2021 GMC Sierra 2500HD SLE 4WD Automatic

• Bed Step, Black integrated on forward portion of bed on driver and passenger side
• Bumper, front chrome lower
• Bumper, rear chrome with bumper CornerSteps
• Cargo tie downs (12), fixed rated at 500 lbs per corner
• CornerStep, rear bumper
• Door handles, body-color
• Glass, deep-tinted
• Grille (Chrome surround with high gloss Black mesh and Chrome inserts.)
• Headlamps, LED reflector with incandescent turn signals and LED signature Daytime Running Lamps
• Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
• LED tail and incandescent stop, turn and reverse light
• Mirrors, outside power-adjustable vertical trailering with heated upper glass, lower convex mirrors, integrated turn signals, manual folding/extending (extends 3.31 [84.25mm]), Black
• Moldings, beltline, stainless steel
• Tailgate and bed rail protection caps, top
• Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
• Tailgate, GMC MultiPro Tailgate with six functional load/access features
• Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
• Tire, spare LT245/75R17E all-season, blackwall (Included and only available with (QHQ) LT245/75R17E all-season, blackwall tires with (E63) pickup bed models. Available to order when (ZW9) pickup bed delete and (QHQ) LT245/75R17E all-season, blackwall tires are ordered.)
• Tires, LT245/75R17E all-season, blackwall
• Wheels, 17 (43.2 cm) machined aluminum

• 4G LTE Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
• Air conditioning, single-zone
• Air vents, rear (Not available with Regular Cab model.)
• Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
• Audio system feature, 6-speaker system (Requires Crew Cab or Double Cab model.)
• Audio system, GMC Infotainment System with 8 diagonal color touch-screen AM/FM stereo with seek-and-scan and digital clock, includes Bluetooth streaming audio for music and select phones; featuring wired Android Auto and Apple CarPlay capability for compatible phones
• Bluetooth for phone, connectivity to vehicle infotainment system
• Compass, located in instrument cluster
• Cruise control, steering wheel-mounted
• Door locks, power
• Driver Information Center, 4.2 diagonal color display includes driver personalization
• Exterior Temperature Display, located in radio display
• Floor covering, color-keyed carpeting
• Floor mats, rubberized-vinyl front (Included and only available with (B30) color-keyed carpeting. Deleted when LPO floor liners are ordered.)
• Floor mats, rubberized-vinyl rear (Requires Crew Cab or Double Cab model. Included and only available with (B30) color-keyed carpeting. Deleted when LPO floor liners are ordered.)
• GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details)
• Instrument cluster, 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
• Mirror, inside rearview, manual tilt
• Power outlet, front auxiliary, 12-volt
• Rear Seat Reminder (Requires Crew Cab or Double Cab model.)
• Remote keyless entry
• Seat adjuster, driver 4-way manual
• Seat adjuster, passenger 4-way manual
• Seat trim, cloth
• Seat, rear 60/40 folding bench (folds up), 3-passenger (includes child seat top tether anchor) (Not available with Regular Cab model.)
• Seats, front 40/20/40 split-bench with upper covered armrest storage (Standard on Crew Cab and Double Cab models only.)
• SiriusXM Radio enjoy an All Access trial subscription with over 150 channels including commercial-free music, plus sports, news and entertainment. Plus listening on the SiriusXM app, online and at home on compatible connected devices is included, so you'll hear the best SiriusXM has to offer, anywhere life takes you. Welcome to the world of SiriusXM. (IMPORTANT: The SiriusXM radio trial package is not provided on vehicles that are ordered for Fleet Daily Rental (FDR) use. If you decide to continue service after your trial, the subscription plan you choose will automatically renew thereafter and you will be charged according to your chosen payment method at then-current rates. Fees and taxes apply. See the SiriusXM Customer Agreement at www.siriusxm.com for complete terms and how to cancel. All fees, content, features, and availability are subject to change. GM connected vehicle services vary by vehicle model and require active service plan, working electrical system, cell reception and GPS signal. See onstar.com for details and limitations.)
• Steering column, Tilt-Wheel, manual with wheel locking security feature
• Steering wheel audio controls
• Steering wheel, leather-wrapped
• USB ports, 2 (first row) located on instrument panel (Not available with (PDQ) Preferred Package or (ZL6) ProGrade Trailering System.)
• Window, power front, passenger express down
• Windows, power front, drivers express up/down
• Windows, power rear, express down (Not available on Regular Cab models.)

• Air filter, heavy-duty
• Air filtration monitoring
• Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
• Auto-locking rear differential
• Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
• Brake lining wear indicator
• Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
• Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine. Not included with (ZW9) pickup bed delete.)
• Cooling, auxiliary external transmission oil cooler
• Cooling, external engine oil cooler
• Engine, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline, (401 hp [299 kW]
• Four wheel drive
• Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
• GVWR, 10,450 lbs. (5012 kg) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 17 wheels, or TK20903 model and (L8T) 6.6L V8 gas engine with 18 or 20 wheels.)
• Pickup bed includes bed assist step
• Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
• Recovery hooks, front, frame-mounted, black
• Steering, Recirculating Ball with smart flow power steering system
• Suspension Package (Not available with (X31) Off-Road Package.)
• Trailer brake controller, integrated
• Transfer case, two-speed, electronic shift with push button controls (Requires 4WD models.)
• Transmission, 6-speed automatic, heavy-duty

• Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
• Daytime Running Lamps, LED signature lighting
• Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
• OnStar and GMC connected services capable (Terms and limitations apply. See onstar.com or dealer for details.)
• Rear Vision Camera (Deleted with (Z6A) Gooseneck / 5th Wheel Prep Package or (ZW9) pickup bed delete.)
• StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
• Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
• Tire Pressure Monitoring System with Tire Fill Alert (does not apply to spare tire)

Model Highlights

The Sierra HD comes in one of several different body styles with long and short bed options. However, despite this complexity there are only two available engines, both V8 units displacing 6.6 liters. The gasoline option is paired to a 6-speed automatic and makes 401 horsepower and 464 lb-ft of torque. The more expensive diesel engine is aided by a turbocharger and makes 445 horsepower and a massive 910 lb-ft of torque. Unlike the gasoline engine, the diesel is mated to a 10-speed automatic to handle all that torque. When properly equipped, a Sierra HD 3500 should be able to tow up to 35,000lbs with a 5th wheel attachment, or 20,000 lbs with a traditional trailer hitch, thanks in large part to the massive torque produced by its diesel V8. Sierra HD models are available with either rear-wheel drive of selectable four-wheel drive. The Sierra HD comes in either 2500 form or 3500 form with 3500 versions offering a bit more towing capacity and payload because they can be optioned with a "dually" setup, giving the truck an extra pair of wheels on the rear axle. Both trucks can be optioned with a regular cab, a double cab featuring four conventional doors, or a crew cab with even bigger rear seats. Truck beds are either 6'9" or 8' depending on configuration, though the only restriction to bed size is in the regular cab version, which always comes with the longer bed. In addition to copious options for the basic architecture of the truck, Sierra buyers are also offered plenty of choices when it comes to the tech in their new vehicle. GMC's ProGrade Trailering system features fifteen camera views to help keep an eye on things behind the truck, even counting a class exclusive transparent trailer view among its features. The available heads up display on the Sierra HD is massive, measuring 15-inches across, while the rear-view mirror can be switched between displaying an actual mirror and the view from the rearward facing camera. GM claims their MultiPro tailgate is the world's first six-function tailgate. In practice that means it's easy to load things into and out of the back of the truck, while also providing a ton of utility options for carrying loads with the tailgate dropped. It also has a built-in step to make it easier to climb in and out of the bed of the truck. Concentrating on off-roading capabilities, 4AT models come standard with four-wheel drive along with a more off-road biased suspension setup that includes Rancho Shocks. Other standard features on the 4AT include skid plates, an Eaton locking differential, Michelin all-terrain tires, a heads-up display, GMC's HD Surround Vision camera system, hill descent control and an off road mode. Most buyers though, will probably opt for the Denali version of the Sierra HD. Available in both 2500 and 3500 forms, Denali versions of the Sierra HD come standard with the bigger crew cab, body colored front and rear bumpers, LED lights in the cargo bed, tinted glass, LED headlights, daytime running, front fog and taillights, powered external mirrors, a MultiPro tailgate, UltraSonic front and rear parking sensors, Lane Departure Warning, Lane Change Alert with Automatic Braking, Rear Cross-Traffic Alert, Following Distance Indicator and Hill Descent Control (HDC). The Denali Interior features include, 4G LTE Wi-Fi, Bluetooth and Apple CarPlay\Android Auto connectivity, an 8-inch infotainment screen and an 8-inch digital instrument cluster, an 8 speaker Richbass sound system, dual-zone climate control, heated front and rear seats, vented front seats, a heated steering wheel, keyless start and wireless device charging.