There are 4 stored owner reports matching the powertrain & transmission leading-label group for the 2020 Buick Encore in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)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 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.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.