2021 GMC Sierra 1500 problems, from the federal record
Owners of the 2021 GMC Sierra 1500 have filed 506 complaints with NHTSA, and the vehicle has 7 safety recall campaigns on file. The most-reported problem areas: engine (261), transmission and drivetrain (123), electrical system (69).
Source: NHTSA complaint and recall databases, last verified July 8, 2026. Complaints are unverified owner self-reports; volume is a signal, not a verdict, and popular models draw more complaints because more are on the road.
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Safety recalls (7)
Campaigns NHTSA lists for the 2021 GMC Sierra 1500. Whether your specific vehicle is included depends on your VIN; recall repairs are free at the dealer.