New 2025 GMC Sierra 1500 AT4

Description for 2025 GMC Sierra 1500 AT4 Truck

The 2025 GMC Sierra 1500 AT4 is a full-size truck that combines premium technology with off-road readiness. With its 3.0L Duramax Turbo-Diesel inline-6 engine mated to a 10-speed automatic transmission and 4WD, it balances impressive torque delivery with fuel efficiency, offering an EPA-estimated 22 MPG city and 26 MPG highway. The AT4 trim is specifically engineered for rugged terrain, featuring hill descent control, an auto-locking rear differential, and off-road high-clearance assist steps.

Visually, this truck stands out in Volcanic Red Tintcoat with distinctive Black Chrome grille insert bars and red recovery hooks. Its aggressive stance is matched by practical enhancements like rear wheelhouse liners, a spray-on bedliner with the GMC logo, perimeter lighting, LED cargo area lighting, and a bed view camera that supports trailering functions.

Inside, the Sierra 1500 AT4 blends comfort and advanced functionality. Jet Black leather with Kalahari accents adds a refined yet sporty touch, and both the driver and front passenger enjoy heated and ventilated seats. Heated outboard rear seats provide additional comfort for passengers. The cabin includes power front and rear windows, a power sliding rear window with defogger, and a floor-mounted center console with carpeted liners.

Technology and connectivity are a major focus in this trim. A 15-inch diagonal multicolor head-up display and rear camera mirror enhance visibility and situational awareness. The infotainment system is centered around navigation and a premium 7-speaker Bose audio setup. A wireless charging pad, USB charge/data ports, and Wi-Fi hotspot capability ensure the cabin is equipped for modern connectivity needs. The Technology Package includes HD Surround Vision and Trailer Camera Provisions, which complement features like Trailer Side Blind Zone Alert, Hitch Guidance with Hitch View, and an integrated trailer brake controller.

The AT4 Premium and Preferred Packages further equip this Sierra with amenities such as rain-sensing wipers, universal home remote, rear pedestrian detection, and ultrasonic front and rear park assist. Keyless open and push-button start, a remote vehicle starter system, and a theft deterrent system add security and convenience.

GMC also equips this model with a 220-amp alternator, heavy-duty air filter, and various power outlets inside and in the bed, making it well-suited for work or play. The Sierras trailering and off-road systems are supported by the in-vehicle Trailering App and advanced driver-assistance technologies for greater control and confidence.

Buyers of the 2025 Sierra 1500 AT4 can shop with peace of mind under the Walt Massey 3 Day Money Back Guarantee. This guarantee allows customers to return the vehicle in "like new" condition within three business days if they are not satisfied. The vehicle must be returned with less than 300 miles driven; if more than 300 miles are logged, a fee of \$1.00 per additional mile is applied. This return policy ensures that customers have the opportunity to make their purchase decision with full confidence.




Price includes: $2500 - Buick and GMC Purchase Loyalty Program. Exp. 06/02/2025 $2750 - Buick & GMC Consumer Cash Program. Exp. 06/02/2025 $500 - GM Military Cash Allowance Program. Exp. 01/02/2026