The 2026 GMC Sierra 1500 AT4 Crew Cab 4WD is built for drivers who want maximum power, true off-road hardware, and high-end comfort in one bold package. Finished in Summit White with a striking Jet Black / Kalahari interior, this AT4 delivers a rugged exterior with a refined, luxury-grade cabin.

Under the hood sits the formidable 6.2L EcoTec3 V8, paired with a smooth 10-speed automatic transmission, delivering exceptional horsepower, torque, and towing confidence. Add the AT4 2" factory lift, skid plates, and locking rear differential, and this Sierra is ready for trails, job sites, winter roads, and everything in between.

• 6.2L EcoTec3 V8 Engine

• 10-Speed Automatic Transmission

• 2-Speed AutoTrac Transfer Case

• Automatic Locking Rear Differential

• AT4 Off-Road Suspension with 2" Factory Lift & Monotube Shocks

• Skid Plates & Hill Descent Control

• Trailer Brake Controller

• 120-Volt Power Outlets in Cab & Bed

Built for comfort on long drives and tough terrain:

• Heated & Ventilated Front Bucket Seats

• Heated Second-Row Outboard Seats

• 10-Way Power Front Seats with Memory

• Power Tilt & Telescoping Steering Column

• Heated Leather-Wrapped Steering Wheel

• Wireless Phone Charging

• Bose Premium Audio System

• Adaptive Cruise Control

• Premium Floor Liners

A modern digital command centre:

• 13.4" GMC Premium Infotainment Touchscreen with Google Built-In & Navigation

• Wireless Apple CarPlay & Android Auto

• 12.3" Digital Driver Information Centre

• In-Vehicle Trailering App

• OnStar Basics (up to 8 years)

• SiriusXM Audio with Trial

• Keyless Open & Remote Start

Adds next-level visibility:

• 15" Multicolour Head-Up Display

• Rear Camera Mirror

• Bed View Camera

Includes GMC Pro Safety Plus:

• Automatic Emergency Braking

• Forward Collision Alert

• Front Pedestrian Braking

• Lane Keep Assist with Lane Departure Warning

• HD Surround Vision

• Trailer Side Blind Zone Alert

• Rear Cross-Traffic Braking & Rear Pedestrian Alert

• Front & Rear Park Assist

• Safety Alert Seat

• 20" Machined Aluminum Wheels with Carbon Grey Accents

• Spray-On Bedliner

• GMC MultiPro Tailgate

• Power-Folding Heated Mirrors with Auto-Dimming Driver Side

• LED Headlamps, Tail Lamps & Fog Lamps

• LED Cargo Box Lighting

• Rain-Sensing Wipers

• Power Sunroof

• Goodyear Wrangler Territory MT Tires

With its 6.2L V8 muscle, factory AT4 lift, premium luxury interior, and industry-leading safety and trailering technology, the 2026 GMC Sierra 1500 AT4 is the ultimate truck for drivers who want unstoppable performance without sacrificing comfort or style.

2 Year/24,000 kilometer* Complimentary Oil Changes (2 total)

3 Year/60,000 kilometer* Base Warranty Coverage

5 Year/100,000 kilometer* Powertrain Component Warranty Coverage

5 Year/100,000 kilometer* Courtesy Transportation and 24/7 Roadside Assistance

6 Year/160,000 kilometer* Sheet Metal (Rust Through) Perforation Warranty Coverage

*Whichever Comes First.

Price Includes HD Flaps & 6 Tube Steps.

Price Includes Dealer Fee.

Price Excludes PST & GST.

Financing Options Available, Call For More Details.

*While every reasonable effort is made to ensure the accuracy of this information, we are not responsible for any error or omissions contained on these pages. Please verify any information in question with Chapman Motors Ltd.