2026 GMC Sierra 1500 AT4 

in Altona 

The 2026 GMC Sierra 1500 AT4 is engineered for drivers who want serious capability wrapped in bold, athletic design. Purpose-built for off-road confidence while maintaining everyday comfort and advanced technology, the AT4 stands out as a rugged yet refined full-size truck ready for work, adventure, and everything in between.

With its performance-focused suspension, advanced AWD system, and distinctive AT4 styling, this Sierra is built to go further with confidence.

BOLD AT4 DESIGN & RUGGED STYLE

» AT4 Sport Touring-inspired exterior with high-gloss black grille and accents
» Stone Metallic exterior with blacked-out trim details
» 20-inch alloy wheels with high-gloss black and machined finish
» Gloss black rocker moldings, wheel moldings, and roof rails
» Body-colour door handles and sculpted body-side moldings
» Hands-free power liftgate with programmable height
» LED lighting with IntelliBeam automatic high beams
» Confident, trail-ready stance designed for both city and off-road presence

COMFORTABLE & ADVENTURE-READY INTERIOR

» Black interior with premium materials and sporty detailing
» Seating for up to seven passengers
» Front bucket seats with power adjustment and lumbar support
» Heated front seats and heated steering wheel
» Tri-zone automatic climate control with rear air conditioning
» Acoustic laminated windshield and active noise cancellation for a quiet ride
» Rear seat reminder and flexible seating for passengers or cargo

POWER & PERFORMANCE

» 2.5L Turbo DOHC engine delivering responsive, efficient power
» 8-speed automatic transmission for smooth, controlled shifting
» Advanced All-Wheel Drive system for confident traction
» Performance-tuned suspension for improved handling and control
» Heavy-duty cooling system and trailering package
» Hitch Guidance with Hitch View for easier towing
» Engine block heater and stop/start system override

TECHNOLOGY & CONNECTIVITY

» Ultra-wide 30-inch diagonal LCD display with Google built-in
» Wireless Apple CarPlay and Android Auto
» Bose premium audio system for immersive sound
» Wireless phone charging and multiple USB and USB-C ports across all rows
» Digital driver information display with customizable layouts
» Built-in Wi-Fi hotspot capability and 5G vehicle connectivity
» Remote start and keyless open

SAFETY & DRIVER ASSISTANCE

» Buick and GMC advanced safety technologies including:
* Enhanced Automatic Emergency Braking
* Forward Collision Alert
* Lane Keep Assist with Lane Departure Warning
* Blind Zone Steering Assist
* Rear Cross Traffic Braking
* Front Pedestrian and Bicyclist Braking
* Rear Pedestrian Alert
* HD Surround Vision with rear camera washer
* Adaptive Cruise Control
» Teen Driver and Buckle to Drive technologies

WHY THE 2026 GMC SIERRA 1500 AT4 STANDS OUT

» Bold AT4 styling with blacked-out performance details
» Confident turbocharged power with AWD capability
» Advanced trailering and driver-assist technology
» Premium interior comfort with a rugged edge
» A perfect balance of off-road readiness and everyday refinement

The 2026 GMC Sierra 1500 AT4 is built for those who demand capability without compromise. Strong, confident, and technologically advanced, it's ready to take on tough terrain and daily driving with equal ease.

Visit West Park Chevrolet Buick GMC in Altona to experience the 2026 GMC Sierra 1500 AT4 and see how professional-grade performance meets bold