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2015
Sierra HD
Problems
Engine (29%)
Transmission and Drivetrain (14%)
Brakes and Traction Control (7%)
Suspension and Steering (7%)
Electrical and Air Conditioning (36%)
Paint, Rust, Leaks, Rattles, and Trim (0%)
Other (7%)
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8-cylinder automatic 4WD
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See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2015 GMC Sierra HD problems occur, check out our car reliability stats.