2021 GMC Sierra 3500HD Denali

Complete vehicle specifications

Vehicle description

Features & options (249)

• Bluetooth®
• Heated Steering Wheel
• Remote Start
• 4WD/AWD
• Android Auto
• Apple CarPlay
• Heated Seats
• Keyless Entry
• Leather Seats
• Wi-Fi Hotspot
• Automatic High Beams
• Lane Departure Warning
• Sunroof/Moonroof
• Wireless Phone Charging
• Blind Spot Monitor
• Forward Collision Warning
• Navigation System
• Parking Assistance
• Rear View Camera
• Satellite Radio
• Tow Hitch/Tow Package
• Automatic Climate Control
• Entertainment System
• Turbo Charged Engine
• Cruise Control
• Premium Sound System
• Bed Step, Black integrated on forward portion of bed on driver and passenger side
• Bumper, front, body-color lower
• Bumper, rear body-color with bumper CornerSteps
• Cargo tie downs (12), fixed, rated at 500 lbs per corner
• CornerStep, rear bumper
• Door handles, chrome
• Fog lamps, LED
• Glass, deep-tinted
• Grille, Signature Denali grille with high gloss Black mesh and Chrome inserts
• Headlamps, LED reflector (high intensity) with LED turn signals and LED signature Daytime Running Lamps
• IntelliBeam, automatic high beam on/off
• Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
• LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
• Mirror caps, chrome
• Moldings, beltline, stainless steel
• Single Rear Wheels
• 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
• Taillamps, LED signature taillight with LED stop and reverse light
• Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
• Tires, LT275/65R20 all-terrain, blackwall (Requires single rear wheels.)
• Wheelhouse liners, rear (Not available with dual rear wheel models.)
• Wheels, 20" (50.8 cm) multi-dimensional Polished aluminum (Requires single rear wheels.)
• Window, power, rear sliding with rear defogger
• 4G LTE Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
• Air conditioning, dual-zone automatic climate control
• Air vents, rear
• Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted
• Bluetooth® for phone connectivity to vehicle infotainment system
• Bose Sound System, premium 7-speaker system with Richbass woofer
• Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
• Compass, located in instrument cluster
• Cruise control, steering wheel-mounted
• Defogger, rear-window electric
• Door locks, power
• Driver Information Center, enhanced, 8" diagonal multi-color digital display includes analog speedometer and tachometer gauges
• Driver memory, recalls driver "presets" for power driver seat and outside mirrors
• Exterior Temperature Display located in radio display
• Floor covering, color-keyed carpeting
• Floor mats, carpeted front (Unique premium carpet. Deleted when LPO floor liners are ordered or (BKF) Premium Floor Liners are ordered.)
• Floor mats, carpeted rear (Unique premium carpet. Deleted when LPO floor liners are ordered or (BKF) Premium Floor Liners are ordered.)
• HD Radio
• Keyless Open and Start
• Mirror, inside rearview auto-dimming
• Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
• Power outlet, front auxiliary, 12-volt
• Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
• Power outlet, rear auxiliary, 12-volt
• Remote vehicle starter system
• Seat adjuster, driver 10-way power including lumbar
• Seat adjuster, passenger 10-way power including lumbar
• Seat trim, Forge Perforated Leather seating surfaces
• Seating, heated driver and front outboard passenger
• Seats, front bucket with center console
• Seats, heated second row outboard seats
• Seats, ventilated driver and front passenger
• SiriusXM Radio
• Steering column, lock control, electrical
• Steering column, manual Tilt-Wheel and telescoping
• Steering wheel audio controls
• Steering wheel, heated
• Steering wheel, leather-wrapped
• Theft-deterrent system, unauthorized entry
• Universal Home Remote
• USB Ports (Inside Console with bucket seats), 2 also includes 1 SD card reader and auxiliary jack
• USB ports, 2 (first row) located on instrument panel
• USB ports, dual, charge-only (2nd row)
• Window, power front, drivers express up/down
• Window, power front, passenger express up/down
• Windows, power rear, express down
• Wireless Charging
• Wireless phone projection for Apple CarPlay and Android Auto
• Air filter, heavy-duty
• Air filtration monitoring
• Auto-locking rear differential
• Brake lining wear indicator
• Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
• Four wheel drive
• Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
• LPO, Chrome recovery hooks (dealer-installed)
• Pickup bed includes bed assist step
• Skid Plates protect the oil pan, front axle and transfer case
• Suspension, Off-Road includes twin-tube shocks (Not available with dual rear wheels.)
• Trailer brake controller, integrated
• Transfer case, two-speed active electronic Autotrac with push button control
• Automatic Emergency Braking
• Daytime Running Lamps LED signature lighting
• Following Distance Indicator
• Forward Collision Alert
• Front and Rear Park Assist, ultrasonic
• Hill Descent Control (Not available with dual rear wheels.)
• Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
• Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt
• Lane Change Alert with Side Blind Zone Alert
• OnStar and GMC connected services capable (Terms and limitations apply. See onstar.com or dealer for details.)
• Rear Cross Traffic Alert
• Rear Seat Reminder
• Safety Alert Seat
• Tire Pressure Monitoring System with Tire Fill Alert (does not apply to spare tire)
• DARK WALNUT/DARK ASH GREY FORGE PERFORATED LEATHER SEATING SURFACES
• REAR AXLE 3.42 RATIO
• TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multi-color 15" Diagonal Head-Up Display
• ENGINE BLOCK HEATER
• SUNROOF POWER
• WHITE FROST TRICOAT
• LICENSE PLATE KIT FRONT
• WINTER GRILLE COVER
• MULTI-COLOR 15" DIAGONAL HEAD-UP DISPLAY
• LPO FRONT AND REAR MOLDED SPLASH GUARDS BLACK (dealer-installed)
• REAR CAMERA MIRROR inside rearview auto-dimming with full camera display
• ALTERNATOR 220 AMPS
• WHEELS 20" TRANSIT ALUMINUM WHEELS FOR LPO 20" WHEELS AND TIRES
• ASSIST STEPS POWER-RETRACTABLE with LED perimeter lighting
• TRANSMISSION ALLISON 10-SPEED AUTOMATIC
• DENALI PREFERRED EQUIPMENT GROUP includes standard equipment
• SEATS FRONT BUCKET WITH CENTER CONSOLE (STD)
• DENALI ULTIMATE PACKAGE includes (CWM) Technology Package and (CF5) power sunroof
• GVWR 12 100 LBS. (5488 KG) WITH SINGLE REAR WHEELS
• EXHAUST BRAKE
• Rear Parking Aid
• Cross-Traffic Alert
• Front Collision Mitigation
• Front Collision Warning
• Automatic Highbeams
• Tow Hitch
• Running Boards/Side Steps
• Locking/Limited Slip Differential
• Tow Hooks
• Power Steering
• ABS
• 4-Wheel Disc Brakes
• Aluminum Wheels
• Tires - Front All-Terrain
• Tires - Rear All-Terrain
• Conventional Spare Tire
• Bed Liner
• Daytime Running Lights
• Fog Lamps
• Heated Mirrors
• Power Mirror(s)
• Integrated Turn Signal Mirrors
• Power Folding Mirrors
• Privacy Glass
• Rear Defrost
• Sliding Rear Window
• Integrated Tailgate Step
• AM/FM Stereo
• MP3 Capability
• Bluetooth® Connection
• Auxiliary Audio Input
• Smart Device Integration
• Requires Subscription
• Bucket Seats
• WiFi Hotspot
• Power Driver Seat
• Driver Adjustable Lumbar
• Power Passenger Seat
• Passenger Adjustable Lumbar
• Heated Front Seat(s)
• Cooled Front Seat(s)
• Heated Rear Seat(s)
• Mirror Memory
• Seat Memory
• Floor Mats
• Leather Steering Wheel
• Adjustable Steering Wheel
• Power Windows
• Power Door Locks
• Remote Engine Start
• Keyless Start
• Universal Garage Door Opener
• Security System
• Power Outlet
• Climate Control
• Multi-Zone A/C
• A/C
• Auto-Dimming Rearview Mirror
• Traction Control
• Stability Control
• Driver Air Bag
• Passenger Air Bag
• Front Side Air Bag
• Front Head Air Bag
• Rear Head Air Bag
• Passenger Air Bag Sensor
• Telematics
• Aerial View Display System
• Back-Up Camera
• Driver Restriction Features
• Tire Pressure Monitor
• Brake ABS System: 4-Wheel
• Brake Type: Pwr
• Disc - Front (Yes or ): Yes
• Disc - Rear (Yes or ): Yes
• Front Brake Rotor Diam x Thickness (in): 14 x 1.6
• Rear Brake Rotor Diam x Thickness (in): 14.1 x 1.3
• Cargo Box (Area) Height (in): 21
• Cargo Box Length : Floor (in)
• Cargo Box Width : Floor (in)
• Cargo Box Width : Top, Rear (in)
• Cargo Box Width : Wheelhousings (in)
• Cargo Volume (ft³): 69.5
• Cold Cranking Amps : 0° F (2nd)
• Cold Cranking Amps : 0° F (Primary)
• Maximum Alternator Capacity (amps): 220
• Tons/yr of CO2 Emissions : 15K mi/year
• Cab to Axle (in): 42.1
• Ground Clearance, Front (in): 11.18
• Ground Clearance, Rear (in): 11.18
• Height, Overall (in): 80.87
• Length, Overall (in): 250.08
• Wheelbase (in): 158.94
• Width, Max w/o mirrors (in): 81.85
• Frame Type: Hydroformed
• Fuel Tank Capacity, Approx (gal): 36
• Front Head Room (in): 43.03
• Front Hip Room (in): 61.18
• Front Leg Room (in): 44.53
• Front Shoulder Room (in): 66.02
• Passenger Capacity: 5
• Second Head Room (in): 40.12
• Second Hip Room (in): 60.24

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.