Onyx Black

Body panels Galvanized steel/aluminum body panels with side impact beams

License plate front bracket Front license plate bracket

Bumper rub strip front Black front bumper rub strip

Door handle material Body-colored door handles

Spare tire Full-size spare tire with steel wheel

Spare tire location Crank-down spare tire

Towing capability Trailer towing capability

Towing wiring harness Trailer wiring harness

Towing brake controller Trailer brake controller

Bed-rail protectors Pickup bed-rail protectors

Door mirror type Power extendable trailer mirrors

Exterior mirror spot lights Exterior mirror LED spot lights

Tires LT275/65SR20 AT BSW front and rear tires

Wheels 20 x 8.5-inch front and rear machined w/painted accents aluminum wheels

Bumper insert Dark chrome front bumper insert

First-row sunroof First-row sliding and tilting glass sunroof with express open/close activation  sunshade

Tire sensors GMC ProGrade Trailering System trailer tire pressure sensors

Vehicle and trailer reverse assist Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only

Vehicle to trailer hitching assist Hitch Guidance with Hitch View vehicle to trailer hitching assist

3-point seatbelt Rear seat center 3-point seatbelt

Delay off headlights Delay-off headlights

Front impact airbag driver Driver front impact airbag

Front impact airbag passenger Passenger front impact airbag

Front side impact airbag driver Seat mounted side impact driver airbag

Front side impact airbag passenger Seat mounted side impact front passenger airbag

High mount stop light High mounted center stop light

Interior courtesy lights Fade interior courtesy lights

Low tire pressure warning Tire specific low air pressure warning

Auto headlights Auto on/off headlight control

Child door locks Manual rear child safety door locks

Running lights LED daytime running lights

Seatbelt pretensioners Front seatbelt pretensioners

Seatbelt pretensioners number 2 seatbelt pre-tensioners

Headlights LED low and high beam headlights

Multiple headlights Multiple enclosed headlights

Overhead airbags Curtain first and second-row overhead airbags

Parking sensors Front and rear parking sensors

Electronic stability control Electronic stability control system with anti-roll

Turn signal in door mirrors Turn signal indicator in door mirrors

Forward collision warning Forward collision mitigation with pedestrian impact prevention

Pedestrian detection Pedestrian impact prevention

Video rearview mirror Video-feed rearview mirror

Instrumentation display Digital/analog instrumentation display

Convex spotter Driver and passenger convex spotter mirrors

Restricted driving mode Teen Driver restricted driving mode

Perimeter approach lighting Remote activated perimeter approach lighting with puddle lights

Brake assist system Automatic Emergency Braking predictive brake assist system

Gage cluster display size (inches) Gage cluster display size: 12.30

Front camera Front mounted camera with washer

Primary display touchscreen Primary monitor touchscreen

Satellite trial 3 month satellite trial subscription

Internet access Mobile hotspot internet access

Smart device integration Smart device wireless mirroring

Handsfree Handsfree wireless device connectivity

External memory Premium GMC Infotainment System external memory control

Voice activated audio Premium GMC Infotainment System voice activated audio controls

Wireless streaming Wireless audio streaming

Mobile app access MyGMC Mobile App mobile app access

Number of first-row screens 2 total number of 1st row displays

Primary display size 13.4 inch primary display

Cylinder head material Aluminum cylinder head

Engine Mounting direction Longitudinal mounted engine

Locking hub control Auto locking hub control

Rear locking differential Automatic rear locking differential

Traction control All-speed ABS and driveline traction control

Transfer case Electronic transfer case shift

Steering Hydraulic power-assist steering system

Steering type Re-circulating ball steering

Steering type number of wheels 2-wheel steering system

Suspension ride type front Independent front suspension

Suspension ride type rear Rigid axle rear suspension

Suspension type front Short and long arm front suspension

Ventilated brakes Front and rear ventilated disc brakes

Suspension type rear Leaf spring rear suspension

Speed sensitive steering Digital Variable Steering Assist speed sensitive power steering

Engine Duramax 6.6L V-8 diesel direct injection, intercooled turbo, diesel, engine with 470HP

Climate control Automatic climate control

Driver lumbar Driver seat with 2-way power lumbar

Floor covering Full carpet floor covering

Front head restraint control Manual front seat head restraint control

Front head restraints Height adjustable front seat head restraints

Front passenger lumbar Front passenger seat with 2-way power lumbar

Front seat upholstery Leather front seat upholstery

Front seatback upholstery Plastic front seatback upholstery

Headliner coverage Full headliner coverage

Headliner material Cloth headliner material

Heated front seats Heated driver and front passenger seats

Armrests front center Front seat center armrest

Driver seat direction Driver seat with 8-way directional controls

Gearshifter material Urethane gear shifter material

Power driver seat controls Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control

Rear head restraint control 2 rear seat head restraints

Rear head restraint control Manual rear seat head restraint control

Rear head restraints Height adjustable rear seat head restraints

Rear seatback upholstery Carpet rear seatback upholstery

Rear under seat ducts Rear under seat climate control ducts

Number of memory settings 2 memory settings

Passenger seat direction Front passenger seat with 8-way directional controls

Power passenger seat controls Passenger seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control

Rear seats fixed or removable Fixed rear seats

Steering wheel telescopic Manual telescopic steering wheel

Steering wheel material Leatherette steering wheel

Steering wheel tilt Manual tilting steering wheel

Cooled front seats Ventilated driver and front passenger seats

Rear seat upholstery Vinyl rear seat upholstery

Rear seat folding position Fold-up rear seat cushion

Panel insert Aluminum instrument panel insert

Floor mats Rubber front and rear floor mats with carpet inserts

Door panel insert Aluminum and sim carbon fiber door panel insert

Console insert material Chrome console insert

Folding rear seats 60-40 folding rear seats

All-in-one key All-in-one remote fob and ignition key

Auto-dimming door mirror driver Auto-dimming driver side mirror

Beverage holders rear Rear beverage holders

Cruise control Cruise control with steering wheel mounted controls

Door bins front Driver and passenger door bins

Door locks Power door locks with 2 stage unlocking

DEF fluid gage Diesel exhaust fluid (def) gage

First-row windows Power first-row windows

Floor console storage Covered floor console storage

Fob remote vehicle controls Keyfob remote engine start

Fob window controls Keyfob window control

Folding door mirrors Power folding door mirrors

Heated door mirrors Heated driver and passenger side door mirrors

Keyfob cargo controls Keyfob trunk control

Keyfob door locks Keyfob activated door locks

Corrosion perforation warranty 72 month/100,000 miles

One-touch down window Front and rear one-touch down windows

One-touch up window Driver and passenger one-touch up windows

Passenger doors rear left Conventional left rear passenger door

Passenger doors rear right Conventional right rear passenger door

Powertrain warranty 60 month/60,000 miles

Rear seat direction Front facing rear seat

Seatback storage pockets 2 seatback storage pockets

Second-row windows Power second-row windows

Service interval warning Service interval indicator

Number of beverage holders 8 beverage holders

Memory settings Memory settings include: door mirrors

Rearview mirror Auto-dimming rear view mirror

** SUNROOF, ** LEATHER, ** NAVIGATION, ** BACKUP CAMERA, ** REMOTE START, ** REAR PARK ASSIST, ** HEATED/COOLED SEATS, ** HEATED STEERING WHEEL, ** APPLE CARPLAY/ ANDROID AUTO, ** WIRELESS CHARGING, ** SPRAY IN BEDLINER, ** 5TH WHEEL PREP PACKAGE, ** LANE DEPARTURE, 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, AT4 Preferred Package, AT4 Premium Plus Package, Auto-Dimming Inside Rearview Mirror w/Camera, Bose Premium 7-Speaker Sound System, Gooseneck/5th Wheel Prep Package, HD Surround Vision, Keyless Open & Start, Off-Road High Clearance Step (LPO), Power Sunroof, Preferred Equipment Group 4SB, Push Button Start, Remote Vehicle Starter System, SiriusXM w/360L Trial Subscription, Snow Plow Prep/Camper Package, Spray-On Pickup Bedliner w/GMC Logo, Steering Wheel Audio Controls, Technology Package, Universal Home Remote, Wireless Charging, Wireless Phone Projection, X31 Off-Road Package.2025 GMC Sierra 3500HD AT4 Duramax 6.6L V8 Turbodiesel 10-Speed Automatic 4WDAlso included with every new vehicle we sell: LIFETIME ""NO FEAR"" WARRANTY, FIRST OIL CHANGE, and AT HOME COURTESY DELIVERY! Call us for full details! Our prices include current factory rebates exclude tax, title, license, $499 document service fee and may not be compatible with special financing such as 0% APR. We pride ourselves on honesty and integrity, but please note that mistakes or misprints due to human error are possible. Find out why our dealerships have won DealerRater.com DEALER OF THE YEAR a whopping 10 TIMES! Call, email, or live chat with one of our friendly sales professionals now to schedule your test drive!

2025 GMC Sierra 3500HD 4WD Crew Cab Standard Bed AT4