2020 Buick Encore Electrical system Problems
- Complaints
- 4about this part
- Share
- 21%of 19 total for the year
- Median mileage
- 9,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electrical system of the 2020 Buick Encore, 21% of the 19 complaints for this model year. Where a mileage was given, the median is 9,500 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.
“I was driving on the interstate and the vehicle was in cruise control. It acted as it was accelerating and then the cruise control quit and I lost speed. I regained speed and then it lurched again; the cruise control again went off. When I applied the brake to pull to the side of the road, the engine started to throttle up and accelerate, I had to brake harder to come to a full stop.”
NHTSA complaint #11353102, filed 2020-09, 9,500 miles“Imthe original owner and purchased the car new 4 years ago. At 89,000 miles, the check engine light came on indicating codes for emission controls not working efficiently. Later additional codes indicated problems with the fuel evaporator. The car started having problems every time I filled up the gas tank it would stall, hesitate and have problems starting shortly after the fill up. Problem also occurred if I let the fuel level run down to 1 gallon when the reserve indicator light came on the fuel tank. So now I fill up when I reach a quarter tank. …”
NHTSA complaint #11588190, filed 2024-05“The horn goes off automatically when the car is started. The fuse must be pulled out to stop it. Dash radio and phone not working properly. Cruise control not working.”
NHTSA complaint #11457922, filed 2022-03Related service bulletins
- 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…
- 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.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014239Jan 29, 2025This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during…
- 11014222Jan 28, 2025This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
- 11013269Jan 16, 2025This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 1 | 11% |
| 2020 | 4 | 21% |
| 2019 | 10 | 11% |
| 2018 | 9 | 12% |
| 2017 | 4 | 4% |
| 2016 | 9 | 11% |
| 2015 | 30 | 24% |
| 2014 | 13 | 22% |
| 2013 | 8 | 15% |
Other parts of the 2020 Buick Encore
7 complaintsFuel system
4 complaintsTransmission and drivetrain
4 complaintsBrakes
3 complaintsOther or unknown
3 complaintsVehicle speed control
3 complaintsAir bags
1 complaintsLatches, locks and linkages
1 complaintsSteering
1 complaintsTires
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2020 Buick Encore
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