2021 GMC Sierra 2500HD Overview, Reviews, Ratings & Specs

2024 2023 2022 2021 2020 2019 2018
Crash Test
Not Tested
Source NHTSA
MPG (up to)
City / HWY
Source FuelEconomy.gov
Horsepower
401 -445
Seats
5 -6
Front passenger 3/4 w/ wheels turned.

GMC Sierra 2500HD Models

Models also known as Trim Levels, are used to identify a vehicle's level of equipment or special features.

car
Base
401-445 HP 5-6 Seats
car
SLE
401-445 HP 5-6 Seats
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SLT
401-445 HP 5-6 Seats
car
AT4
401-445 HP 5 Seats
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Denali
401-445 HP 5 Seats
Photos may not match model

2021 GMC Sierra 2500HD Owner Reviews

We do not yet have any reviews for the 2021 GMC Sierra 2500HD. If you own this vehicle, please let us know what you think of this car.
Read 2020 GMC Sierra 2500HD Owner Reviews (16) chevronRightAlternative

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Safety & Reliability

NHTSA Logo
NHTSA Crash Test
(Not Rated)
*National Highway Traffic Safety Administration
IIHS Logo
IIHS Crash Test
(Not Tested)
*Insurance Institute for Highway Safety