2021 Buick Encore GX Electrical system Problems
- Complaints
- 4about this part
- Share
- 8%of 53 total for the year
- Median mileage
- 17,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electrical system of the 2021 Buick Encore GX, 8% of the 53 complaints for this model year. Where a mileage was given, the median is 17,500 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“When trying to park/shut off, the vehicle gives ‘shift to park’ error message upon shifting to park and won’t shut off or when starting will give ‘shift to park’ error message and not start. This seems to be a common issue with this vehicle model…we could really use a recall”
NHTSA complaint #11710497, filed 2026-01“The contact owns a 2021 Buick Encore GX. The contact stated that during a routine oil change at the local dealer, the contact informed the dealer that while in the park or shifting to park, the engine was shutting off unexpectedly. The message to “Shift to Park” was displayed and the vehicle was difficult to turn off. The contact wiggled the ignition to shut off the vehicle. There were no warning lights illuminated. The failure persisted over time. The contact was concerned about being stranded due to the failure. …”
NHTSA complaint #11713934, filed 2026-01, 17,500 miles“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. …”
NHTSA complaint #11749150, filed 2026-07Related service bulletins
- 11024331Sep 3, 2025This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.
- 11019017Apr 10, 2025This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017244Mar 31, 2025The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 11017207Mar 21, 2025This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 11016948Mar 14, 2025This service bulletin provides repair information to correct a customer concern of Vehicle Will Lock and Unlock (Active Functions Work) but Will Not Crank or Start (Loss of…
- 11017035Mar 13, 2025This service bulletin provides repair information to correct a customer concern of Vehicle Will Not Lock and Unlock (Loss of Active Functions) Crank or Start (Loss of Passive…
- 11016946Mar 13, 2025This service bulletin provides repair information to correct a customer concern of No Crank, No Start, Quick Start/Stall, No FOB Detected, Key FOBs Inoperative, B3924 00, B3925…
- 11017031Mar 12, 2025This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- 11016943Mar 11, 2025This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.
Electrical system: other model years
Other parts of the 2021 Buick Encore GX
15 complaintsTransmission and drivetrain
11 complaintsBrakes
8 complaintsFuel system
7 complaintsOther or unknown
6 complaintsEngine cooling
4 complaintsEquipment
2 complaintsForward collision avoidance
2 complaintsLane departure
2 complaintsVehicle speed control
2 complaintsAir bags
1 complaintsBack-over prevention (rear camera)
1 complaints
← All problems reported for the 2021 Buick Encore GX
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology