GMC electrical system problems
Across all GMC models in NHTSA's complaint database, 6,698 complaints involve electrical system. The Sierra 1500 accounts for the largest share (18%). The single worst model year is the 2017 Acadia with 194 electrical system complaints.
At a glance
- Complaints
- 6,698 about electrical system, all GMC models
- Most affected
- Sierra 1500 18% of these complaints
- Typical mileage
- 64,000 miles 3,662 complaints with mileage
- Crashes and fires
- 98 and 376
Source: NHTSA owner complaints
Which GMC models
| Model | Complaints | Share |
|---|---|---|
| Sierra 1500 | 1,221 | 18% |
| Acadia | 1,090 | 16% |
| Envoy | 681 | 10% |
| Yukon | 621 | 9% |
| Terrain | 352 | 5% |
| Yukon XL | 345 | 5% |
| Sierra 2500 | 294 | 4% |
| Canyon | 271 | 4% |
| Sierra | 259 | 4% |
| Jimmy | 231 | 3% |
Worst model years for electrical system
- 2017 GMC Acadia194 complaints
- 2005 GMC Envoy184 complaints
- 2004 GMC Envoy166 complaints
- 2008 GMC Acadia154 complaints
- 2014 GMC Sierra 1500129 complaints
Electrical system complaints by model year
View the numbers
| Model year | Complaints |
|---|---|
| 1990 | 15 |
| 1991 | 20 |
| 1992 | 25 |
| 1993 | 45 |
| 1994 | 62 |
| 1995 | 97 |
| 1996 | 97 |
| 1997 | 120 |
| 1998 | 110 |
| 1999 | 102 |
| 2000 | 79 |
| 2001 | 106 |
| 2002 | 142 |
| 2003 | 438 |
| 2004 | 711 |
| 2005 | 476 |
| 2006 | 205 |
| 2007 | 270 |
| 2008 | 309 |
| 2009 | 118 |
| 2010 | 115 |
| 2011 | 126 |
| 2012 | 115 |
| 2013 | 88 |
| 2014 | 274 |
| 2015 | 377 |
| 2016 | 232 |
| 2017 | 339 |
| 2018 | 215 |
| 2019 | 279 |
| 2020 | 166 |
| 2021 | 178 |
| 2022 | 195 |
| 2023 | 176 |
| 2024 | 169 |
| 2025 | 65 |
| 2026 | 42 |
Among the 3,662 of these complaints that report mileage, the median is about 64,000 miles.
Complaint counts are not adjusted for how many vehicles each brand sells, so large brands naturally have more complaints.