Vehicle does not recognize it is in Park even when the shifter is placed in that position. As a result, the vehicle cannot be turned off. GM has issued a technical service bulletin for this issue, but has not yet performed a recall.

Source: NHTSA complaint ODI #11760794 · view all complaints for this vehicle at nhtsa.gov

While driving check engine suddenly illuminated following by a "warning reduced engine power" message. Car began driving sluggish and driving over 35mph caused serious trembling. After multiple diagnosis with several engine codes pointing to issues with ECM, and mass air flow sensor, and the wiring affliated . I took the vehicle to the GMC dealership to get vehicle serviced and was told the wiring had broken and melted which caused the check engine to come on and the vehicle to drive the way it did. The cause was the zip tie being tied too tight as stated in GMs own bulletin number 22-NA-008. This should be a bulletin it should be a recall!

Source: NHTSA complaint ODI #11749150 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2021 Buick Encore GX. The contact stated that while driving at an undisclosed speed, the brake pedal was firm while depressed, with several unknown warning lights illuminated. The vehicle was taken to an independent mechanic, and several unknown diagnostic trouble codes were retrieved. The vehicle was then taken to the dealer, but the vehicle was not yet diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 20V588000 (Service Brakes); however, the VIN was not included in the recall. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was approximately 81,000.

Source: NHTSA complaint ODI #11747114 · view all complaints for this vehicle at nhtsa.gov

The contact's girlfriend owned a 2021 Buick Encore. The contact stated that while his girlfriend was driving at 20 MPH, an abnormal, snapping sound emitted from the vehicle as the steering wheel independently shifted to the right and crashed into two parked vehicles. The contact stated that the suspension warning light appeared on the instrument panel after the failure and later discovered that the vehicle's suspension had detached. The air bags did not deploy upon impact. The contact's girlfriend was taken to the hospital where she was treated for a laceration on her left forearm which required nine stitches. She also suffered severe bruising to both arms, elbows, and hips. No other injuries were reported. A police report was filed. Upon investigation, the contact linked the failure to NHTSA Campaign Number: 21V633000 (Suspension). The vehicle was initially towed to an independent tow yard and later to an independent body shop. The insurance company later deemed the vehicle a total loss. The manufacturer was notified of the failure; the contact was given a case number and an investigation into the failure has been started. The failure mileage was approximately 76,000.

Source: NHTSA complaint ODI #11626175 · view all complaints for this vehicle at nhtsa.gov

The Frontview camera or its software is the issue. It allows the car to drift outside of the lane on both sides of the car before warning and or pulling you back over but then it just pulls you to the other line and lets you cross it back and forth if you let it and every time crossing the line. Extremely dangerous if you don't know that it's not functioning correctly. Also her adaptive cruise control doesn't work and I know for a fact it uses the same camera to work to be able to tell when a vehicle is ahead of you which her car does show the symbol for when a car is ahead of you but it doesn't slow down her cruise control leaving a gap between the 2 cars so again if you didn't pay attention you could smash right into the car ahead of you. I took it to one Buick dealer and they said there was nothing they could do but after research I learned it can easily be reprogrammed with the right obd2 computer and either driving it to recalibrate or doing a static calibration in a shop. I do know that there are service bulletins slightly related to this.

Source: NHTSA complaint ODI #11760679 · view all complaints for this vehicle at nhtsa.gov