GMC engine problems
Across all GMC models in NHTSA's complaint database, 8,273 complaints involve engine. The Sierra 1500 accounts for the largest share (28%). The single worst model year is the 2021 Sierra 1500 with 370 engine complaints.
At a glance
- Complaints
- 8,273 about engine, all GMC models
- Most affected
- Sierra 1500 29% of these complaints
- Typical mileage
- 74,000 miles 3,334 complaints with mileage
- Crashes and fires
- 97 and 171
Source: NHTSA owner complaints
Which GMC models
| Model | Complaints | Share |
|---|---|---|
| Sierra 1500 | 2,358 | 29% |
| Terrain | 1,283 | 16% |
| Yukon | 1,052 | 13% |
| Acadia | 813 | 10% |
| Yukon XL | 796 | 10% |
| Jimmy | 278 | 3% |
| Envoy | 242 | 3% |
| Sierra | 225 | 3% |
| Sierra 2500 | 203 | 3% |
| Canyon | 155 | 2% |
Worst model years for engine
- 2021 GMC Sierra 1500370 complaints
- 2019 GMC Sierra 1500339 complaints
- 2022 GMC Sierra 1500268 complaints
- 2020 GMC Sierra 1500263 complaints
- 2023 GMC Sierra 1500234 complaints
Engine complaints by model year
View the numbers
| Model year | Complaints |
|---|---|
| 1990 | 11 |
| 1991 | 15 |
| 1992 | 21 |
| 1993 | 43 |
| 1994 | 85 |
| 1995 | 145 |
| 1996 | 113 |
| 1997 | 113 |
| 1998 | 70 |
| 1999 | 96 |
| 2000 | 94 |
| 2001 | 131 |
| 2002 | 183 |
| 2003 | 161 |
| 2004 | 157 |
| 2005 | 150 |
| 2006 | 94 |
| 2007 | 197 |
| 2008 | 228 |
| 2009 | 123 |
| 2010 | 241 |
| 2011 | 313 |
| 2012 | 243 |
| 2013 | 258 |
| 2014 | 273 |
| 2015 | 288 |
| 2016 | 205 |
| 2017 | 299 |
| 2018 | 230 |
| 2019 | 557 |
| 2020 | 423 |
| 2021 | 807 |
| 2022 | 561 |
| 2023 | 620 |
| 2024 | 425 |
| 2025 | 137 |
| 2026 | 163 |
Among the 3,334 of these complaints that report mileage, the median is about 74,000 miles.
Complaint counts are not adjusted for how many vehicles each brand sells, so large brands naturally have more complaints.