GMC reliability and problems by model
Owners have filed 21,393 complaints about GMC models with NHTSA since 2010, and GMC has filed 107 warranty extensions. Pick a model to compare its model years.
From NHTSA's public data files, downloaded 2026-10-10.
GMC models
| Model | Complaints | Model years | Most complaints | Most named |
|---|---|---|---|---|
| Sierra 1500 | 6,542 | 2010–2026 | 2014 | Engine |
| Acadia | 3,957 | 2010–2026 | 2017 | Transmission and drivetrain |
| Terrain | 3,153 | 2010–2026 | 2011 | Engine |
| Yukon | 2,977 | 2010–2026 | 2015 | Engine |
| Yukon XL | 1,933 | 2010–2026 | 2015 | Engine |
| Canyon | 1,088 | 2010–2026 | 2015 | Steering |
| Sierra 2500 | 780 | 2010–2026 | 2024 | Electrical system |
| Sierra | 557 | 2010–2020 | 2014 | Exterior lights |
| Sierra 3500 | 344 | 2010–2026 | 2020 | Transmission and drivetrain |
| Savana | 37 | 2010–2022 | 2017 | Steering |
| Yukon XL 1500 | 25 | 2010–2012 | 2011 | Other or unspecified |
Look up a GMC by VIN or model year
Recent GMC warranty extensions
The latest warranty extensions GMC filed with NHTSA, and the models they cover. Each model's page lists all of them.
- Apr 2026· Engine· Sierra 1500
This message is to inform dealers that Special Coverage N262548050 is being temporarily suspended for the models above.
- Apr 2026· Wheels· Yukon, Yukon XL
Special Coverage. Certain vehicles listed above may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve.
- Apr 2026· Wheels· Yukon, Yukon XL
Special Coverage. Certain vehicles listed above may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve.
- Dec 2024· Transmission and drivetrain· Sierra 2500, Sierra 1500, Yukon, Sierra 3500, Yukon XL
Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve.
- Nov 2024· Transmission and drivetrain· Sierra 2500, Sierra 1500, Yukon, Sierra 3500, Yukon XL
Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve.
- Aug 2024· Engine· Canyon
Special Coverage. Certain vehicles, equipped with a 2.8L diesel engine (RPO LWN), could have a condition that may intermittently cause the throttle body motor to fail to complete the throttle position learn cycle within the allowed time.
- Jun 2024· Engine· Acadia
Special Coverage. Certain vehicles, equipped with a 2.0 gasoline engine (RPO LSY), may have a condition that could cause the evaporative emissions purge pump to fail.
- May 2024· Electrical system· Acadia, Terrain, Savana, Sierra 2500, Sierra 1500, Yukon XL 1500
This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
- Jan 2024· Engine and cooling· Sierra 1500
Special Coverage. Certain vehicles may have a condition that could cause the engineâs cylinder 2 glow plug to fail.
- Jul 2023· Engine and cooling· Savana
Special Coverage: Certain vehicles may have a condition that could cause a fracture to occur in the left inlet pipe of the catalytic converter.
- Jul 2023· Engine and cooling· Acadia, Sierra 1500
Special Coverage - Certain vehicles may have a condition that could cause the evaporative emissions purge pump to fail.
- Mar 2023· Visibility· Terrain
Special Coverage. On certain 2010-2012 model year and 2016-2017 model year Chevrolet Equinox and GMC Terrain vehicles, the ball joints in the front windshield wiper modules of these vehicles may experience high corrosion and wear that could result in the separation of one or…