2012 GMC Sierra 3500HD SRW SLE

StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist (Standard on single rear wheel GVWR only.)

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. See the Owner's Manual and child safety seat instructions for more safety information.)

Door locks, rear child security (Crew Cab models only.)

MECHANICAL (20)

• Rear axle, 3.73 ratio (Not available with (L96) Vortec 6.0L V8 SFI engine on TC30903 with Single Rear Wheels.)
• Suspension Package, Handling/Trailering, heavy-duty includes 35mm monotube shocks and 34mm front stabilizer bar
• GVWR, 10,800 lbs. (4899 kg) with single rear wheels (Requires TK30743 with (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
• Trailering equipment, heavy-duty includes trailering hitch platform and 2.5- inch receiver with 2" adapter, 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, wiring harness for after-market trailer brake controller (located in the instrument panel harness) and (JL1) integrated trailer brake controller (Will be deleted if (ZW9) pickup box delete or (VF7) rear bumper delete is ordered.)
• 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
• Battery, heavy-duty 600 cold-cranking amps, maintenance-free with rundown protection and retained accessory power
• Alternator, 125 amps
• Trailer brake controller, integrated
• Recovery hooks, front, frame-mounted
• Frame, fully-boxed, hydroformed front section
• Suspension, front independent, torsion bar
• Suspension, rear 4+1+2 multi-leaf springs for single rear wheel and 3+1+2 multi-leaf springs for dual rear wheel
• Steering, power, recirculating ball
• Brakes, 4-wheel antilock, 4-wheel disc with single rear wheels
• Exhaust, aluminized stainless-steel muffler and tailpipe

EXTERIOR (13)

• Pickup box, Wideside
• 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.)
• 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.)
• Bumper, front chrome includes body-color bumper top caps
• Bumper, rear chrome, step-style with pad (Not available with (ZW9) pickup box delete)
• Moldings, bodyside, body-colored (Not available with Regular Cab models. Moldings are deleted if any SEO paint is ordered.)
• Grille, chrome surround (Interim change from (V22) chrome surround grille effective October 2011.)
• Headlamps, dual halogen composite with automatic exterior lamp control and flash-to-pass feature
• Lamps, dual cargo area lamps
• Mirrors, outside heated power-adjustable vertical camper manual-folding and extension, Black integrated turn signal indicators consisting of 50 square inch flat mirror surface positioned over a 20 square inch convex mirror surface with a common head and lower convex spotter glass (convex glass is not heated or power adjustable)
• Glass, Solar-Ray deep-tinted (all windows except light-tinted glass on windshield and driver-and front passenger-side glass) (With Regular Cab models, includes rear window. With Extended Cab models, includes rear and rear quarter windows. With Crew Cab models or (C49) rear-window defogger, includes light-tinted rear window. Included with (PCM) Work Truck Preferred Package.)
• Wipers, front intermittent wet-arm with pulse washers
• Tailgate protection top of tailgate protection cap

ENTERTAINMENT (1)

• Audio system feature, speaker system (Includes 4 speakers on Regular Cab and 6 speakers on Extended and Crew Cab Models.)

INTERIOR (15)

• Seat adjuster, manual lumbar control on the driver-side
• Seat, rear 60/40 folding bench (folds up), 3-passenger, folding (includes child seat top tether anchor) (Requires Extended or Crew Cab Models.)
• Steering wheel, leather-wrapped with theft-deterrent locking feature
• Steering column, Tilt-Wheel, adjustable with brake/transmission shift interlock
• 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 and 4SA, includes 8-point compass and outside temperature.)
• Warning tones headlamp on, key-in-ignition, driver and passenger buckle up reminder and turn signal on
• Windows, power with driver Express-Down
• 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)
• Headliner, Opal Gray-colored cloth with matching retainer moldings
• Visors, driver and front passenger, sliding with clip and illuminated vanity mirror on driver and passenger-side, Opal Gray-colored
• Assist handle, front passenger (Also includes rear assist handles in the headliner on Extended and Crew Cab models)
• Lighting, interior with dome and reading lights, illuminated entry feature and backlit instrument panel switches
• Coat hooks, rear driver and passenger side