2026 GMC Sierra 2500HD AT4 Crew Cab 4WD

GMC Sierra 2500HD AT4 Summit White Off-Road Heavy-Duty Capability with Premium Refinement GMC Dealer of the Year 16 years in a row! Everett Buick GMC is Family Owned and Customer Friendly. Opened in 2006 by Dwight and Susie Everett, the dealership has grown into the #1 Buick GMC dealership in America. We invite you to come experience the Everett Difference. CALL 501-315-7100 AND DISCOVER THE DIFFERENCE! @ Everett Buick GMC Finished in Summit White, this 2026 GMC Sierra 2500HD AT4 combines serious off-road engineering with premium comfort, advanced trailering technology, and heavy-duty Duramax diesel performance. Performance & Capability 10-Speed Automatic transmission with 4WD Duramax 6.6L V8 Turbo-Diesel engine 2-Speed Active Transfer Case 3.73 rear axle ratio X31 Off-Road Package with enhanced suspension tuning Hill Descent Control Heavy-Duty 80 Amp battery Integrated Trailer Brake Controller Hitch Guidance with Hitch View Trailer Camera Provisions Trailer Side Blind Zone Alert Gooseneck/5th Wheel prep capability Off-road suspension system Front and rear wheel independent suspension Interior Comfort & Luxury Jet Black leather-appointed seating with perforated trim Heated and ventilated front seats Heated rear outboard seats Heated steering wheel 10-way power driver & passenger seats with lumbar support Driver memory seat system Dual-zone automatic climate control Front bucket seats with center console Power sunroof Power sliding rear window with defogger Premium floor liners with removable inserts Technology & Infotainment Premium GMC Infotainment System with Navigation Wireless Apple CarPlay & Android Auto HD Surround Vision camera system Rear camera mirror system Multicolor 15'' diagonal head-up display Bose premium 7-speaker audio system Wireless charging pad Remote start & keyless entry system In-vehicle trailering app OnStar connected services capability Safety & Driver Assistance Forward Collision Alert Automatic Emergency Braking Front Pedestrian Braking Lane Departure Warning System Rear Cross Traffic Alert Rear Pedestrian Detection Safety Alert Seat IntelliBeam automatic high beams Ultrasonic Front & Rear Park Assist Following Distance Indicator Electronic Stability Control Exterior Features 20'' high gloss black aluminum wheels Gloss black header grille with insert bars Body-color bumpers with AT4 accents Red recovery hooks Spray-on bedliner with GMC logo LED cargo box lighting Deep-tinted glass Rain-sensing wipers LED signature lighting package Power heated mirrors with auto-dimming The Summit White Sierra 2500HD AT4 delivers a strong balance of off-road capability, diesel torque, and premium interior comfort built for drivers who need serious capability without sacrificing refinement.

Additional Information

4-Wheel Disc Brakes|A/C|ABS|ALTERNATOR 220 AMP|AM/FM Stereo|ASSIST STEPS POWER RETRACTABLE BLACK includes LED lighting|AT4 PREFERRED EQUIPMENT GROUP includes standard equipment|AT4 PREFERRED PACKAGE includes (UG1) Universal Home Remote (A48) rear sliding power window and (U01) Roof Marker Lamps|AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package (CF5) power sunroof (CWM) Technology Package and (VXW) AT4 high clearance step LPO|AUDIO SYSTEM 13.4'' DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE includes color touch-screen multi-touch display AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones (STD)|Adaptive Cruise Control|Adjustable Steering Wheel|Aerial View Display System|Aluminum Wheels|Auto-Dimming Rearview Mirror|Automatic Highbeams: |Auxiliary Audio Input: |Auxiliary Audio Input|Back-Up Camera: |Bed Liner|Blind Spot Monitor|Bluetooth Connection: |Bluetooth Connection|Bucket Seats|Climate Control|Conventional Spare Tire|Cooled Front Seat(s)|Cross-Traffic Alert|Cruise Control|Daytime Running Lights: |Daytime Running Lights|Driver Adjustable Lumbar|Driver Air Bag|Driver Restriction Features|ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)|ENGINE BLOCK HEATER|EXHAUST BRAKE|Floor Mats: |Fog Lamps|Four Wheel Drive|Front Collision Mitigation: |Front Collision Mitigation|Front Collision Warning: |Front Collision Warning|Front Head Air Bag|Front Side Air Bag|GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).|GVWR 11 550 LBS. (5239 KG)|Heated Front Seat(s): |Heated Mirrors|Heated Rear Seat(s)|Heated Steering Wheel|Integrated Tailgate Step|Integrated Turn Signal Mirrors|Intermittent Wipers|JET BLACK WITH KALAHARI ACCENTS PERFORATED FRONT LEATHER SEAT TRIM|Keyless Entry|Keyless Start: |LAMPS SMOKED AMBER ROOF MARKER (LED)|LICENSE PLATE KIT FRONT INCANDESCENT LIGHTING|Lane Departure Warning: |Leather Seats|Locking/Limited Slip Differential|MP3 Capability: |MP3 Capability|MULTICOLOR 15'' DIAGONAL HEAD-UP DISPLAY|Mirror Memory|Multi-Zone A/C|Navigation System: |Passenger Adjustable Lumbar|Passenger Air Bag: Sensor|Power Door Locks: |Power Driver Seat|Power Folding Mirrors|Power Mirror(s)|Power Passenger Seat|Power Steering|Power Windows: |Power Windows|Premium Sound System|Privacy Glass|REAR AXLE 3.42 RATIO|REAR CAMERA MIRROR inside rearview auto-dimming with full camera display|Rain Sensing Wipers|Rear Bench Seat|Rear Defrost|Rear Head Air Bag|Rear Parking Aid|Remote Engine Start|Requires Subscription|Requires Subscription: |Running Boards/Side Steps|SEATS FRONT BUCKET with center console (STD)|SUMMIT WHITE|SUNROOF POWER|Satellite Radio|Seat Memory|Security System|Smart Device Integration: |Stability Control|Steering Wheel Audio Controls|TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15'' Diagonal Head-Up Display|TIRES LT275/65R20 E 126/123 BF GOODRICH OFF-ROAD T/A KO3