2018 Buick Enclave engine problems
13 owner complaints filed with NHTSA name the engine on the 2018 Buick Enclave — 20% of all complaints for this model year.
What owners report
“Exhaust leak from broken front exhaust pipe. This has been a known defect in this make/model however the year of my vehicle was not included in the extended repair window and should have been. The exhaust leak was identified by the dealership when the vehicle was taken in for other maintenance. I…”
filed May 5, 2026
“Wednesday August 6th 2025, I was coming home from work, the low engine compression and engine light came on the car was shaking and I lost power on a busy road, I had to pull it off the road quickly before I lost all power. I stayed there for a few minutes, then turned the car back on to retreat to…”
filed Aug 25, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Enclave years
| Year | Reports | Share |
|---|---|---|
| 2025 Enclave | 4 | 11% |
| 2023 Enclave | 2 | 11% |
| 2021 Enclave | 2 | 8% |
| 2020 Enclave | 15 | 27% |
| 2019 Enclave | 12 | 29% |
| 2017 Enclave | 5 | 3% |
| 2016 Enclave | 8 | 6% |
| 2015 Enclave | 12 | 7% |
| 2014 Enclave | 17 | 6% |
| 2013 Enclave | 13 | 19% |
| 2012 Enclave | 24 | 18% |
| 2011 Enclave | 33 | 16% |
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.