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GMC Sierra 2500HD

All GMC Vehicles

Latest Model

2020 Model Redesign Year
GMC upgraded the heavy-duty Sierra pickup trucks for the 2024 model year, with bold styling, potent powertrains, added comfort and convenience, and more standard safety features. The base engine is a 401-hp, 6.6-liter V8 with a 10-speed automatic transmission. For large towing chores, there is an available turbodiesel V8, plus a variety of assistance features, such as special cameras, adaptive cruise control, blind spot warning, and a maximum weight monitor. The trims walk from basic, work-focused Pro up to the AT4X off-road champ and Denali Ultimate, a new, full-featured, leather-lined version. Standard active safety features include FCW, AEB with pedestrian detection, and LDW.

2026 GMC Sierra 2500HD

EPA MPG
NA
Road Test Score
Predicted Reliability
Predicted Owner Satisfaction
Base MSRP Range
$47,300 - $94,500
Destination Charge: $2795
View Model Ratings
Base MSRP Range
$47,300 - $94,500
Destination Charge: $2795

2026 GMC Sierra 2500HD

EPA MPG
NA
Road Test Score
Predicted Reliability
Predicted Owner Satisfaction
View Model Ratings
2026 GMC Sierra 2500HD
Base MSRP
$47,300 - $94,500
EPA MPG
NA
Road Test Score
NA 
Predicted Reliability
/ 100
Predicted Owner Satisfaction
/ 100
Join for Ratings & Reviews

2020-Present

2020 Model Redesign Year
The redesigned, next-generation Sierra HD's exterior is more visually distinguished from the Sierra 1500. Aside from its roof, which is shared with the light-duty Sierra, all other visible elements are unique to the work-focused HD truck. The standard engine is a 401-hp, 6.6-liter V8 with a six-speed transmission (later upgraded to a 10-speed automatic). A 6.6-liter turbodiesel V8 engine with a 10-speed transmission is also available. For 2027, the 6.6-liter was upgraded to 412 hp, and the diesel engine was replaced by a 555-hp, 8.3-liter turbodiesel V8. This generation grew in size, allowing for more rear-seat legroom.
GM claims that the new HD, when properly equipped, can tow up to 35,500 pounds. Available safety features include forward collision warning, automatic emergency braking, lane departure warning, blind spot warning, and rear cross traffic warning.
2025 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2024 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2023 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2022 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2021 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2020 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100

2015-2019

2015 Model Redesign Year
These trucks are much stiffer and ride less comfortably than the standard Silverado 1500 (1/2 ton). They are designed for hard work and a 3/4 ton capacity. The ride is bouncy but the available engines include a relatively refined, Isuzu-developed 6.6-liter turbodiesel V8 and a huge 8.1-liter, 340-hp V8. The 2007 redesign brought a new 6.0-liter V8 in addition to the older 6.6-liter V8 turbodiesel. The latter engine is very powerful but returned just 13 mpg overall. The six-speed Allison transmission is very smooth.
2019 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2018 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2017 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2016 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2015 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100

2011-2014

2011 Model Redesign Year
These trucks are much stiffer and ride less comfortably than the standard Silverado 1500 (1/2 ton). They are designed for hard work and a 3/4 ton capacity. The ride is bouncy but the available engines include a relatively refined, Isuzu-developed 6.6-liter turbodiesel V8 and a huge 8.1-liter, 340-hp V8. The 2007 redesign brought a new 6.0-liter V8 in addition to the older 6.6-liter V8 turbodiesel. The latter engine is very powerful but returned just 13 mpg overall. The six-speed Allison transmission is very smooth.
2014 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2013 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2012 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2011 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100

2007-2010

2007 Model Redesign Year
These trucks are much stiffer and ride less comfortably than the standard Silverado 1500 (1/2 ton). They are designed for hard work and a 3/4 ton capacity. The ride is bouncy but the available engines include a relatively refined, Isuzu-developed 6.6-liter turbodiesel V8 and a huge 8.1-liter, 340-hp V8. The 2007 redesign brought a new 6.0-liter V8 in addition to the older 6.6-liter V8 turbodiesel. The latter engine is very powerful but returned just 13 mpg overall. The six-speed Allison transmission is very smooth.
2010 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
NA 
Owner Satisfaction
NA 
2009 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2008 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2007 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100

2000-2006

These trucks are much stiffer and ride less comfortably than the standard Silverado 1500 (1/2 ton). They are designed for hard work and a 3/4 ton capacity. The ride is bouncy but the available engines include a relatively refined, Isuzu-developed 6.6-liter turbodiesel V8 and a huge 8.1-liter, 340-hp V8.
2006 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2005 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2004 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
2003 GMC Sierra 2500HD
Retail Price
NA
EPA MPG
NA
Reliability Verdict
/ 100
Owner Satisfaction
/ 100
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PERFORMANCE TESTING

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miles of track for testing acceleration, ride, handling, braking, and advanced driver assist systems.

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400

tires tested a year for all-weather grip and rolling resistance.

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