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2018 GMC Sierra 2500HD: common problems and reliability
One of the better Sierra 2500HD years.
The best GMC Sierra 2500HD year. All Sierra 2500HD years
35 owner complaints, most about engine. 5 recalls.
Should I buy one?The 2018 GMC Sierra 2500HD has 35 owner-filed NHTSA complaints and 5 recalls on record. The most-reported areas are engine and electrical system.
Safety record for the 2018 model year
Source: NHTSA complaints and recalls filed for 2018 GMC Sierra 2500HD vehicles (US, public record).
The Year Score compares this year with other Sierra 2500HD years only. How we score it
Is 2018 a good year for the Sierra 2500HD?
Across the 18 Sierra 2500HD model years we track, complaint volume runs from 32 (2023) to 471 (2008). With 35 complaints, the 2018 Sierra 2500HD sits below the model's median of 76.
These are raw NHTSA complaint totals, not adjusted for how many cars sold or how long each model year has been on the road. Older and higher-selling years accumulate more complaints.
Where owners report problems
Recalls affecting the 2018 Sierra 2500HD
seat belts:front:retractor
Campaign 17V567000General Motors (GM) is recalling certain 2017-2018 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 trucks. The front seat belt retractor assemblies were built with the incorrect torsion bar. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 209, "Seat Belt Assemblies."
engine
Campaign 19V328000General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 4500, 5500 and 6500 vehicles and 2017-2019 Chevrolet Silverado 2500 and 3500 vehicles and GMC Sierra 2500 and 3500 vehicles equipped with Duramax 6.6 liter diesel engines and an optional engine-block heater. The engine block heater cord or the terminals that connect the heater cord to the block heater may short circuit and fail.
equipment:electrical:engine block heater
Campaign 21V496000General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500 and 2017-2019 GMC Sierra 2500 and 3500 vehicles equipped with a Duramax diesel 6.6 liter engine and an optional engine-block heater cord. An electrical short-circuit may occur in the engine-block heater cable or in the terminals that connect the heater cable to the block heater.
fuel system, diesel:storage:tank assembly
Campaign 23V047000General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 vehicles equipped with a dual fuel tank option. The rear fuel tank may collapse and prevent the fuel pump from transferring fuel to the front tank, resulting in an engine stall.
Show 1 more recall
air bags:side/window:curtain:inflator
Campaign 24V756000General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2018-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 Crew Cab trucks. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.
What owners say across generations
Sentiment is mixed and heavily dependent on model year, powertrain choice, and intended use. Positive feedback centers on the truck's capability, towing comfort, and the refined ride quality of the independent front suspension, particularly in newer models.
Owner insights cover all generations of the Sierra 2500HD. See the full Sierra 2500HD owner picture and every model year.
Typical used price
Used Sierra 2500HD listings typically run $20,994–$45,465 across 2002 to 2024 model years.
Other Sierra 2500HD model years
Compare every Sierra 2500HD year side by side to see how 2018 ranks against the rest.
Compare the Sierra 2500HD against its rivals
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