2021 Buick Encore GX Fuel system Problems
- Complaints
- 7about this part
- Share
- 13%of 53 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the fuel system of the 2021 Buick Encore GX, 13% of the 53 complaints for this model year.
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 recently took my vehicle into the classic Chevrolet dealership where it was purchased for the manufacture warranty on a fuel remission pump to be replaced under warranty. When I got my car back when I reverse and switch and to drive it either jumps like it’s not getting gas, and sometimes completely dies in the middle of the road, something is not right and it was not doing that before I took it in to get that manufacturer warranty taken care of”
NHTSA complaint #11569827, filed 2024-02“My vehicle suddenly stalled and completely shut off while I was driving. No warning lamps, messages or other symptoms to alert me there was any engine issues. I was definitely put in danger as I was driving at rush hour in a 6 lane busy US 1 Federal Highway. The vehicle was stalled, without any power, in the middle lane with cars and trucks swerving around me at the last minute. I called 911 immediately and they dispatched cruisers to help push my vehicle across 4 lanes of traffic. This meant having to block 4 lanes of moving traffic. …”
NHTSA complaint #11732027, filed 2026-04“Turbo charger has gone out 4 times since I purchased it in April 2021. I have been on the interstate driving and suddenly my car slows down and a message that says “engine power reduced” comes up and my check engine light comes on. This is dangerous as I was on the interstate with 18 wheelers and could’ve been rear ended and badly hurt or killed. My grandchildren could’ve been in the car with me. When this happens the vehicle slows down considerably and does not accelerate properly. I have to drive in the right lane at a much slower speed putting myself and others in danger. …”
NHTSA complaint #11658466, filed 2025-05“I'm in need of a repair on my 2021 Buick Encore GX. It was seen at GM of Marion on July 30 for a warning light that came on as I was driving down the road after having an oil change. It stated my power was reduced. I took it in, and they told me they had just diagnosed this problem for another Encore owner, and it took two weeks to get the part in. It is now September 22, and I still do not have this fixed. It is a safety concern and I have been calling GM about it almost weekly, trying to get some help. How is it safe for my daughter & I to be driving down the road with only half power? …”
NHTSA complaint #11485788, filed 2022-09Related service bulletins
- 11017173Mar 21, 2025This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- 11012961Jan 16, 2025This Preliminary information communicates a potential for dtc p0496 to fail due to damaged purge solenoid valve O-rings.
- 11012013Dec 16, 2024This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.
- 11007998Aug 23, 2024This bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Loss of Power, Fuel Gauge Inoperative/Erratic, MIL…
- 11006875Aug 10, 2024This bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Loss of Power, Fuel Gauge Inoperative/Erratic, MIL…
- 11007095Aug 7, 2024This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles…
- 11006410Jul 23, 2024This bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Loss of Power, Fuel Gauge Inoperative/Erratic, MIL…
- 11004727Jun 29, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11004761Jun 28, 2024This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or…
Fuel system: other model years
Other parts of the 2021 Buick Encore GX
15 complaintsTransmission and drivetrain
11 complaintsBrakes
8 complaintsOther or unknown
6 complaintsElectrical system
4 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 29, 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