The 2026 GMC Sierra 1500 AT4 Crew Cab 4WD is engineered for drivers who want true off-road capability without giving up luxury or technology. Finished in stunning Sterling Metallic with a bold Jet Black / Kalahari interior, this AT4 delivers rugged presence with upscale refinement.

Power comes from the fuel-efficient yet torque-rich Duramax 3.0L Turbo-Diesel, paired with a smooth 10-speed automatic transmission. This combination delivers outstanding towing confidence, long-range highway efficiency, and effortless everyday driving.

With a factory 2" AT4 suspension lift, skid plates, locking rear differential, and advanced 4WD system, this Sierra is built to handle snow, trails, job sites, and towing with equal confidence.

• Duramax 3.0L Turbo-Diesel 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

• 120V Power Outlets (Cab & Bed)

• Goodyear Wrangler Territory MT Off-Road Tires

Designed for comfort on long drives and rough 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

• Premium Floor Liners

• Adaptive Cruise Control

• Rear Sliding Power Window

A fully digital, driver-focused cockpit:

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

• Wireless Apple CarPlay & Android Auto

• 12.3" Digital Driver Information Centre

• Bose Premium Sound System

• In-Vehicle Trailering App

• Keyless Open & Remote Start

• OnStar Basics (Up to 8 Years)

• 3-Year SiriusXM Subscription

Adds next-level visibility and control:

• 15" Multicolour Head-Up Display

• Rear Camera Mirror

• Bed View Camera

Equipped with GMC Pro Safety Plus:

• Automatic Emergency Braking

• Forward Collision Alert

• Front Pedestrian Braking

• Lane Keep Assist & Lane Departure Warning

• Trailer Side Blind Zone Alert

• Rear Cross Traffic Braking

• Rear Pedestrian Alert

• HD Surround Vision

• Safety Alert Seat

• Front & Rear Park Assist

• 20" Machined Aluminum Wheels with Carbon Grey Accents

• GMC MultiPro Tailgate

• Spray-On Bedliner

• LED Headlamps, Fog Lamps & Tail Lamps

• LED Cargo Area Lighting

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

• Rain-Sensing Wipers

• Power Sunroof

With its Duramax diesel efficiency, factory AT4 lift and off-road hardware, luxury interior, and industry-leading trailering and safety technology, the 2026 GMC Sierra 1500 AT4 4WD is the ultimate truck for drivers who demand strength, sophistication, and go-anywhere capability in one bold package.

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.