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ProblemsByVin Index / 2021-BUICK-ENCORE-GX / COMPLAINTS
Full complaint record · NHTSA

2021 Buick Encore GX owner complaints

48 complaints filed with NHTSA on this vehicle , including 2 reporting a crash, fire, injury, or fatality. Showing the 300 most recent — grouped by category for scanning.

engine 9 complaints shown

15 total in this category · moderate · avg repair $3,100 · see engine cluster analysis →
12/12/2025 52,590 mi ODI #11704676.0

The contact owns a 2021 Buick Encore GX. The contact stated while depressing the brake pedal to make a right turn, there was an abnormally loud popping and scrapping sound coming from underneath the vehicle. The contact pulled over to the side of the road. Upon exiting and inspecting the vehicle, the contact became aware that the exhaust manifold had detached from the vehicle. The vehicle was drivable and was currently parked at the residence. The vehicle was not diagnosed or repaired by a dealer or an independent mechanic. The manufacturer was not notified of the failure. The approximate failure mileage was 52,590.

10/15/2025 ODI #11693594.0

Evap leak detection pump failed at 78,871 miles. 2022 models and beyond are covered for this defect.

10/15/2025 ODI #11693596.0

Evap leak detection pump failed at 78,871 miles. 2022 models and beyond are covered for this defect.

10/10/2024 ODI #11619062.0

The check engine light will come on with engine power reduced, code reads turbo under boost, The car will stay in limp mode and make it difficult to get out of traffic there is no warning before the car completely loses power and goes into limp mode!!

10/06/2021 9,000 mi ODI #11435680.0

The contact owns a 2021 Buick Encore GX. The contact stated that while at a stop sign, the RPM was fluctuating from 0 to 3,000 RPM. The contact stated that the vehicle stalled with the check engine warning light illuminated. The vehicle was able to be restarted. The contact mentioned the failure recurred multiple times with the vehicle being unable to be restarted. The vehicle was taken to the dealer where it was diagnosed that the emergency jack needed to be repaired under recall. The vehicle was repaired however, the failure persisted. The vehicle was taken back to the dealer for a second time however, the failure was undetermined. After the third failure, the vehicle was diagnosed with an unknown software needing to be reprogrammed. The vehicle was diagnosed a fourth time and the contac

09/22/2022 ODI #11485788.0

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? I cannot pass anyone - the speed isn't there. I can't just pull out or even merge onto the interstate for fear of being ran over. And GM does not appear to care. I've been told by multiple dealershi

09/20/2022 43,000 mi ODI #11485494.0

The contact owns a 2021 Buick Encore GX. The contact stated while driving approximately 60 MPH, the check engine warning light illuminated with the “Engine Power Reduced message displayed. The contact stated that the vehicle lost motive power and the vehicle failed to exceed 25 MPH with the accelerator pedal depressed. The contact stated that the loss of power had become a recurring failure and occurred at various speeds. The contact had taken the vehicle to a local dealer, who diagnosed that the intercooler on the turbo needed to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle was returned to the dealer multiple times for the engine failure. The manufacturer had not been informed of the failure. The failure mileage was approximately 43,000.

09/11/2024 45,000 mi ODI #11614068.0

The contact owns 2021 Buick Encore GX. The contact stated while driving 70 MPH and accelerating, the check engine warning light illuminated. The vehicle was taken to an independent mechanic and was diagnosed with turbo charger failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 45,000.

08/08/2024 ODI #11607294.0

Have had my car in the shop multiple time to be put on computer. It states under boost in the turbo. This car is barley 3 years old . And when the check engine light comes on the car goes into limp mode. This is just crazy . I've read more and more people complaining about this but buick doesn't want to do anything about it

powertrain 4 complaints shown

10 total in this category · moderate · avg repair $2,500 · see powertrain cluster analysis →
12/11/2023 ODI #11559624.0

I bought my vehicle the later part of 2021 and the transmission and engine no longer work and need to be replaced. When I first purchased the vehicle the battery completely died in less than 6 months. Numerous repairs and now the warranty won't work since I am over 60000 miles even though I have not met the expiration date on my warranty. They want to charge me between 8000-12000 for repairs.

10/02/2024 ODI #11617636.0

I went off the road after my check engine light came on and my vehicle decided to jerk and wouldn’t go over 66 miles. It happened randomly

09/23/2024 61,000 mi ODI #11615896.0

The contact owns a 2021 Buick Encore GX. The contact stated that while shifting to park(P) and attempting to turn off the vehicle, the message to shift to park(P) was displayed on the instrument panel. The contact removed the key from the vehicle, but the vehicle failed to turn off. The battery had to be disconnected to turn off the vehicle. The vehicle was taken to the dealer to be diagnosed; however, the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was made aware of the failure and confirmed that the VIN was not under recall. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 61,000.

09/01/2025 ODI #11684331.0

When I put my car into Park, a bell alarm sounds and a message shows up to put the car into Park. While it’s already in Park. I then push the stick shift forward and the bell alarms stops and message disappears.

equipment 2 complaints shown

08/19/2021 ODI #11429736.0

The contact owns a 2021 Buick Encore. The contact had received notification of NHTSA Campaign Number: 21V440000 (Equipment) however, the part to do the recall repair was not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The vehicle was taken to the dealer for the recall repair however, the dealer removed the emergency jack and cleared the recall but failed to provide a replacement jack since parts were not yet available. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

08/02/2021 ODI #11427472.0

The contact owns a 2021 Buick Encore GX. The contact had received notification of NHTSA Campaign Number: 21V440000 (Equipment) however, the part to do the recall repair was not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the recall but informed the contact that parts were not available. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

suspension 1 complaint shown

11/19/2024 76,000 mi Crash ODI #11626175.0

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 NH

other 1 complaint shown

11/11/2025 ODI #11698770.0

2021 Buick Encore with 25000 miles. Warning message “SHIFT TO PARK” while vehicle is in park. Dealership says shifter and knob need replaced at an out of pocket cost to me of nearly one thousand dollars. GM has already settled claims for this problem with Chevrolet owners.

steering 1 complaint shown

09/01/2021 ODI #11431435.0

Driving at 5:10pm on aug 31, 2021 first my power steering warning comes on my dash. Then my brake light comes on in red. I was just starting to move w traffic and I turned down a side street. No brakes or steering I did slow down enough to put in park. Only 4000 miles on vehicle. Called on star They called tow truck took to dealership where I got the encore

brakes 1 complaint shown

6 total in this category · severe · avg repair $450 · see brakes cluster analysis →
08/22/2024 2,500 mi 1 injury ODI #11610192.0

The contact owns a 2021 Buick Encore GX. The contact stated while driving at approximately 35 MPH, the brake pedal was lightly depressed and the vehicle unintentionally came to an instant stop; the vehicle then began to shudder. The contact's mom was seated in the front passenger side of the vehicle and sustained a neck injury after the failure occurred. There was no one injured that was not in the vehicle. No medical attention was required. The vehicle was drivable and was driven to a dealer who did not provide a diagnosis but informed the contact that, the failure may have been occurring due to the Vacuum Module in the braking system needing to be replaced. The vehicle was repaired; however, the failure still occurred. The manufacturer was made aware of the failure. The failure mileage w

electrical 1 complaint shown

08/16/2025 ODI #11681121.0

This is an ongoing issue that I have brought to the NHTSA's attention before, which resulted in a special coverage program being issued; however, now GM is not willing to assist me with the special coverage program due to a branded title (used vehicle), and the condition is only getting worse. Tonight, on August 16th, my vehicle experienced a complete loss of power, including engine functionality and fuel/propulsion systems. This stems from the original complaint I filed last fall (11614068) in relation to the turbocharger. I was advised by GM that they would not service my vehicle multiple times by rude supervisors, as my vehicle did not qualify under the special coverage because it's not a "safety issue:", and that the NHTSA has not issued a safety recall for this issue, when it's a safe

Showing 300 of 48 total complaints. The full federal record is available at nhtsa.gov/vehicle/2021/Buick/Encore GX#complaints.
Source: National Highway Traffic Safety Administration (NHTSA) owner complaint database. Last synced 2026-06-14. Complaints are owner-submitted and unverified — the existence of a complaint is not proof of a defect, but a pattern of complaints around the same component is a signal worth weighing. Verify any specific filing at nhtsa.gov.
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