2011 Buick Enclave engine problems
34 owner complaints filed with NHTSA name the engine on the 2011 Buick Enclave — 16% of all complaints for this model year.
What owners report
“I drove to work just fine on May 19th, 2020, when I got off work around 3pm. I started the car and as I was about to pull out on Brightleaf BLVD in smithfield, NC my car just stopped. I contacted OnStar and they pulled many codes P02AD,P0300 x2, P0305 x 2 at 126,362 miles with 73% oil life…”
filed Aug 31, 2026
“While driving at 60 mph around a curve with an incoming semi, the car suddenly lost power and the steering locked up. By the grace of God, we were able to avoid the semi and get it off the road. Had it towed to mechanic who said the engine was blown. Regular maintenance always kept. Just had oil…”
filed Aug 10, 2023
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 | 10% |
| 2021 Enclave | 2 | 8% |
| 2020 Enclave | 15 | 26% |
| 2019 Enclave | 12 | 29% |
| 2018 Enclave | 13 | 20% |
| 2017 Enclave | 5 | 3% |
| 2016 Enclave | 9 | 6% |
| 2015 Enclave | 12 | 7% |
| 2014 Enclave | 17 | 6% |
| 2013 Enclave | 13 | 19% |
| 2012 Enclave | 24 | 18% |
Other reported problem areas on the 2011 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.