2013 GMC Sierra 3500HD 4WD Crew Cab 167.7" Denali

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

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, 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

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

Recovery hooks, front, Black

Frame, fully-boxed, hydroformed front section

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+2 multi-leaf springs for single rear wheel and 3+1+2 multi-leaf springs for dual rear wheel

Steering, power

Brakes, 4-wheel antilock, 4-wheel disc (Standard on T*30943 models only.)

Exhaust, aluminized stainless-steel muffler and tailpipe

Wheels, 17" (45.7 cm) forged polished aluminum (Standard on T*30943 models only.)

Tire, spare LT235/80R17E highway includes steel spare wheel (spare wheel will not cosmetically match the other 6 wheels) (Standard on T*30943 models only.)

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

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

Fog lamps, front, halogen

Lamps, Smoked Amber roof marker (Standard on (CHX) 13,025 lbs. GVWR (dual rear wheel) only. With single rear wheel GVWR not available with (YF5) California state emissions requirements.)

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)

Wipers, front intermittent wet-arm with pulse washers

Door handles, chrome

Tailgate protection top of tailgate protection cap

Tailgate, locking

Tailgate, EZ-Lift

Audio system feature, Bose premium speaker system with sub-woofer 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, heated, leather-wrapped and color-keyed with theft-deterrent locking feature

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

Pedals, power-adjustable for accelerator and brake

Cruise control, electronic with set and resume speed

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

Rear Parking Assist, Ultrasonic with audible warning

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.)

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