2018 GMC Canyon power train problems
27 owner complaints filed with NHTSA name the power train on the 2018 GMC Canyon — 52% of all complaints for this model year.
What owners report
“On many occasions, over several years of ownership, ''NEW in 2018, the trans has had violent shift Problems. I could only find 1, ONE instance where a person was "injured'' by ANY of the GM 8L transmissions. My neck is hurting Now. I'm compelled to do this for Others who been Scammed by GM as they…”
filed Jul 30, 2026
“This is a known problem with GMC and Chevy trucks, known as the Rumble. At approximately 45mph and up, the truck feels like it’s going over rumble strip and the back end is slipping. This causes the steering wheel and truck to shake. It could result in the loss of control if it gets too bad. I took…”
filed Feb 21, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Canyon years
| Year | Reports | Share |
|---|---|---|
| 2024 Canyon | 3 | 1% |
| 2023 Canyon | 3 | 6% |
| 2022 Canyon | 4 | 17% |
| 2017 Canyon | 18 | 28% |
| 2016 Canyon | 39 | 15% |
| 2015 Canyon | 38 | 13% |
| 2012 Canyon | 1 | 4% |
| 2009 Canyon | 5 | 19% |
| 2008 Canyon | 3 | 8% |
| 2007 Canyon | 4 | 10% |
| 2006 Canyon | 1 | 2% |
| 2005 Canyon | 7 | 6% |
Other reported problem areas on the 2018 GMC Canyon
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.