Entertainment

• Audio system, AM/FM stereo with seek-and-scan and digital clock (Not available with (U2K) SiriusXM Satellite Radio.)
• Audio system feature, 4-speaker system (Requires Regular Cab models.)
• SiriusXM Satellite Radio, delete

The features and options listed are for the 2012 GMC Sierra 3500HD 4WD Reg Cab 137.5" WB, 59.8" CA WT and may not apply to this specific vehicle.

Exterior

• Wheels, 17" (43.2 cm) painted steel
• Tires, LT235/80R17E all-season highway, blackwall
• Lamp delete, LED center high-mounted stop/brake (CHMSL) delete and cargo area, delete (Standard with 4WD models only.)
• Bumper, front chrome
• Grille, chrome surround
• Headlamps, dual halogen composite with automatic exterior lamp control and flash-to-pass feature
• Lamps, Smoked Amber roof marker
• Mirrors, outside high-visibility vertical camper-style, Black with manual folding and extension and lower convex spotter glass
• Glass, Solar-Ray light-tinted all windows
• Wipers, front intermittent wet-arm with pulse washers
• Door handles, Black

The features and options listed are for the 2012 GMC Sierra 3500HD 4WD Reg Cab 137.5" WB, 59.8" CA WT and may not apply to this specific vehicle.

Interior

• 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
• Seat trim, Vinyl
• Floor covering, Black rubberized vinyl
• Steering column, Tilt-Wheel adjustable with brake/transmission shift interlock
• Steering wheel, includes theft-deterrent locking feature
• Instrumentation, analog with speedometer, fuel level, engine temperature, tachometer, voltmeter and oil pressure indicators
• 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, includes 8-point compass and outside temperature.)
• Warning tones headlamp on, key-in-ignition, driver and passenger buckle up reminder and turn signal on
• Cruise control electronic with set and resume speed, located on steering wheel
• Air conditioning, single-zone manual front climate control
• Cup holders, front
• Mirror, inside rearview manual day/night
• Coat hooks, rear driver and passenger side
• Visors, driver and front passenger sliding, with clip and passenger side vanity mirror with cover, Opal Gray-colored
• Assist handle, front passenger
• Lighting, interior with dome and reading lights, backlit instrument panel switches and door handle-activated illuminated entry
• Power outlets, 2 auxiliary instrument panel-mounted with covers, 12-volt

The features and options listed are for the 2012 GMC Sierra 3500HD 4WD Reg Cab 137.5" WB, 59.8" CA WT and may not apply to this specific vehicle.

Mechanical

• Engine, Vortec 6.0L Variable Valve Timing V8 SFI (322 hp [240.1 kW] @ 4400 rpm, 380 lb-ft of torque [513.0 N-m] @ 4200 rpm)
• Transmission, 6-speed automatic, heavy-duty electronically controlled with overdrive and tow/haul mode (Requires (L96) Vortec 6.0L V8 SFI engine.)
• Rear axle, 3.73 ratio
• Transfer case, with floor-mounted shifter (Requires 4WD models.)
• Four wheel drive
• Air cleaner, high-capacity
• 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 (Not standard with (LGH) Duramax 6.6L Turbo Diesel V8 engine.)
• Alternator, 125 amps
• Recovery hooks, front, frame-mounted
• Body, Chassis Cab includes (VF7) bumper delete, (9L3) spare tire delete and (5Z4) spare tire carrier delete
• Frame, reinforced C-channel
• GVWR, 13,200 lbs. (5988 kg)
• Rear axle, 66" (167.6 cm) wide
• Suspension, front independent torsion bar
• Suspension, rear 7+1 multi-leaf springs
• Suspension Package, Handling/Trailering, heavy-duty includes 46 mm piston monotube shocks and 34mm front stabilizer bar
• Steering, power recirculating ball
• Brakes, 4-wheel antilock, 4-wheel disc
• Fuel tank, front and rear, 63.5 gallon (240 liters)
• Exhaust, aluminized stainless-steel muffler and tailpipe

The features and options listed are for the 2012 GMC Sierra 3500HD 4WD Reg Cab 137.5" WB, 59.8" CA WT and may not apply to this specific vehicle.

Safety

• Daytime Running Lamps with automatic exterior lamp control
• Air bags, frontal, driver and right-front passenger with passenger-side deactivation switch (Never place a rear-facing infant restraint in the front seat of any vehicle equipped with an active frontal air bag. Always use safety belts and the correct child restraints for your child's age and size. Children are safer when properly secured in a rear seat. See the Owner's Manual and child safety seat instructions for more safety information.)
• OnStar, delete

The features and options listed are for the 2012 GMC Sierra 3500HD 4WD Reg Cab 137.5" WB, 59.8" CA WT and may not apply to this specific vehicle.

Warranty

• Basic: 3 Years/36,000 Miles
• Drivetrain: Gas Engine 5 Years/100,000 Miles Diesel Engine 5 Years/100,000 Miles
• Corrosion: 3 Years/36,000 Miles Rust-Through 6 Years/100,000 Miles
• Roadside Assistance: 5 Years/100,000 Miles

The features and options listed are for the 2012 GMC Sierra 3500HD 4WD Reg Cab 137.5" WB, 59.8" CA WT and may not apply to this specific vehicle.

Featured Equipment

• Four Wheel Drive
• Air Conditioning
• Anti-Lock Brakes
• Automatic Transmission
• Power Brakes
• Power Steering
• Tilt Steering Wheel

Options

• 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 (AE7)
• REMOTE KEYLESS ENTRY, WITH 2 TRANSMITTERS, PANIC BUTTON AND CONTENT THEFT ALARM Optional on all models when SEO (5B5) power windows, locks and mirrors is ordered (Standard on Crew Cab models. Included and only available with (AU3) power door locks or (PCM) Work Truck Preferred Package.) (Requires SEO (5B5) power windows, locks and mirrors.) (AU0)
• EMISSIONS, FEDERAL REQUIREMENTS (FE9)
• REAR AXLE, 3.73 RATIO (GT4)
• TRAILER BRAKE CONTROLLER, INTEGRATED (JL1)
• ENGINE, VORTEC 6.0L VARIABLE VALVE TIMING V8 SFI (322 hp [240.1 kW] @ 4400 rpm, 380 lb-ft of torque [513.0 N-m] @ 4200 rpm) (L96)
• TRANSMISSION, 6-SPEED AUTOMATIC, HEAVY-DUTY electronically controlled with overdrive and tow/haul mode (Requires (L96) Vortec 6.0L V8 SFI engine.) (MYD)
• SKID PLATE PACKAGE frame-mounted shields, includes front underbody shield starting behind front bumper and running to first cross-member, protecting front underbody, oil pan, differential case and transfer case (Requires 4WD models. Included with (VYU) Snow Plow Prep Package.) (NZZ)
• TIRES, LT235/80R17 ALL-TERRAIN (QZT)
• AUDIO SYSTEM, AM/FM STEREO WITH MP3 COMPATIBLE CD PLAYER seek-and-scan, digital clock, auto-tone control, Radio Data System (RDS), speed-compensated volume and TheftLock (Required with (U2K) SiriusXM Satellite Radio.) (US8)

The features and options listed are for the 2012 GMC Sierra 3500HD 4WD Reg Cab 137.5" WB, 59.8" CA WT and may not apply to this specific vehicle.