2018 Buick Enclave power train problems
15 owner complaints filed with NHTSA name the power train on the 2018 Buick Enclave — 23% of all complaints for this model year.
What owners report
“After two transmission flushes and being told by a Buick dealership's service technicians that nothing is wrong with the vechile's transmission, it has now failed completely at ~90k miles.”
filed May 12, 2026
“The contact owns a 2018 Buick Enclave. The contact stated that while at a stop light, the accelerator pedal was depressed; however, the vehicle failed to respond as intended, with a grinding sound coming from the transmission. A bystander pushed the vehicle to the side road, and the vehicle was…”
filed Mar 23, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Enclave years
| Year | Reports | Share |
|---|---|---|
| 2025 Enclave | 3 | 8% |
| 2021 Enclave | 2 | 8% |
| 2020 Enclave | 8 | 15% |
| 2019 Enclave | 15 | 37% |
| 2017 Enclave | 4 | 2% |
| 2016 Enclave | 9 | 6% |
| 2015 Enclave | 4 | 2% |
| 2014 Enclave | 21 | 7% |
| 2013 Enclave | 13 | 19% |
| 2012 Enclave | 13 | 10% |
| 2011 Enclave | 38 | 18% |
| 2010 Enclave | 34 | 12% |
Other reported problem areas on the 2018 Buick Enclave
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.