2023 GMC Sierra 1500 AT4
2023 GMC Sierra 1500 AT4 OVERVIEW 
2023 GMC Sierra 1500 AT4 For Sale
- Enhanced 3.0L Duramax® Turbo-Diesel Engine or Available 6.2L V8 Gas Engine with 10-speed Automatic Transmission
- 13.4" Diagonal Center Touch-Screen, 12.3" Diagonal Digital Driver Information Center and Available Multicolor 15" Diagonal Head-up Display
- Unique Jet Black Interior with Kalahari Accents and Heated and Ventilated Perforated Front Leather Seating Surfaces
- 2-Speed AutoTrac Transfer Case, Automatic Locking Rear Differential and Underbody Skid Plates
2023 GMC Sierra 1500 AT4 MODELS
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Sierra 1500 AT4
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Sierra 1500 AT4X
GMC Sierra 1500 AT4 For Sale
2023 GMC Sierra 1500 AT4 PERFORMANCE 
ENHANCED 3.0L DURAMAX® TURBO-DIESEL
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.
- Best-in-class diesel horsepower of 305
- Best-in-class torque of 495 lb.-ft.
- Active thermal management
- Available towing capacity: up to 8,900 lbs.
- 10-speed automatic transmission
6.2L V8
Standard on AT4X. Available on AT4.
- 420 available horsepower
- 460 lb.-ft. of available torque
- Dynamic Fuel Management
- Max available trailering: up to 9,000 lbs. (8,900 lbs. on AT4X)
- 10-speed automatic transmission
EQUIPPED FOR ADVENTURE
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:
- AEV stamped-steel front bumper with front winch capability
- AEV hot-stamped boron steel front approach skid plate
- Multimatic™ DSSV spool-valve dampers featuring three separate spool valves to control damping and three connected chambers for fluid flow
- Uniquely tuned springs to increase maximum front and rear suspension travel
- Specific off-road chassis and tuning
- Front and rear e-locking differentials, which assure both wheels will spin together regardless of the amount of resistance to help keep traction in the rough backcountry, a combination not offered on any competitor in its class
- Terrain Mode, ideal for low-speed, off-road conditions, providing extreme control and is precision-enabled for one-pedal rock crawling, using only the accelerator
2023 GMC Sierra 1500 AT4 APPEARANCE 
THE LOOK OF DETERMINATION
Athletic and aggressive, AT4X is as ruggedly good-looking as it is ready for adventure. AT4X’s exterior features include:
- Redesigned front fascia and grille with gloss-black upper and dark nickel inserts
- New 33" Goodyear® Wrangler Territory mud-terrain tires
- Available accessory rocker protection
- Split signature c-shaped LED headlamp design
- Protected dual-outlet exhaust
- 18" 12-spoke high gloss-black aluminum wheels with laser etching and AEV center cap
AT4 ANSWERS THE CALL OF ADVENTURE
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.
DOMINATE IN THE STYLE OF THE NEW AT4X
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.
2023 GMC Sierra 1500 AT4 COMFORT 
ONSTAR® & GMC CONNECTED SERVICES
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.
- Connected Vehicle Plan includes connectivity for available In-Vehicle Apps, Remote Access Plan and In-Vehicle Wi-Fi Hotspot data.
- OnStar Safety & Security Plan includes access to the OnStar Guardian App, Automatic Crash Response, Emergency Services, Crisis Assist, Roadside Assistance and Stolen Vehicle Assistance.
MULTIPRO: PROFESSIONAL GRADE INNOVATION
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.
REFINED FOR ROUGH COUNTRY
Explore the rough and rutted trails in style and comfort in Sierra 1500 AT4’s premium interior. AT4 interior features include:
- Jet Black with Kalahari interior and embroidered AT4 accents
- Premium front and rear floor liners with removable carpet inserts
- Available wireless charging pad
- Heated and ventilated front perforated-leather seating surfaces
- Heated leather-wrapped steering wheel
- Rear seatback and under-seat storage
- Bose Premium Sound System with Richbass woofer
- Wireless Android AutoTM and Wireless Apple CarPlay® compatibility
2023 GMC Sierra 1500 AT4 SAFETY & WARRANTY 
PRO GRADE PROTECTION
Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including:
- 3-year / 36,000-mile Bumper-to-Bumper Limited Warranty
- 5-year / 60,000-mile Powertrain Limited Warranty
- 5-year / 60,000-mile Roadside Assistance & Courtesy Transportation
- 3-year / 36,000-mile Corrosion Protection
- 6-year / 100,000-mile Rust-Through Protection
- First maintenance visit
Automatic Emergency Braking
- Works with Forward Collision Alert to help you avoid or reduce the severity of a front-end collision with a detected vehicle you're following
- Camera technology is used to automatically provide hard emergency braking or enhance the driver's hard braking
- This feature works at speeds below 50 mph
- May require additional optional equipment
6 airbags
- Dual-stage frontal airbags for driver and front outboard passenger
- Seat-mounted side-impact airbags for driver and front outboard passenger
- Head-curtain airbags for outboard seating positions
- Includes front outboard Passenger Sensing System for frontal outboard passenger airbag and illuminates a status light that indicates whether the airbag is on or off
Forward Collision Alert
- Can warn you if it detects a potential front-end collision with a vehicle you're following so you can quickly take action
- It can also provide a tailgating alert if you're following a vehicle much too closely
- May require additional optional equipment