2025 GMC Sierra 2500HD near Washington, MO
2025 GMC Sierra 2500HD
*MSRP Starting At $64,700

Overview of The 2025 GMC Sierra 2500HD in Union, MO
The 2025 GMC Sierra 2500HD delivers heavy-duty muscle with surprising refinement. For 2025, adaptive cruise control with trailering assist becomes standard on AT4 and Denali trims, while trailer-brake controller is now standard across all configurations. Two powerful engines handle any job: the standard 6.6-liter gas V8 produces 401 horsepower and 464 lb-ft torque, while the optional Duramax turbo-diesel delivers 470 horsepower and massive 975 lb-ft torque. Both pair with a responsive 10-speed automatic transmission. Maximum towing reaches 36,000 pounds when properly equipped.
Technology and Highlights
The Sierra 2500HD keeps you connected and confident with standard Apple CarPlay, Android Auto, and Wi-Fi hotspot. Higher trims feature a 13.4-inch touchscreen with Google Built-in integration. The comprehensive camera system offers 15 viewing modes, including innovative "transparent" trailer view. Standard safety includes forward collision warning, automatic emergency braking, and lane departure warning. Available assists include adaptive cruise control, blind-spot monitoring, and surround-view cameras.

2025 GMC Sierra 2500HD Trim Levels
2025 GMC Sierra 2500HD Pro*Starting at $46,300![]() | 2025 GMC Sierra 2500HD SLE*Starting at $50,400![]() | 2025 GMC Sierra 2500HD SLT*Starting at $60,100![]() | 2025 GMC Sierra 2500HD AT4*Starting at $71,000![]() |
2025 GMC Sierra 2500HD Denali*Starting at $73,900![]() | 2025 GMC Sierra 2500HD AT4X*Starting at $83,200![]() | 2025 GMC Sierra 2500HD Denali Ultimate*Starting at $92,800![]() |

Design and Style
GMC's bold styling commands attention on any job site or highway. The lineup spans from work-focused Pro to luxurious Denali Ultimate featuring premium leather, Paldao wood, and microsuede headliner. The innovative MultiPro tailgate provides six configurations for maximum versatility. The spacious crew cab comfortably seats with six available heated/ventilated seats and wireless charging.
Awards and Accolades
Industry experts consistently praise the Sierra 2500HD. U.S. News ranks it #4 in Heavy-Duty Trucks with an 8.7/10 rating. Car and Driver awards 6.5/10, highlighting luxury capabilities and towing prowess. J.D. Power gives it 75/100 predicted reliability score. Ready to experience the Sierra 2500HD's power and luxury? Visit Jim Trenary Chevrolet GMC of Union today.

GMC Sierra 2500HD FAQ
Is the Sierra 2500HD safe for daily driving?
Yes. It includes forward collision warning, automatic emergency braking, and lane departure warning as standard. Available features like blind-spot monitoring, adaptive cruise control, and surround-view cameras further boost confidence on the road.
What trim levels are available?
The Sierra 2500HD lineup ranges from the practical Pro to the rugged AT4 and luxurious Denali Ultimate, which offers premium leather, Paldao wood trim, and a microsuede headliner.
Shop the 2025 GMC Sierra 2500HD Today!
*The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles' destination freight charges.