2026 GMC Sierra 1500 AT4 

in Altona 

2026 GMC Sierra 1500 AT4 Crew Cab 4WD Duramax Diesel

The 2026 GMC Sierra 1500 AT4 Crew Cab 4WD with the Duramax 3.0L Turbo-Diesel is built for those who demand true off-road capability, premium comfort, and advanced technology. With its rugged AT4 styling, factory off-road suspension, and refined interior, this Sierra is ready to take on tough terrain while delivering smooth, efficient performance for everyday driving.

BOLD AT4 DESIGN & OFF-ROAD FUNCTIONALITY
» Sterling Metallic exterior with aggressive AT4 styling
» 20" machined aluminum wheels with carbon grey metallic accents
» All-terrain tires for enhanced off-road traction
» Red front recovery hooks and skid plates for added protection
» LED fog lamps with IntelliBeam automatic high beams
» Spray-on bedliner with LED cargo bed lighting
» GMC MultiPro tailgate with EZ Lift power lock and release
» CornerStep rear bumper for easy bed access
» Off-road high clearance steps (dealer installed)

INTERIOR COMFORT & REFINED UTILITY
» Jet Black/Kalahari interior with AT4-exclusive design
» Heated and ventilated front bucket seats
» Heated second-row outboard seats for added comfort
» Heated, wrapped steering wheel with power tilt and telescopic adjustment
» Power driver and passenger seats with lumbar support and memory settings
» Dual-zone automatic climate control system
» Power sliding rear window and rear seat storage package
» All-weather floor liners for durability in all conditions
» Spacious Crew Cab layout with premium materials throughout

DURAMAX PERFORMANCE & OFF-ROAD CAPABILITY
» Duramax 3.0L Turbo-Diesel engine delivering strong torque and efficiency
» Smooth 10-speed automatic transmission
» Four-wheel drive system with Autotrac two-speed transfer case
» Off-road suspension package for enhanced trail capability
» Automatic locking rear differential for improved traction
» Hill Descent Control for confident downhill driving
» Heavy-duty air filter and engine block heater for Canadian conditions
» Integrated trailer brake controller and advanced trailering system
» Hitch Guidance with Hitch View and trailer camera provisions

TECHNOLOGY & CONNECTIVITY
» 13.4" GMC Premium Infotainment System with Google built-in compatibility
» Wireless Apple CarPlay® and Android Auto" capability
» 12" digital driver information center
» Bose premium speaker system for immersive sound
» Wireless charging and multiple USB ports throughout the cabin
» HD Surround Vision and rear camera mirror
» OnStar connectivity and Wi-Fi hotspot capability
» Universal Home Remote and remote vehicle start

SAFETY & DRIVER ASSISTANCE
» GMC Pro Safety suite of advanced driver assistance features
» Automatic Emergency Braking and Forward Collision Alert
» Front Pedestrian Braking and Rear Pedestrian Alert
» Lane Keep Assist with Lane Departure Warning
» Following Distance Indicator
» Adaptive Cruise Control for enhanced highway driving
» Rear Cross Traffic Braking and Trailer Side Blind Zone Alert
» Front and Rear Park Assist with HD Surround Vision
» Safety Alert Seat and Rear Seat Reminder
» Teen Driver technology and Tire Pressure Monitoring System

WHY THE 2026 GMC SIERRA 1500 AT4 STANDS OUT
» Proven off-road capability with AT4 suspension package
» Efficient and powerful Duramax 3.0L turbo-diesel engine
» Advanced trailering technology for confident towing
» Premium interior with rugged durability
» Large 13.4" infotainment system with modern connectivity
» Built for work, adventure, and everyday driving

The 2026 GMC Sierra 1500 AT4 Duramax is designed to handle whatever comes your way-whether it's off-road trails, towing heavy loads, or daily driving. It delivers the perfect balance of strength, technology, and refinement.

Visit West Park Chevrolet Buick GMC in Altona to experience the 2026 Sierra AT4 and see how it's built to handle whatever comes next.