UP TO 15 CAMERA VIEWS Show
Keep tabs on your truck and trailer with up to 15 different available camera views† to optimize the view around the truck and compatible trailers, including:
VIEW ALL TECH & SAFETY FEATURES AVAILABLE 15" DIAGONAL HEAD-UP DISPLAY This feature projects key information onto your windshield such as:
VIEW ALL TECH & SAFETY FEATURES PROGRADE™ TRAILERING SYSTEM This system of intelligent trailering technologies helps streamline the hitching and towing process with integrated tools that help you tow with confidence and control.
VIEW ALL TECH & SAFETY FEATURES INTELLIGENT SAFETY FEATURES
Help enhance your awareness of the road and surrounding vehicles with the available suite of intelligent
safety technologies† including:
VIEW ALL TECH & SAFETY FEATURES ONSTAR® & GMC CONNECTED SERVICES Receive three years of the OnStar and Connected Services Premium Plan with your new 2023 Sierra Heavy Duty AT4, including the Connected Vehicle Plan† and the OnStar Safety & Security Plan.†
VIEW ALL TECH & SAFETY FEATURES CAPABILITY
Due to current supply-chain shortages, certain features shown have limited or late availability, or are no longer available. See the window label or a dealer regarding the features on an individual vehicle. ENGINEERED TO PERFORMThe 2023 Sierra Heavy Duty pickup truck offers up to 36,000 lbs.† of available max towing. It’s built strong so you can tow strong. The large drive shaft and rear axle will give you exceptional durability and strength, and its powerful brakes and steering offer superior control. SEE WHAT'S UNDER THE HOOD
DIESEL TECHNOLOGYEfficient, responsive and powerful — get familiar with Sierra Heavy Duty’s available Duramax® Turbo-Diesel engine capabilities. AVAILABLE 6.6L DURAMAX TURBO-DIESEL V8 ENGINE CAPABILITY WITHOUT COMPROMISE
While the 2023 Sierra Heavy Duty offers powertrain advancements across the lineup, the legendary available Duramax Diesel engine and 10-Speed Allison Automatic Transmission continue to offer the in pulling power excellence:
OPTIMIZED ENGINE PERFORMANCE
Engineers worked to make this already powerful engine perform more efficiently by optimizing its cooling capacity by way of a large radiator and fan and improving the air induction system.
ADVANCED ENGINES & TRANSMISSIONS2500 ENGINESOverhead-valve, two valves per cylinder, variable valve trimming Overhead-valve, four valves per cylinder Common-Rail Direct Fuel Injection 2500 TRANSMISSIONS & AXLES6L90 SIX-SPEED AUTOMATIC TRANSMISSION (6.6L GAS) ALLISON 10-SPEED AUTOMATIC TRANSMISSION (6.6L DIESEL) 3500 ENGINESOverhead-valve, two valves per cylinder, variable valve trimming Overhead-valve, four valves per cylinder Common-Rail Direct Fuel Injection 3500 TRANSMISSIONS & AXLES6L90 SIX-SPEED AUTOMATIC TRANSMISSION (6.6L GAS) ALLISON 10-SPEED AUTOMATIC TRANSMISSION (6.6L DIESEL) TOWING AND PAYLOAD TABLES2500 DIESEL TOWING & PAYLOAD4WD CREW CAB STANDARD BOX 2500 GAS TOWING & PAYLOAD4WD CREW CAB STANDARD BOX 3500 DIESEL TOWING & PAYLOAD4WD CREW CAB STANDARD BOX 4WD CREW CAB LONG BOX SRW 4WD CREW CAB LONG BOX DRW 3500 GAS TOWING & PAYLOAD4WD CREW CAB STANDARD BOX SRW CREW CAB LONG BOX 4WD DENALI DRW CREW CAB LONG BOX 4WD AT4 & DENALI’S HEAVY DUTY CAPABILITY RESPONSIVE SUSPENSIONS
STAY COOL UNDER PRESSURE
STOPPING & GOING POWERAVAILABLE AUTO ELECTRIC PARKING BRAKE
PARK GRADE HOLD ASSIST
AVAILABLE DIGITAL VARIABLE STEERING ASSIST
AVAILABLE 2-SPEED AUTOTRAC TRANSFER CASE
AVAILABLE TRACTION SELECT SYSTEM WITH TOW/HAUL MODE AND OFF-ROAD MODE
ADVENTUROUS PACKAGESX31 OFF-ROAD PACKAGE
GOOSENECK/5TH WHEEL HITCH PACKAGE
Due to current supply-chain shortages, certain features shown have limited or late availability, or are no longer available. See the window label or a dealer regarding the features on an individual vehicle. NEXT STEPSHow much can a GMC 2500HD Duramax tow?ENGINEERED TO PERFORM. The 2023 Sierra Heavy Duty pickup truck offers up to 36,000 lbs. of available max towing.
How much can an AT4 tow?Built to power you and your trailer off-road, the Sierra HD AT4 Pickup Truck offers available towing up to 21,130 LBS.
How much can a 2022 GMC 2500 pull?The 2022 GMC Sierra 2500 HD can tow up to 18,500 lbs when properly equipped. Use this guide to learn more about the 2022 GMC Sierra 2500 towing capacity and its engine specs brought to you by the specialists at McCaddon Buick GMC!
What is the AT4 package on a 2500HD?2021 GMC Sierra 2500HD AT4 Safety
Bundled in with the AT4 Premium Package are advanced safety features such as front and rear park assist, lane change alert, lane departure warning, rear cross traffic alert, forward collision alert, automatic emergency braking and automatic high beams.
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