2026 GMC Sierra 2500HD AT4X Crew Cab 4WD

Experience the pinnacle of heavy-duty performance with this new 2026 GMC Sierra 2500HD AT4X Crew Cab 4WD, finished in bold Black. Powered by a 470hp Duramax 6.6L Turbo-Diesel V8 paired with an Allison 10-speed automatic transmission, this truck is ready for any challenge. The AT4X trim brings off-road capability with Multimatic DSSV shocks, underbody skid plates, and 35" mud terrain tires on 18" machined aluminum wheels. Tow with confidence using the ProGrade Trailering System, Trailer Cam Provisions, and Class IV hitch. Enjoy premium comfort with full grain leather, heated/ventilated and massaging front seats, heated rear seats, a 16-way power adjuster, and a heated steering wheel. Stay connected with a 13.4" touchscreen, Bose Premium sound, wireless charging, and Google Built-In. Advanced safety features include HD Surround Vision, Forward Collision Alert, Lane Departure Warning, and Automatic Emergency Braking. The signature MultiPro Tailgate, spray-on bedliner, and power sunroof complete this ultimate package. Discover unmatched power, technology, and luxury-perfect for work or play.Price includes: $1000 - Buick & GMC Consumer Cash Program 26-40ACB-006 (Exp. 04/30/2026)Engine cooler: Engine oil cooler,Radiator,Powertrain type: ICE,Selectable mode transmission,Transmission oil cooler,Drive type: Four-wheel drive,Traction control: All-speed ABS and driveline traction control,Suspension ride type front: Independent front suspension,Suspension type front: Short and long arm front suspension,Front anti-roll: Front anti-roll bar,Springs front: Front torsion springs,Suspension ride type rear: Rigid axle rear suspension,Springs rear: Rear leaf springs,Rear Springs: Heavy-duty rear springs,Speed sensitive steering: Digital Steering Assist speed sensitive power steering,Steering: Hydraulic power-assist steering system,Steering type: Re-circulating ball steering,Ventilated brakes: Front and rear ventilated disc brakes,ABS Brakes: Four channel ABS brakes,Electronic parking brake,Driver selectable steering effort,Suspension type rear: Leaf spring rear suspension,Tailpipe: Stainless steel single exhaust,Rear locking differential: Driver selectable rear locking differential,Sequential shift control,Locking hub control: Auto locking hub control,Electronic stability control: Electronic stability control system with anti-roll,Brake type: 4-wheel disc brakes,ABS Brakes: 4-wheel antilock (ABS) brakes,Convex spotter: Driver and passenger convex spotter mirrors,Headlight type: Projector beam headlights,Headlights: LED low and high beam headlights,Auto headlights: Auto on/off headlight control,Running lights: LED daytime running lights,Multiple headlights: Multiple enclosed headlights,Delay off headlights: Delay-off headlights,High mount stop light: High mounted center stop light,Perimeter approach lighting: Remote activated perimeter approach lighting,LED brake lights,Front impact airbag driver: Driver front impact airbag,Front side impact airbag driver: Seat mounted side impact driver airbag,Overhead airbags: Curtain first and second-row overhead airbags,Front impact airbag passenger: Passenger front impact airbag,Front side impact airbag passenger: Seat mounted side impact front passenger airbag,Occupancy sensor: Airbag occupancy sensor,Number of airbags: 6 airbags,3-point seatbelt: Rear seat center 3-point seatbelt,Seatbelt pretensioners: Front seatbelt pretensioners,Illuminated entry,Instrumentation display: Digital/analog instrumentation display,Configurable instrumentation gauges,Low tire pressure warning: Tire specific low air pressure warning,Immobilizer,Vehicle tracker: Stolen Vehicle Assistance vehicle tracker with vehicle slowdown,Restricted driving mode/alerts: Teen Driver restricted driving mode/alerts,Hill start assist,Seatbelt pretensioners number: 2 seatbelt pre-tensioners,Child door locks: Manual rear child safety door locks,Turn signal in door mirrors: Turn signal indicator in door mirrors,Fog lights: LED front fog lights,Speed control: Off-road speed control,Gauge cluster display size (inches): Gauge cluster display size: 12.30,Interior courtesy lights: Fade interior courtesy lights,Remote panic alarm,Cab mounted cargo light,Skid plate: 3 underbody skid plates,Body panels: Galvanized steel/aluminum body panels with side impact beams,Side steps: Illuminated power side steps,Number of doors: 4 doors,Bed-rail protectors: Pickup bed-rail protectors,Bumpers front: Black front bumper,Tow hooks front: 2 front tow hooks,Bumpers rear: Black rear bumper,Fenders: Black fender flares,Window Trim: Black side window trim,Door handle material: Black door handles,Paint: Non-metallic paint,Special paint: Monotone paint,Wheel covers: Chrome hub wheel covers,Spare tire location: Crank-down spare tire,Door mirror type: Power extendable trailer mirrors,Exterior mirror spot lights: Exterior mirror LED spot lights,Towing wiring harness: Trailer wiring harness,Towing class: Class IV tow rating,Towing hitch: Trailer hitch,Towing brake controller: Trailer brake controller,Towing trailer sway: Trailer sway control,Towing hitch light: Trailer hitch light,Front splash guards,Rear bumper step,Rear splash guards,Door mirror style: Black door mirrors,Bumper insert: Dark chrome front bumper insert,Bumper rub strip front: Black front bumper rub strip,Passenger doors rear left: Conventional left rear passenger door,Door mirrors: Power door mirrors,Rear cargo door: MultiPro Tailgate tailgate,Heated door mirrors: Heated driver and passenger side door mirrors,Boxside steps: BedStep integrated side steps,Passenger doors rear right: Conventional right rear passenger door,Visor driver mirror: Driver visor mirror,Visor illuminated driver mirror: Illuminated driver visor mirror,Visor passenger mirror: Passenger visor mirror,Visor illuminated passenger mirror: Illuminated passenger visor mirror,Rearview mirror: Auto-dimming rear view mirror,Rear seat direction: Front facing rear seat,Overhead console: Mini overhead console,Glove box: Locking glove box,Number of beverage holders: 8 beverage holders,Seatback storage pockets: 2 seatback storage pockets,Door bins front: Driver and passenger door bins,Door bins rear: Rear door bins,Under seat tray rear: Rear under seat tray,Cruise control: Cruise control with steering wheel mounted controls,Adaptive cruise control,Driver foot rest,Door locks: Power door locks with 2 stage unlocking,Keyfob keyless entry,All-in-one key: All-in-one remote fob and ignition key,Auto door locks: Auto-locking doors,Auto-dimming door mirror driver: Auto-dimming driver side mirror,Tailgate control: Tailgate/power door lock,Keyfob cargo controls: Keyfob trunk control,Keyfob window controls: Keyfob window control,Tachometer,Oil pressure gauge,Engine/electric motor temperature gauge,Voltmeter,Inclinometer,Transmission temperature gauge: Transmission fluid temperature gauge,Engine hour meter,Clock: Digital clock,Compass,Temperature display: Exterior temperature display,Folding door mirrors: Power folding door mirrors,Engine temperature warning,Battery charge warning,Key in vehicle warning,Door ajar warning,Turn signal warning: Turn signal on warning,Oil pressure warning,Transmission fluid temperature warning: Transmission fluid temp warning,Brake pad warning: Brake pad wear indicator,Rear seat check warning: Rear Seat Reminder rear seat check warning,Trip computer,First-row windows: Power first-row windows,Second-row windows: Power second-row windows,Wipers: Variable intermittent front windshield wipers,Easy lift tailgate: EZ Lift,Easy lower tailgate: EZ Lower,Beverage holders rear: Rear beverage holders,Auto-dimming door mirror passenger: Auto-dimming passenger side mirror,Built-in virtual assistant: Google Built-In built-in virtual assistant,Driver information center,Day/Night rearview mirror,Front reading lights,Rear reading lights,Variable panel light: Variable instrument panel light,Headlights on reminder,Trip odometer,Weight capacity alert: GCW Alert weight capacity alert,Integrated tailgate step,Full gauge cluster screen,Seating capacity: 5,Front head restraints: Height adjustable front seat head restraints,Front head restraint control: Manual front seat head restraint control,Rear seats fixed or removable: Fixed rear seats,Rear seats: Split-bench rear seat,Rear seat folding position: Fold-up rear seat cushion,Folding rear seats: 60-40 folding rear seats,Rear head restraints: Height adjustable rear seat head restraints,Rear head restraint control: Manual rear seat head restraint control,Rear head restraint control: 2 rear seat head restraints,Front seatback upholstery: Plastic front seatback upholstery,Door trim insert: Vinyl door trim insert,Headliner material: Cloth headliner material,Headliner coverage: Full headliner coverage,Floor covering: Full carpet floor covering,Panel insert: Aluminum instrument panel insert,Gearshifter material: Urethane gear shifter material,Door panel insert: Aluminum and sim carbon fiber door panel insert,Console insert material: Chrome console insert,Interior accents: Chrome interior accents,Rear seat upholstery: Vinyl rear seat upholstery,Rear seatback upholstery: Carpet rear seatback upholstery,Number of memory settings: 2 memory settings,Climate control: Automatic climate control,Air conditioning: Yes,Dual-zone front climate control,Rear under seat ducts: Rear under seat climate control ducts,Rear console climate control ducts,Steering wheel material: Leather steering wheel,Heated steering wheel,Armrests rear: Rear seat center armrest,Floor coverage: Full floor coverage,Cabback insulator,Seek scan,Aux input jack: Auxiliary input jack,External memory: Premium GMC Infotainment System external memory control,Internet radio capability,Satellite trial: 3 month satellite trial subscription,Amplifier,Antenna: Fixed audio antenna,Number of first-row screens: 2 total number of 1st row displays,Wireless speaker number: Kicker MultiPro Sound System 2 wireless speakers,Speakers number: 12 speakers,Exterior speakers: 2 exterior speakers,Turn-by-turn nav: OnStar Turn-by-Turn Navigation,Emergency SOS Capable: OnStar vehicle integrated emergency SOS system,Internet access: Wi-Fi Hotspot capable mobile hotspot internet access,Mobile app access: MyGMC Mobile App mobile app access,Basic warranty: 36 month/36,000 miles,Corrosion perforation warranty: 72 month/100,000 miles,Maintenance warranty: 12 month/unlimited,Preferred Equipment Group 4SG - Includes Trailer Side Blind Zone Alert,SiriusXM with 360L Trial Subscription,Power Sliding Rear Window with Defogger,Rear window defroster,Rear windshield: Power rear windshield,Safety Alert Seat,Ultrasonic Front and Rear Park Assist,Trailer Cam Provisions and Trailer Viewing Software,Electric Rear-Window Defogger,Gloss Black Header Grille and Grille Insert Bars,Unauthorized Entry Theft-Deterrent System,Inside Rearview Auo-Dimming Rear Camera Mirror,Front Rain-Sensing Wipers,120-Volt Instrument Panel Power Outlet,LED Smoked Amber Roof Marker Lamps,Heated Driver and Front Outboard Passenger Seats,Wireless Charging,Front Premium Floor Liners with Removable Carpet Insert,Rear Premium Floor Liners with Removable Carpet Insert,OnStar Services Capable,Heated 2nd Row Outboard Seats,Power Front Passenger Windows with Express Up/down,One-touch down window: Front and rear one-touch down windows,One-touch up window: Driver and passenger one-touch up windows,HD Surround Vision,Front camera: Front mounted camera with washer,Right camera: Right side camera,Left camera: Left side camera,Rear camera: HD Rear Vision Camera w/Hitch View rear mounted camera,Camera: HD Surround Vision w/Hitch View aerial view camera,Ventilated Driver and Front Passenger Seats,Manual Tilt-Wheel/telescoping Steering Column,Steering wheel tilt: Manual tilting steering wheel,Steering wheel telescopic: Manual telescopic steering wheel,Power Sunroof,Multicolor 15" Diagonal Head-Up Display,Head up display: Head-up display,Speedometer: Redundant digital speedometer,Keyless Open and Start,Fob engine controls: Keyless Open/Keyless Start with hands-free access and push button start,Ignition type: Push-button,Bose Premium Series 12-Speaker System,Speakers: Bose Performance Series speakers,Digital signal processor: Bose Centerpoint Surround digital signal processor,Noise cancellation: AudioPilot active noise cancellation,Push Button Start,LED Cargo Area Lighting,Remote Vehicle Starter System,Keyfob remote start,Smart device remote start,Hill Descent Control,Floor-Mounted Center Console,Beverage holders: Front beverage holders,Floor console: Full floor console,Floor console storage: Covered floor console storage,Armrests front center: Front seat center armrest,Bed View Camera with Two Trailer Camera Provisions,Trailer Tire Pressure Monitor Sensors,Sierra HD Pro Safety,Forward Collision Alert,Following Distance Indicator,Front Pedestrian Braking,Buckle to Drive,Automatic Emergency Braking,Brake assist system: Automatic Emergency Braking predictive brake assist system,IntelliBeam Automatic High Beam On/off,Lane Departure Warning,Wireless Phone Projection,2 USB Ports,Rear Cross Traffic Alert,2 Charge/data USB Ports Inside Center Console,Steering Wheel Audio Controls,2 Charge-Only Rear USB Ports,Universal Home Remote,120-Volt Bed Mounted Power Outlet,2-Speed Active Transfer Case,4WD type: AutoTrac part and full-time 4WD,Transfer case: Electronic transfer case shift,Two-Speed Transfer Case,Deep-Tinted Glass,Spray-On Pickup Bedliner with GMC Logo,ProGrade Trailering System,In-Vehicle Trailering System App,Vehicle and trailer reverse assist: Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only,Trailer light test,Trailer light malfunction warning,Trailer theft alarm,Hitch Guidance with Hitch View,Vehicle to trailer hitching assist: Hitch Guidance vehicle to trailer hitching assist,Rear Wheelhouse Liners,16-Way Power Driver Seat Adjuster with Lumbar - Includes Driver seat direction: Driver seat with 12-way directional controls,Driver lumbar: Driver seat with 4-way power lumbar,Power driver seat controls: Driver seat power reclining,lumbar support,seatback side bolster support,cushion tilt,fore/aft control and height adjustable control,Massaging driver seat,Front Bucket Seats - Includes 16-Way Power Passenger Seat Adjuster with Lumbar,Passenger seat direction: Front passenger seat with 12-way directional controls,Front passenger lumbar: Front passenger seat with 4-way power lumbar,Power passenger seat controls: Passenger seat power reclining,lumbar support,seatback side bolster support,cushion tilt,fore/aft control and height adjustable control,Massaging front passenger seat,Full Grain Leather Seat Trim,Driver Memory,Winter Grille Cover,Pickup Box,Capped Fuel Fill,11,350 lbs (5,148 Kg) GVWR,3.42 Axle Ratio,Off-Road Suspension - Includes Suspension: Off-road ride suspension,Shock absorbers: Multimatic DSSV gas-pressurized shock absorbers,AM/FM Stereo with Premium GMC Infotainment System - Includes Voice activated audio: Voice activated audio controls,Wireless streaming: Bluetooth wireless audio streaming,Primary display size: 13.4 inch primary display,Primary display touchscreen: Primary monitor touchscreen,Handsfree: Bluetooth handsfree wireless device connectivity,Engine Block Heater,Exhaust Brake,220-Amp Alternator - Includes Alternator Type: Alternator,Duramax 6.6L Turbo-Diesel V8 Engine - Includes 10-Speed Automatic Transmission,Transmission: Allison 10-speed automatic,Overdrive transmission,Lock-up transmission,Transmission electronic control,Transmission Type: Automatic,Dual Heavy-Duty 70 Amp Battery,Battery type: Dual lead acid batteries,Battery run down protection,Accessory power: Retained accessory power,Engine Location: Front mounted engine,Fuel Type: Diesel,Ignition: Compression ignition system,Engine Mounting direction: Longitudinal mounted engine,Engine block material: Iron engine block,Cylinder head material: Aluminum cylinder head,Emissions: Federal emissions,DEF fluid gauge: Diesel exhaust fluid (def) gauge,Low level warnings: Low level warning for oil,coolant,fuel,washer fluid,brake fluid and diesel exhaust fluid (DEF),Engine: Duramax 6.6L V-8 diesel direct injection,intercooled turbo,diesel,engine with 470HP,Engine Short: Duramax 6.6L V-8,Engine Configuration: Duramax V8,Compressor: Intercooled turbo,LT305/70R18-126/123R 35" Mud Terrain Tires - Includes LT305/70R18-126/12R 35" Mud Terrain Spare Tire,Tires: LT305/70RR18 MT BSW front and rear tires,18" Machined Aluminum Wheels with High Gloss Black Accents,Fleet Customer Powertrain Limited Warranty - Includes Powertrain warranty: 60 month/100,000 miles (FLT),Roadside warranty: 60 month/100,000 miles (FLT)

Additional Information

Engine cooler: Engine oil cooler,Radiator,Powertrain type: ICE,Selectable mode transmission,Transmission oil cooler,Drive type: Four-wheel drive,Traction control: All-speed ABS and driveline traction control,Suspension ride type front: Independent front suspension,Suspension type front: Short and long arm front suspension,Front anti-roll: Front anti-roll bar,Springs front: Front torsion springs,Suspension ride type rear: Rigid axle rear suspension,Springs rear: Rear leaf springs,Rear Springs: Heavy-duty rear springs,Speed sensitive steering: Digital Steering Assist speed sensitive power steering,Steering: Hydraulic power-assist steering system,Steering type: Re-circulating ball steering,Ventilated brakes: Front and rear ventilated disc brakes,ABS Brakes: Four channel ABS brakes,Electronic parking brake,Driver selectable steering effort,Suspension type rear: Leaf spring rear suspension,Tailpipe: Stainless steel single exhaust,Rear locking differential: Driver selectable rear locking differential,Sequential shift control,Locking hub control: Auto locking hub control,Electronic stability control: Electronic stability control system with anti-roll,Brake type: 4-wheel disc brakes,ABS Brakes: 4-wheel antilock (ABS) brakes,Convex spotter: Driver and passenger convex spotter mirrors,Headlight type: Projector beam headlights,Headlights: LED low and high beam headlights,Auto headlights: Auto on/off headlight control,Running lights: LED daytime running lights,Multiple headlights: Multiple enclosed headlights,Delay off headlights: Delay-off headlights,High mount stop light: High mounted center stop light,Perimeter approach lighting: Remote activated perimeter approach lighting,LED brake lights,Front impact airbag driver: Driver front impact airbag,Front side impact airbag driver: Seat mounted side impact driver airbag,Overhead airbags: Curtain first and second-row overhead airbags,Front impact airbag passenger: Passenger front impact airbag,Front side impact airbag passenger: Seat mounted side impact front passenger airbag,Occupancy sensor: Airbag occupancy sensor,Number of airbags: 6 airbags,3-point seatbelt: Rear seat center 3-point seatbelt,Seatbelt pretensioners: Front seatbelt pretensioners,Illuminated entry,Instrumentation display: Digital/analog instrumentation display,Configurable instrumentation gauges,Low tire pressure warning: Tire specific low air pressure warning,Immobilizer,Vehicle tracker: Stolen Vehicle Assistance vehicle tracker with vehicle slowdown,Restricted driving mode/alerts: Teen Driver restricted driving mode/alerts,Hill start assist,Seatbelt pretensioners number: 2 seatbelt pre-tensioners,Child door locks: Manual rear child safety door locks,Turn signal in door mirrors: Turn signal indicator in door mirrors,Fog lights: LED front fog lights,Speed control: Off-road speed control,Gauge cluster display size (inches): Gauge cluster display size: 12.30,Interior courtesy lights: Fade interior courtesy lights,Remote panic alarm,Cab mounted cargo light,Skid plate: 3 underbody skid plates,Body panels: Galvanized steel/aluminum body panels with side impact beams,Side steps: Illuminated power side steps,Number of doors: 4 doors,Bed-rail protectors: Pickup bed-rail protectors,Bumpers front: Black front bumper,Tow hooks front: 2 front tow hooks,Bumpers rear: Black rear bumper,Fenders: Black fender flares,Window Trim: Black side window trim,Door handle material: Black door handles,Paint: Non-metallic paint,Special paint: Monotone paint,Wheel covers: Chrome hub wheel covers,Spare tire location: Crank-down spare tire,Door mirror type: Power extendable trailer mirrors,Exterior mirror spot lights: Exterior mirror LED spot lights,Towing wiring harness: Trailer wiring harness,Towing class: Class IV tow rating,Towing hitch: Trailer hitch,Towing brake controller: Trailer brake controller,Towing trailer sway: Trailer sway control,Towing hitch light: Trailer hitch light,Front splash guards,Rear bumper step,Rear splash guards,Door mirror style: Black door mirrors,Bumper insert: Dark chrome front bumper insert,Bumper rub strip front: Black front bumper rub strip,Passenger doors rear left: Conventional left rear passenger door,Door mirrors: Power door mirrors,Rear cargo door: MultiPro Tailgate tailgate,Heated door mirrors: Heated driver and passenger side door mirrors,Boxside steps: BedStep integrated side steps,Passenger doors rear right: Conventional right rear passenger door,Visor driver mirror: Driver visor mirror,Visor illuminated driver mirror: Illuminated driver visor mirror,Visor passenger mirror: Passenger visor mirror,Visor illuminated passenger mirror: Illuminated passenger visor mirror,Rearview mirror: Auto-dimming rear view mirror,Rear seat direction: Front facing rear seat,Overhead console: Mini overhead console,Glove box: Locking glove box,Number of beverage holders: 8 beverage holders,Seatback storage pockets: 2 seatback storage pockets,Door bins front: Driver and passenger door bins,Door bins rear: Rear door bins,Under seat tray rear: Rear under seat tray,Cruise control: Cruise control with steering wheel mounted controls,Adaptive cruise control,Driver foot rest,Door locks: Power door locks with 2 stage unlocking,Keyfob keyless entry,All-in-one key: All-in-one remote fob and ignition key,Auto door locks: Auto-locking doors,Auto-dimming door mirror driver: Auto-dimming driver side mirror,Tailgate control: Tailgate/power door lock,Keyfob cargo controls: Keyfob trunk control,Keyfob window controls: Keyfob window control,Tachometer,Oil pressure gauge,Engine/electric motor temperature gauge,Voltmeter,Inclinometer,Transmission temperature gauge: Transmission fluid temperature gauge,Engine hour meter,Clock: Digital clock,Compass,Temperature display: Exterior temperature display,Folding door mirrors: Power folding door mirrors,Engine temperature warning,Battery charge warning,Key in vehicle warning,Door ajar warning,Turn signal warning: Turn signal on warning,Oil pressure warning,Transmission fluid temperature warning: Transmission fluid temp warning,Brake pad warning: Brake pad wear indicator,Rear seat check warning: Rear Seat Reminder rear seat check warning,Trip computer,First-row windows: Power first-row windows,Second-row windows: Power second-row windows,Wipers: Variable intermittent front windshield wipers,Easy lift tailgate: EZ Lift,Easy lower tailgate: EZ Lower,Beverage holders rear: Rear beverage holders,Auto-dimming door mirror passenger: Auto-dimming passenger side mirror,Built-in virtual assistant: Google Built-In built-in virtual assistant,Driver information center,Day/Night rearview mirror,Front reading lights,Rear reading lights,Variable panel light: Variable instrument panel light,Headlights on reminder,Trip odometer,Weight capacity alert: GCW Alert weight capacity alert,Integrated tailgate step,Full gauge cluster screen,Seating capacity: 5,Front head restraints: Height adjustable front seat head restraints,Front head restraint control: Manual front seat head restraint control,Rear seats fixed or removable: Fixed rear seats,Rear seats: Split-bench rear seat,Rear seat folding position: Fold-up rear seat cushion,Folding rear seats: 60-40 folding rear seats,Rear head restraints: Height adjustable rear seat head restraints,Rear head restraint control: Manual rear seat head restraint control,Rear head restraint control: 2 rear seat head restraints,Front seatback upholstery: Plastic front seatback upholstery,Door trim insert: Vinyl door trim insert,Headliner material: Cloth headliner material,Headliner coverage: Full headliner coverage,Floor covering: Full carpet floor covering,Panel insert: Aluminum instrument panel insert,Gearshifter material: Urethane gear shifter material,Door panel insert: Aluminum and sim carbon fiber door panel insert,Console insert material: Chrome console insert,Interior accents: Chrome interior accents,Rear seat upholstery: Vinyl rear seat upholstery,Rear seatback upholstery: Carpet rear seatback upholstery,Number of memory settings: 2 memory settings,Climate control: Automatic climate control,Air conditioning: Yes,Dual-zone front climate control,Rear under seat ducts: Rear under seat climate control ducts,Rear console climate control ducts,Steering wheel material: Leather steering wheel,Heated steering wheel,Armrests rear: Rear seat center armrest,Floor coverage: Full floor coverage,Cabback insulator,Seek scan,Aux input jack: Auxiliary input jack,External memory: Premium GMC Infotainment System external memory control,Internet radio capability,Satellite trial: 3 month satellite trial subscription,Amplifier,Antenna: Fixed audio antenna,Number of first-row screens: 2 total number of 1st row displays,Wireless speaker number: Kicker MultiPro Sound System 2 wireless speakers,Speakers number: 12 speakers,Exterior speakers: 2 exterior speakers,Turn-by-turn nav: OnStar Turn-by-Turn Navigation,Emergency SOS Capable: OnStar vehicle integrated emergency SOS system,Internet access: Wi-Fi Hotspot capable mobile hotspot internet access,Mobile app access: MyGMC Mobile App mobile app access,Basic warranty: 36 month/36,000 miles,Corrosion perforation warranty: 72 month/100,000 miles,Maintenance warranty: 12 month/unlimited,Preferred Equipment Group 4SG - Includes Trailer Side Blind Zone Alert,SiriusXM with 360L Trial Subscription,Power Sliding Rear Window with Defogger,Rear window defroster,Rear windshield: Power rear windshield,Safety Alert Seat,Ultrasonic Front and Rear Park Assist,Trailer Cam Provisions and Trailer Viewing Software,Electric Rear-Window Defogger,Gloss Black Header Grille and Grille Insert Bars,Unauthorized Entry Theft-Deterrent System,Inside Rearview Auo-Dimming Rear Camera Mirror,Front Rain-Sensing Wipers,120-Volt Instrument Panel Power Outlet,LED Smoked Amber Roof Marker Lamps,Heated Driver and Front Outboard Passenger Seats,Wireless Charging,Front Premium Floor Liners with Removable Carpet Insert,Rear Premium Floor Liners with Removable Carpet Insert,OnStar Services Capable,Heated 2nd Row Outboard Seats,Power Front Passenger Windows with Express Up/down,One-touch down window: Front and rear one-touch down windows,One-touch up window: Driver and passenger one-touch up windows,HD Surround Vision,Front camera: Front mounted camera with washer,Right camera: Right side camera,Left camera: Left side camera,Rear camera: HD Rear Vision Camera w/Hitch View rear mounted camera,Camera: HD Surround Vision w/Hitch View aerial view camera,Ventilated Driver and Front Passenger Seats,Manual Tilt-Wheel/telescoping Steering Column,Steering wheel tilt: Manual tilting steering wheel,Steering wheel telescopic: Manual telescopic steering wheel,Power Sunroof,Multicolor 15" Diagonal Head-Up Display,Head up display: Head-up display,Speedometer: Redundant digital speedometer,Keyless Open and Start,Fob engine controls: Keyless Open/Keyless Start with hands-free access and push button start,Ignition type: Push-button,Bose Premium Series 12-Speaker System,Speakers: Bose Performance Series speakers,Digital signal processor: Bose Centerpoint Surround digital signal processor,Noise cancellation: AudioPilot active noise cancellation,Push Button Start,LED Cargo Area Lighting,Remote Vehicle Starter System,Keyfob remote start,Smart device remote start,Hill Descent Control,Floor-Mounted Center Console,Beverage holders: Front beverage holders,Floor console: Full floor console,Floor console storage: Covered floor console storage,Armrests front center: Front seat center armrest,Bed View Camera with Two Trailer Camera Provisions,Trailer Tire Pressure Monitor Sensors,Sierra HD Pro Safety,Forward Collision Alert,Following Distance Indicator,Front Pedestrian Braking,Buckle to Drive,Automatic Emergency Braking,Brake assist system: Automatic Emergency Braking predictive brake assist system,IntelliBeam Automatic High Beam On/off,Lane Departure Warning,Wireless Phone Projection,2 USB Ports,Rear Cross Traffic Alert,2 Charge/data USB Ports Inside Center Console,Steering Wheel Audio Controls,2 Charge-Only Rear USB Ports,Universal Home Remote,120-Volt Bed Mounted Power Outlet,2-Speed Active Transfer Case,4WD type: AutoTrac part and full-time 4WD,Transfer case: Electronic transfer case shift,Two-Speed Transfer Case,Deep-Tinted Glass,Spray-On Pickup Bedliner with GMC Logo,ProGrade Trailering System,In-Vehicle Trailering System App,Vehicle and trailer reverse assist: Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only,Trailer light test,Trailer light malfunction warning,Trailer theft alarm,Hitch Guidance with Hitch View,Vehicle to trailer hitching assist: Hitch Guidance vehicle to trailer hitching assist,Rear Wheelhouse Liners,16-Way Power Driver Seat Adjuster with Lumbar - Includes Driver seat direction: Driver seat with 12-way directional controls,Driver lumbar: Driver seat with 4-way power lumbar,Power driver seat controls: Driver seat power reclining,lumbar support,seatback side bolster support,cushion tilt,fore/aft control and height adjustable control,Massaging driver seat,Front Bucket Seats - Includes 16-Way Power Passenger Seat Adjuster with Lumbar,Passenger seat direction: Front passenger seat with 12-way directional controls,Front passenger lumbar: Front passenger seat with 4-way power lumbar,Power passenger seat controls: Passenger seat power reclining,lumbar support,seatback side bolster support,cushion tilt,fore/aft control and height adjustable control,Massaging front passenger seat,Full Grain Leather Seat Trim,Driver Memory,Winter Grille Cover,Pickup Box,Capped Fuel Fill,11,350 lbs (5,148 Kg) GVWR,3.42 Axle Ratio,Off-Road Suspension - Includes Suspension: Off-road ride suspension,Shock absorbers: Multimatic DSSV gas-pressurized shock absorbers,AM/FM Stereo with Premium GMC Infotainment System - Includes Voice activated audio: Voice activated audio controls,Wireless streaming: Bluetooth wireless audio streaming,Primary display size: 13.4 inch primary display,Primary display touchscreen: Primary monitor touchscreen,Handsfree: Bluetooth handsfree wireless device connectivity,Engine Block Heater,Exhaust Brake,220-Amp Alternator - Includes Alternator Type: Alternator,Duramax 6.6L Turbo-Diesel V8 Engine - Includes 10-Speed Automatic Transmission,Transmission: Allison 10-speed automatic,Overdrive transmission,Lock-up transmission,Transmission electronic control,Transmission Type: Automatic,Dual Heavy-Duty 70 Amp Battery,Battery type: Dual lead acid batteries,Battery run down protection,Accessory power: Retained accessory power,Engine Location: Front mounted engine,Fuel Type: Diesel,Ignition: Compression ignition system,Engine Mounting direction: Longitudinal mounted engine,Engine block material: Iron engine block,Cylinder head material: Aluminum cylinder head,Emissions: Federal emissions,DEF fluid gauge: Diesel exhaust fluid (def) gauge,Low level warnings: Low level warning for oil,coolant,fuel,washer fluid,brake fluid and diesel exhaust fluid (DEF),Engine: Duramax 6.6L V-8 diesel direct injection,intercooled turbo,diesel,engine with 470HP,Engine Short: Duramax 6.6L V-8,Engine Configuration: Duramax V8,Compressor: Intercooled turbo,LT305/70R18-126/123R 35" Mud Terrain Tires - Includes LT305/70R18-126/12R 35" Mud Terrain Spare Tire,T...