2026 GMC Sierra 1500

Condition New
MPG 21 - 17
Exterior White
Transmission Automatic
Drive Train Four-wheel Drive
Trim AT4
Engine Diesel
3L I6
Brakes 4-Wheel Anti-Lock Brakes

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2026 Sierra 1500

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Vehicle Overview

Summit White AT4: Bold, capable pickup

Introducing the 2026 AT4 in crisp White — where rugged capability meets premium comfort. Built to go off-road and look good doing it: 4WD with locking differential, LT275/65R18 tires, 11.1" ground clearance and a full-size spare give you confidence on any terrain. Step inside and enjoy leather-trimmed, multi-adjustable front seats with heating and cooling, a heated leather steering wheel, dual-zone climate with remote start, power sunroof and an intuitive navigation system backed by a subwoofer for premium sound. Safety is comprehensive — airbags all around, ABS, electronic brake assist, traction and stability control, tire pressure monitoring and vehicle anti-theft protection. Spacious crew-cab dimensions plus thoughtful tech like keyless entry, cruise control and steering-wheel controls make every drive comfortable and convenient. Backed by a 36/36k basic, 60/60k powertrain and 72/100k rust warranty, the 2026 AT4 is ready for work, play and everything in between. Ready for a test drive?
  • Checkmark Bold, head-turning stance
  • Checkmark Sleek, modern silhouette
  • Checkmark Powerful, commanding presence
  • Checkmark Beastly performance, refined

Vehicle Equipment

  • Checkmark
    Power Sunroof
  • Checkmark
    Vehicle Anti-Theft
Included Options
Power Sunroof
Standard Equipment
Child Safety Door Locks
Vehicle Anti-Theft
4WD/AWD
ABS Brakes
Electronic Brake Assistance
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
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
Drum
Front Suspension
IND
Rear Suspension
Live
Front Spring Type
Live
Rear Spring Type
Leaf
Tires
Lt275/65r18
Front Headroom
43.00 In.
Rear Headroom
40.10 In.
Front Legroom
44.50 In.
Rear Legroom
43.40 In.
Front Shoulder Room
64.50 In.
Rear Shoulder Room
64.00 In.
Front Hip Room
60.80 In.
Rear Hip Room
59.20 In.
Curb Weight-automatic
5,500 Lbs
Overall Length
232.90 In.
Wheelbase
148.00 In.
Ground Clearance
11.10 In.
Overall Length
232.90 In.
Standard Seating
5

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