2026 GMC Sierra 3500HD

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

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2026 Sierra 3500HD

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Vehicle Overview

Rugged GMC Acadia AT4 in Onyx Black

Meet the 2026 AT4 — black on black, built to turn heads and tackle anything. Rugged capability comes standard with 4WD, locking differential, ABS, traction and stability control, LT275/65R20 tires and a full‑size spare. Inside you’ll find premium comfort and tech: leather heated seats, heated leather steering wheel, multi‑adjustable power seats with lumbar, dual‑zone climate, keyless entry with remote start/climate control, and a punchy AM/FM system with subwoofer. Safety and convenience are covered too — vehicle anti‑theft, child door locks, a full suite of airbags, electronic parking aid and tire‑pressure monitoring. Backed by a 36/36 basic, 60/60 powertrain and 72/100 rust warranty — stop by today and take this black beauty for a test drive.
  • Checkmark Bold Presence
  • Checkmark Head-Turning Black Beauty
  • Checkmark Beast Looks Smooth Ride
  • Checkmark Commanding Road Confidence

Vehicle Equipment

  • Checkmark
    4WD/AWD
  • Checkmark
    Air Conditioning
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    Cruise Control
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    Leather Seat
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    Front Heated Seat
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
Subwoofer
Driver Multi-Adjustable Power 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
Disc
Front Suspension
IND
Rear Suspension
IND
Front Spring Type
Coil
Rear Spring Type
Coil
Tires
Lt275/65r20
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
7,417 Lbs
Overall Length
250.80 In.
Wheelbase
159.00 In.
Ground Clearance
11.20 In.
Overall Length
250.80 In.
Standard Seating
5

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