The 2026 GMC Sierra 1500 AT4 Crew Cab 4WD blends premium refinement with serious off-road capability and V8 performance. Finished in Sterling Metallic with a Jet Black and Kalahari interior, this AT4 is powered by the commanding 6.2L Ecotec3 V8 paired with a 10-speed automatic transmission, delivering strong acceleration, confident towing capability, and unmistakable presence.
Equipped with the AT4 Premium Package and Technology Package, this Sierra raises the bar for both comfort and innovation.
Performance & Capability
Engineered for rugged terrain and heavy-duty demands.
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 and Skid Plates
Hill Descent Control
Trailer Brake Controller
120V Power Outlet in Cargo Bed & Instrument Panel
Active Exhaust System
Interior Comfort & Convenience
Premium materials meet practical durability in the AT4 cabin.
Heated & Ventilated Front Bucket Seats
Heated Second-Row Outboard Seats
10-Way Power Front Seats
Driver Seat & Mirror Memory
Heated Wrapped Steering Wheel
Power Tilt & Telescoping Steering Column
Adaptive Cruise Control
Wireless Charging
Bose Premium Sound System
Premium Floor Liners
Power Sunroof
Rear Sliding Power Window
Universal Home Remote
Technology & Connectivity
Advanced displays and camera systems keep you informed and in control.
13.4" GMC Premium Infotainment Touchscreen with Google Built-In
Wireless Apple CarPlay & Android Auto
12.3" Digital Driver Information Centre
In-Vehicle Trailering App
15" Multicolor Head-Up Display
Rear Camera Mirror
Bed View Camera
OnStar Basics (Up to 8 Years)
SiriusXM Audio
Safety & Driver Assistance
Comprehensive GMC Pro Safety technologies provide confidence on and off the road.
Automatic Emergency Braking
Forward Collision Alert
Front Pedestrian Braking
Lane Keep Assist with Lane Departure Warning
IntelliBeam Automatic High Beams
Front & Rear Park Assist
Trailer Side Blind Zone Alert
Rear Cross Traffic Braking
Rear Pedestrian Alert
HD Surround Vision
Safety Alert Seat
Teen Driver Mode
Tire Pressure Monitoring with Tire Fill Alert
Exterior Highlights
Bold AT4 styling with functional trail-ready details.
20" Machined Aluminum Wheels with Carbon Grey Accents
Goodyear Wrangler Territory MT Tires
Spray-On Bedliner
GMC MultiPro Tailgate
LED Cargo Area Lighting
Power Folding & Heated Mirrors with Driver-Side Auto-Dimming
LED Headlamps, Tail Lamps & Fog Lamps
Rain-Sensing Wipers
Rear Window Defogger
With commanding V8 performance, factory lift suspension, premium interior features, and advanced technology packages, this 2026 Sierra AT4 delivers capability and refinement in equal measure.
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.
