2024 GMC Sierra HD AT4
2024 GMC Sierra HD AT4 OVERVIEW 
2024 GMC Sierra HD AT4 For Sale
- Standard 6.6L V8 Gas Engine With Allison® 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 With Off-Road Inclinometer
- Standard 20" Gloss-Black Aluminum Wheels With Available BFGoodrich Off-Road Tires
- Off-Road Suspension Package With Twin-Tube Rancho® Shocks and Skid Plates
2024 GMC Sierra HD AT4 MODELS
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Sierra HD AT4
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Sierra HD AT4X
GMC Sierra HD AT4 For Sale
2024 GMC Sierra HD AT4 PERFORMANCE 
ENHANCED 6.6L DURAMAX TURBO DIESEL V8 ENGINE WITH NEW TURBOCHARGER AND ALLISON® 10-SPEED TRANSMISSION
Sierra Heavy Duty’s world-class towing capability is enhanced for 2024 with an available 6.6L Duramax Turbo Diesel V8 engine and an all-new, more efficient turbocharger.
AVAILABLE FACTORY-INSTALLED 1.5" SUSPENSION LIFT
Sierra HD AT4X and AT4X AEV Edition are factory-lifted to provide the clearance you need to overcome off-road challenges.
MULTIMATIC DSSV DAMPERS
Available AT4X-exclusive Multimatic™ DSSV dampers feature three separate spool valves to control damping and three connected chambers for fluid flow.
2024 GMC Sierra HD AT4 APPEARANCE 
FIRST EVER SIERRA HD AT4X AEV EDITION
Tame the untamed in the First Ever Sierra HD AT4X AEV Edition. Equipped by off-road recreational driving and overland adventure travel experts American Expedition Vehicles (AEV), this off-road pickup is engineered for the roughest terrain.
AEV STAMPED-STEEL FRONT & REAR BUMPERS
AEV heavy-duty, stamped-steel, powder-coated front and rear bumpers offer added protection while summiting boulders, logs and rough terrain.
AEV RACING-INSPIRED 18" SALTA WHEELS WITH 16-SPOKE DESIGN
AEV Salta wheels with a 16-spoke design add to the AEV Edition’s rugged good looks.
2024 GMC Sierra HD AT4 COMFORT 
AEV EMBROIDERED FRONT HEAD RESTRAINTS
The truck is accented with exclusive AEV embroidered badging on the front head restraints
12.3" DIAGONAL DIGITAL DRIVER INFORMATION CENTER
Sierra Heavy Duty features a 12.3" diagonal digital Driver Information Center. Control and customize important vehicle, driving and infotainment content.
Bose® Premium Sound System
- 7-speakers with Richbass® woofer
- Bose® is renowned for expert sound engineering and high-quality audio and with premium speakers positioned throughout the cabin, you'll get rich, concert-like sound
- May require additional optional equipment
AVAILABLE PROGRADE™ TRAILERING TECH
This advanced suite of intelligent technologies helps streamline the hitching and towing process with integrated tools that help enhance your sense of safety, confidence and visibility.
2024 GMC Sierra HD 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
REAR CROSS TRAFFIC ALERT
Rear Cross Traffic Alert can warn you of detected left or right cross traffic behind your vehicle when you’re in Reverse.
SIDE BLIND ZONE ALERT
Side Blind Zone Alert can provide side-mirror visual alerts when a moving vehicle is detected in a side blind zone. It can help you avoid lane change collisions.
BLIND ZONE STEERING ASSIST
Blind Zone Steering Assist can provide a brief, firm turn of the steering wheel when a potential collision is detected with a moving vehicle in the lane you’re entering.