2020 Buick Encore Gx problems, complaints & recalls
Most-reported problem areas: Power Train (14) · Service Brakes (11) · Vehicle Speed Control (6)
🧭 Reliability snapshot
Compared against other Buick Encore Gx model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
23 NHTSA complaints that reported an odometer reading.
Safety recalls (2)
Equipment:mechanical:accessory Scissor/Screw/Bottle Jack/Lift:stand 2021-06-10 · campaign 21V440000 · 135,400 vehicles
Defect: General Motors, LLC. (GM) is recalling certain 2020-2022 Buick Encore GX and 2021-2022 Chevrolet Trailblazer vehicles. The emergency jack, if not positioned as directed in the vehicle owner's manual, can fracture while in use.
Risk: A fractured jack can cause the vehicle to collapse, increasing the risk of injury.
Fix: Dealers will replace the jack, free of charge. Interim owner notification letters informing owner of the safety risk are expected to be mailed July 26, 2021. A second notice will be mailed once remedy parts become available. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A212335470.
Service Brakes 2020-09-24 · campaign 20V588000 · 3,677 vehicles
Defect: General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.
Risk: If communication with the sensor is interrupted, the electronic brake boost assist could be lost. Extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash.
Fix: GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is A202307260.
Service bulletins (638)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-10-26 · GM Update N25-250552 · Over The Air
• improvements to onstar functionality.
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Unknown Or Other 2026-09-04 · PIT5995B · Service Bulletin/Repair Instructions
this preliminary information provides the dealer information of the location of the rear seat child anchors.
Engine 2026-09-01 · N232407740-03 · Warranty Program/Extension
special coverage. certain 2020 model year buick encore gx vehicles, equipped with a 1.2l engine, may have a condition that could cause the turbocharger to fail. if this condition occurs, the malfunction indicator lamp (check engine light) will illuminate, and a diagnostic trouble code will set. a
Unknown Or Other 2026-08-28 · PIT6196A · Service Bulletin/Repair Instructions
this preliminary information provides a diagnostic tip for diagnosing an issue with cruise control, adaptive cruise and lane keep assist turns off or inoperative.
Showing the 6 most recent of 638 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-09-26 · Vehicle Speed Control“while driving my 2020 buick encore gx, the vehicle experienced a sudden and dangerous loss of acceleration, immediately dropping into 'reduced engine power' limp mode in active traffic, but no other car was infront or behind my car. a diagnostic scan revealed diagnostic trouble code (dtc) p2138, which triggered the computer's safety override syste…”
2026-09-14 · Unknown Or Other“there was no service engine warning light on my dashboard. pending codes in the pictures below popped up on my diagnostics tool less than 24 hours after buying the vehicle from an audi dealer. the engine went into limp mode as you can see from the picture below that shows engine power is reduced. after researching these error codes, i was made aw…”
2026-09-08 · Power Train“while reversing, the vehicle suddenly jumped/jerked unexpectedly. another vehicle was parked close behind me, and i was afraid my vehicle was going to jump into it because the movement was sudden and difficult to control. on another occasion, while traveling approximately 20 mph through a longer curve, the vehicle suddenly jumped/jerked again and i…”
2026-08-29 · Unknown Or Other“the cluster display shows "shift to park" even while vehicle is stopped, gear shift in park position, and engine is off. …”
2026-07-22 · Fuel/Propulsion System“i am submitting this complaint regarding several serious mechanical and electrical issues with my 2020 buick encore gx that raise significant concerns about the vehicle's reliability and safety. most concerning, i was recently informed by the dealership that my vehicle requires another transmission replacement, despite having the transmission repla…”
2026-06-21 · Power Train“transmission would not connect with the engine. la fontaine dealership in saint clair. said i need a new transmission cost $14,000. it has 59823 miles under the vehicle. …”
2026-04-14 · Unknown Or Other“my 2020 buick encore gx which has only $30,600 had the "shift to park" message appear on the dashboard screen and my car was not turning off properly. i read online that it is a widespread known issue: however, i had to pay $630.14 to fix the gm well know widespread issue so i can turn off my vehicle. this should be covered free of charge by gm as …”
2026-03-24 · Power Train“i am writing to formally report a serious mechanical failure involving my vehicle and to request further review and assistance. while operating my vehicle, it unexpectedly stalled in the middle of an intersection, creating a significant safety hazard. at the time of the incident, the check engine light illuminated and the rpms surged to a range bet…”
2026-02-20 · Power Train“my 2020 buick encore gx is showing a message with accompanying ding ding sounds "shift to park" after i put my car in park. this malfunction will not allow the car to be locked. i see there are many complaints and lawsuits that gm has not attended to. how do we get gm to initiate a recall on something they are and were well aware of. …”
2026-02-17 · Power Train“2020 buick encore gx; pulling out of a service station, my check engine light illuminated, and message on cluster stated: engine power reduced. i loss throttle response for accelerating. accelerator pedal was pushed to the floor and no acceleration. vehicle entered limp mode. drove 15 miles from service station to my home, in limp mode, unable to a…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.