The second-generation 3.0L Duramax Turbo-Diesel engine is now enhanced thanks to several key component upgrades including new steel pistons with a revised combustion bowl, retuned turbo compressor, new fuel injectors and improved temperature control features. Standard on AT4. Not available on AT4X.
Standard on AT4X. Available on AT4.
AT4X takes off-road capability to the next level with serious adventure-ready equipment to tackle the challenges of the trail. AT4X's capability features include:
Athletic and aggressive, AT4X is as ruggedly good-looking as it is ready for adventure. AT4X’s exterior features include:
A tall, confident stance with a 2" factory-installed lift, mud-terrain tires, Red Recovery Hooks and dark, distinguished details create a look that’s as bold as Sierra 1500 AT4’s road capability.
The New AEV-inspired 2023 Sierra 1500 AT4X stands tall with new 33" Goodyear® Wrangler Territory mud-terrain tires and an aggressive redesigned front fascia and grille with gloss-black upper and dark nickel inserts. Echoing its fierce off-road capability, the AT4X is now geared with an AEV hot-stamped boron steel front approach skid plate and an AEV stamped-steel front bumper with front winch capability.
Receive three years of the OnStar Safety & Security Plan in addition to the Connected Vehicle Plan that comes standard with your new 2023 Sierra 1500 AT4 and AT4X.
The powerfully innovative available MultiPro Tailgate combines six convenient functions that help improve loading, unloading and accessing the cargo bed to make light work of almost any job.
Explore the rough and rutted trails in style and comfort in Sierra 1500 AT4’s premium interior. AT4 interior features include:
Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including: