2020 Buick Encore GX engine problems
13 owner complaints filed with NHTSA name the engine on the 2020 Buick Encore GX — 19% of all complaints for this model year.
What owners report
“There was no service engine warning light on my dashboard. Pending codes in the pictures below popped up on my diagnostics tool less than 24 hours after buying the vehicle from an Audi Dealer. The engine went into limp mode as you can see from the picture below that shows Engine Power is Reduced…”
filed Sep 14, 2026
“I am submitting this complaint regarding several serious mechanical and electrical issues with my 2020 Buick Encore GX that raise significant concerns about the vehicle's reliability and safety. Most concerning, I was recently informed by the dealership that my vehicle requires another transmission…”
filed Jul 22, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Special Coverage. Certain 2020 model year Buick Encore GX vehicles, equipped with a 1.2L engine, may have a condition that could cause the turbocharger to fail. If this condition occurs, the Malfunction Indicator Lamp…
N232407740-03 · Warranty Program/Extension · issued Sep 1, 2026
Engine problems in other Encore GX years
| Year | Reports | Share |
|---|---|---|
| 2024 Encore GX | 3 | 10% |
| 2023 Encore GX | 5 | 20% |
| 2022 Encore GX | 4 | 13% |
| 2021 Encore GX | 15 | 29% |
Other reported problem areas on the 2020 Buick Encore GX
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.