Defective "TURBO CHARGER" at 38,091 miles. The defective worn-out or damaged turbocharger was removed from the engine and a new one was installed at a cost of $1816.00. This part should not wear out at 38,000 miles. My mechanic informed me that this is common in the Buick Encore vehicles to experience a defective "TURBO CHARGER" at low vehicle mileage.
Engine & cooling
2020 Buick Encore Engine problems
Owners have filed 7 complaints about the 2020 Buick Encore's engine & cooling with NHTSA - 37% of all its complaints, most recently on February 25, 2026. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
- Complaints
- 7
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Engine complaints
I am co-owner of the vehicle. My daughter was driving the SUV when the Check engine light came on. There was no warning whatsoever, and the turbocharger has gone bad . Prior to the light eliminating there was nothing wrong with the suv. I was driving the suv when the check engine light came on. I also own another 2020 Buick encore where this also happened. I was driving the vehicle when the check engine light came on with no prior warning and it was a failed turbocharger. There is something wrong with these vehicles .
On 4/24/25 I noticed a pungent odor (like rotten eggs). The odor is worse today. I did research and it appears there may be a problem and or leak with the catalytic converter. The emissions are making me and my kids feel sick, nauseous, headache, irritated eyes, etc.
Unknown issues w/ sensors and wiring lead to turbocharger failure. This led to spontaneous acceleration issues on the highway. Less than a year after the warranty covered the replacement of the turbocharger (less than 60k miles on the car) the turbocharger again failed (64k miles on car).
Engine light is on and vehicle is sluggish on hills and keeping up in traffic. Rpms run high if I try. Error code p0299 shows on scanning device- turbo under boost. I have 112,000 miles and need turbo replaced already. this vehicle is very well maintained. I did see a special notice for the GX version of this vehicle. But dealer says my vin does not qualify
I was told there was a recall on my engine. My check engine light is on. My car doesn't speed up pass 75. When I try to speed up I can feel the gears change.and the car jerks
Purchased new buick encore 2020 on 05/22/2000. Previous vehicle was honda civic. Encore never seemed to have enough power & would downshift. On 10/19/20 there was an issue action requested) detected by buick but I was not notified. Then on 10/28/2020, we were diving the vehicle when it seemed to loose power & an 18 wheeler almost hit us. Encore has 5,302 miles on it. 10/28/20 3:41 P.M. Message from buick dx. The engine and transmission system is not performing as expected. An issue has been detected in the air...
Read the full complaint
induction system which monitors and controls air intake to the engine. We were traveling from medical appointments & almost did not make it home. The vehicle is very dangerous & is at the dealer now. I am severely disabled & ill and bought this vehicle for medical appointments out of town. It has clearly had a problem since it was purchased. I will not pick up the vehicle from the dealership no matter how they try to fix it at is extremely dangerous when loosing power. We were on an interstate when this started happening. Thank you.
Buick Encore engine complaints by year
Encore engine problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data