec 6.0L V8 SFI engine. Not available on TC20903 or TK20943 models.)
• Pickup box, Wideside
• Rear axle, 3.73 ratio
• Recovery hooks, front, Black
• Steering, power, recirculating ball
• Suspension Package, Handling/Trailering, heavy-duty includes 35mm twin tube shock absorbers and 36mm front stabilizer bar
• Suspension, front independent, torsion bar
• Suspension, rear 4+1 multi-leaf springs
• Transfer case, with floor-mounted shifter (Requires 4WD models)
• Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode (Requires (L96) Vortec 6.0L V8 SFI engine.)

• 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.)
• Daytime Running Lamps with automatic exterior lamp control
• OnStar, delete
• StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
• Tire Pressure Monitor System (does not apply to spare tire)

Model Highlights

The 2500 and 3500 come with a 6.0L V8 engine standard, though a 6.6L turbo-diesel V8 is available. All Sierras come with a heavy-duty 6-speed automatic transmission. The 2500 and 3500 can be had as either a regular, extended or crew cab, with a standard or long bed, and with either a 2- or 4-wheel drivetrain. Dual rear wheels are available on some models. There are four trim levels, Work Truck, SLE, SLT and Denali. The 6.0L V8 engine is capable of 360 horsepower and 380 pound-feet of torque and the 6.6L turbo-diesel engine puts out 397 horsepower and 765 pound-feet of torque. When equipped with the diesel engine, the trucks are now capable of towing up to 10,000 lbs. The Sierra HD features a high-strength frame and heavy-duty front and rear suspension systems. Now rated at 6,000 pounds, all 4-wheel drive front suspension systems can easily support a snow plow when properly equipped. There are two suspension packages available for the 2500: the Z85 handling and trailering suspension and the Z71 off-road package, which adds high-performance shocks and a bigger stabilizer bar. Some standard features cross all Sierra lines, such as driver and passenger air bags, 4-wheel disc brakes with anti-lock brakes and tire pressure monitoring. GM's OnStar system is standard on the SLE trim and better. The system includes crash response, roadside assistance and remote door unlock services. The Sierra Denali brings the Sierra HD pickup's towing/hauling capabilities in a luxury and style-oriented package. The model's available in both 2500 and 3500 trim and both 2-wheel and 4-wheel drive--but only as a crew cab. The Denali comes with heavy-duty trailering gear, an electronic shift-on-the-fly transfer case on 4-wheel drive models, special wheels, body-color panels and molding and chrome trim, fog lights, power, heated mirrors, a high-performance Bose audio system and leather power-adjustable seats. Equipment availability is dependent on trim. Pretty much anything available in a pickup is available on a Sierra-- power everything, remote keyless entry, heated mirrors, privacy glass, bed liner, front tow hooks and chrome or aluminum wheels are all available across the lineup. Navigation is an option as is rear-seat entertainment for the crew cab models. Heated power seats are available, as is cruise control, sunroof and a rear window defogger. High-tech touches such as a rearview camera and rear parking assist are optional, too and would probably come in handy on a big truck like the Sierra. MP3-compatible stereo with XM satellite radio can be found on some models and a Bose system with USB interface is available.