2026 GMC Sierra 1500 AT4 

in Altona 

2026 GMC Sierra 1500 AT4  Description

The 2026 GMC Sierra 1500 AT4 is built for drivers who want real off-road capability without giving up comfort, technology, or premium finishes. Purpose-engineered for rugged terrain and confident towing, the AT4 pairs aggressive styling and trail-ready hardware with a refined interior and powerful V8 performance.

Finished in Sterling Metallic with a distinctive Jet Black/Kalahari interior, this Sierra AT4 delivers bold presence and serious capability in one well-balanced package.

RUGGED AT4 DESIGN & OFF-ROAD PRESENCE

» AT4-exclusive styling with blacked-out accents and aggressive stance
» 20-inch machined aluminum wheels with Carbon Grey metallic accents
» All-terrain tires and factory skid plates for trail protection
» Red front recovery hooks and off-road high-clearance steps (dealer installed)
» GMC MultiPro Tailgate with EZ Lift power lock and release
» Spray-on bedliner and LED cargo bed lighting
» Rear bumper CornerSteps and rear wheelhouse liners

PREMIUM & ADVENTURE-READY INTERIOR

» Jet Black/Kalahari interior with AT4-specific premium finishes
» Front bucket seats with power driver and power front passenger adjustment
» Heated and ventilated front seats
» Heated second-row outboard seats
» Heated wrapped steering wheel with power tilt and telescopic column
» Memory settings for mirrors and driver preferences
» Dual-zone automatic climate control with rear air vents
» Power sliding rear window, keyless open, push-button start, and remote start
» Rear seat storage package for added versatility

POWER & OFF-ROAD PERFORMANCE

» 6.2L EcoTec3 V8 engine delivering strong, confident power
» 10-speed automatic transmission for smooth shifting and control
» Active Exhaust System for a refined yet aggressive tone
» 4WD with AutoTrac two-speed transfer case
» AT4 off-road suspension package for improved ground clearance and control
» Automatic locking rear differential
» Hill Descent Control for steep or uneven terrain
» Engine oil cooler and heavy-duty air filter

TECHNOLOGY & CONNECTIVITY

» 13.4-inch GMC Premium Infotainment touchscreen with Google built-in
» Wireless Apple CarPlay and Android Auto capability
» Bose premium audio system
» Wireless charging and multiple USB ports throughout the cabin
» 12-inch reconfigurable digital Driver Information Center
» Technology Package with:
* Rear Camera Mirror
* Multicolor 15-inch Head-Up Display
* Bed View Camera
* HD Surround Vision
» Trailering App with Hitch Guidance and Hitch View

SAFETY & DRIVER ASSISTANCE

» GMC Pro Safety includes:
* Automatic Emergency Braking
* Forward Collision Alert
* Front Pedestrian Braking
* Lane Keep Assist with Lane Departure Warning
* Following Distance Indicator
* IntelliBeam automatic high beams
» Front and Rear Park Assist
» Rear Cross Traffic Braking and Rear Pedestrian Alert
» Trailer Side Blind Zone Alert with trailer camera provisions
» Adaptive Cruise Control, Teen Driver Mode, and Buckle to Drive

WHY THE 2026 GMC SIERRA 1500 AT4 STANDS OUT

» True off-road capability with factory skid plates and AT4 suspension
» Powerful 6.2L V8 performance
» Premium interior with advanced technology
» Smart trailering tools for confident towing
» A perfect blend of rugged strength and refined comfort

The 2026 GMC Sierra 1500 AT4 is built for those who don't stay on the pavement. Strong, capable, and thoughtfully equipped, it's ready for trails, towing, and everyday driving with equal confidence.

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