2019 GMC Acadia engine problems
52 owner complaints filed with NHTSA name the engine on the 2019 GMC Acadia — 14% of all complaints for this model year.
What owners report
“I am submitting this complaint to request that NHTSA investigate a potential safety defect involving the engine coolant temperature monitoring system, thermostat/engine coolant temperature sensor system, and its relationship to reduced steering assist in 2019 GMC Acadia vehicles. My 2019 GMC…”
filed Sep 14, 2026
“The contact owns a 2019 GMC Acadia. The contact stated that while driving at an undisclosed speed, the engine seized, with several unknown warning lights illuminated. Additionally, the battery low and steering assist warning lights were illuminated. The contact's minor children were occupants in…”
filed Aug 17, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Acadia years
| Year | Reports | Share |
|---|---|---|
| 2025 Acadia | 5 | 8% |
| 2024 Acadia | 9 | 16% |
| 2023 Acadia | 12 | 28% |
| 2022 Acadia | 14 | 29% |
| 2021 Acadia | 29 | 19% |
| 2020 Acadia | 26 | 26% |
| 2018 Acadia | 33 | 8% |
| 2017 Acadia | 61 | 9% |
| 2016 Acadia | 13 | 6% |
| 2015 Acadia | 18 | 7% |
| 2014 Acadia | 45 | 10% |
| 2013 Acadia | 21 | 16% |
Other reported problem areas on the 2019 GMC Acadia
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.