2026 GMC Sierra 2500HD

Condition New
Transmission Automatic
Drive Train Four-wheel Drive
Trim AT4
Engine Gasoline
6.6L V8
Brakes 4-Wheel Anti-Lock Brakes

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2026 GMC Sierra 2500HD

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Vehicle Overview

Bold GMC Yukon AT4, ready for anything

Meet the 2026 GMC AT4 — rugged capability wrapped in premium comfort. Built standard with 4WD, a locking differential, LT305/70R18 tires and 11.6" ground clearance, this truck is ready to take you off the beaten path while ABS, traction and stability control keep you secure on the way back. Step inside and you’ll notice real luxury: leather heated and cooled front seats with power lumbar, a heated leather steering wheel, power sunroof and a premium audio/navigation setup with subwoofer. Keyless entry, remote ignition with climate control and a full suite of airbags and vehicle anti-theft protection make it as practical and safe as it is comfortable. Generous interior dimensions, a full-size spare and strong factory coverage — 36/36 basic, 60/100 powertrain and 72/100 rust — mean peace of mind mile after mile. Stop by today for a test drive and see why the 2026 GMC AT4 is the perfect blend of work-ready toughness and everyday refinement.
  • Checkmark Bold, sleek presence
  • Checkmark Head-turning, bold silhouette
  • Checkmark Rugged yet refined
  • Checkmark Confident road presence

Vehicle Equipment

Standard Equipment
Child Safety Door Locks
Vehicle Anti-Theft
4WD/AWD
ABS Brakes
Locking Differential
Traction Control
Vehicle Stability Control System
Driver Airbag
Front Side Airbag
Front Side Airbag With Head Protection
Front Side Airbag With Head Protection
Passenger Airbag
Electronic Parking Aid
Keyless Entry
Remote Ignition
Air Conditioning
Separate Driver/Front Passenger Climate Controls
Cruise Control
Tachometer
Heated Steering Wheel
Leather Steering Wheel
Steering Wheel Mounted Controls
Telescopic Steering Column
Tire Pressure Monitor
Trip Computer
AM/FM Radio
Navigation Aid
Subwoofer
Driver Multi-Adjustable Power Seat
Front Cooled Seat
Front Heated Seat
Front Power Lumbar Support
Leather Seat
Passenger Multi-Adjustable Power Seat
Power Sunroof
Automatic Headlights
Daytime Running Lights
Full Size Spare Tire
Power Windows
Heated Exterior Mirror
Electrochromic Interior Rearview Mirror
Anti-Brake System
4-Wheel ABS
Steering Type
R&P
Front Brake Type
Disc
Rear Brake Type
Disc
Front Suspension
IND
Rear Suspension
IND
Front Spring Type
Coil
Rear Spring Type
Coil
Tires
Lt305/70r18
Front Headroom
43.00 In.
Rear Headroom
40.10 In.
Front Legroom
44.50 In.
Rear Legroom
43.40 In.
Front Shoulder Room
66.00 In.
Rear Shoulder Room
65.30 In.
Front Hip Room
61.20 In.
Rear Hip Room
60.20 In.
Curb Weight-automatic
7,502 Lbs
Overall Length
250.80 In.
Wheelbase
159.00 In.
Ground Clearance
11.60 In.
Overall Length
250.80 In.
Standard Seating
5

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