GMC Sierra 3500Hd 2026

2026 GMC Sierra 3500HD AT4

AMVIC Licensed Dealer

Highlights

• 6.6L Duramax Turbo-Diesel V8 engine
• AT4 off-road suspension and 10-speed automatic transmission
• 20 black aluminum wheels and all-terrain tires
• Heated & ventilated front seats, heated second-row seats, power sunroof
• 13.4 GMC Infotainment system, 12 digital driver displays, multicolour Head-Up Display
• Rear camera mirror, Bose premium audio, HD Surround Vision, parking assist
• Gooseneck/5th Wheel Prep Package, trailer brake controller, adaptive cruise control
• Black onyx exterior with jet black/kalahari interior

Specifications

• Drivetrain: 4x4 (4WD)
• Trim: AT4
• Condition: New (Stock # T4394606)

Description
Finished in onyx black with a jet black/kalahari interior, this 2026 GMC Sierra 2500HD AT4 combines premium comfort with serious capability. Its 6.6L Duramax turbo-diesel V8 pairs with a 10-speed automatic transmission and four-wheel drive for confident performance. Inside, enjoy heated and ventilated front seats, heated second-row outboard seats, a heated steering wheel, a power sunroof, wireless charging, and a premium Bose sound system. The 13.4 GMC Infotainment touchscreen, 12 configurable digital driver display, and multicolour Head-Up Display keep essential information and entertainment within easy reach. Built for challenging terrain and demanding work, this AT4 features off-road suspension, skid plates, an automatic locking rear differential, Hill Descent Control, and a two-speed transfer case. Black 20 aluminum wheels, all-terrain tires, red front recovery hooks, and high-clearance off-road steps complete its rugged look. For towing confidence, it includes the Gooseneck/5th Wheel Prep Package, integrated trailer brake controller, Hitch View, trailer camera provisions, heated power trailering mirrors, and Trailer Side Blind Zone Alert. Additional technology includes HD Surround Vision, a Bed View Camera, adaptive cruise control, front and rear park assist, and advanced driver-assistance features.

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