BUICK Complaints

I have continuously had my check engine light pop on. I have took it in twice for them fix the issue which is the purge sensor. It did not fix the issue because the light just pops back on. This has caused issues with me passing emissions and has been an headache shortly street I obtained the vehicle.

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.

When I get to a stop sign, and a stop light, when trying to accelerate after a complete stop, the car would struggle to accelerate to go forward. Where the shifting gears would start blinking, and the warning lights (engine power reduced, engine light, and the traction safety collision light) would display itself making it misfire and impossible to even go forward while pressing the gas pedal. It put me and other drivers at a safety risk because it would roll backwards after taking my foot off the breaks to accelerate where it would almost hit drivers behind me at the stops as well as them almost mistakingly hitting me in the back when my break lights stop reflecting when trying to accelerate at stop lights with traffic. I have had it diagnosed with the recall codes N20231344O GM # 20V668000 NHTSA # 18V576000 18V358000 But the dealships are saying there aren't any recall for the vehicle. This issues is ongoing.

COMPONENT FAILURE: THE ENGINE TIMING CHAIN. YES, IT IS AVAILABLE FOR INSPECTION. SAFETY RISK: VEHICLE HESITATED AND LOST POWER IN TRAFFIC, CAUSING MY VEHICLE TO AUTOMATICALLY SLOW DOWN WHERE I WAS NO LONGER DRIVING AT THE SPEED LIMIT. MY SAFETY AND OTHER DRIVERS AROUND ME WAS COMPROMISED AS THIS COULD HAVE CAUSED A MAJOR ACCIDENT SHOULD I HAVE BEEN REAR ENDED. I HAD IT TOWED TO LAMBERT BUICK, CUYAHOGA FALLS, OHIO. THEY DIAGNOSED A TIMING CHAIN MALFUNCTION WHICH WAS CONFIRMED BY DEALERSHIP DIAGNOSTIC TESTING. I WAS ADVISED NOT TO DRIVE VEHICLE DUE TO ENGINE DAMAGE POTENTIAL. I HAD IT TOWED BACK TO MY HOME AND HAVE NOT DRIVEN IT SINCE. VEHICLE HAS NOT BEEN INSPECTED BY THE MANUFACTURER, POLICE, INSURANCE OR ANYONE ELSE. THERE WAS NO WARNING, MESSAGES OR ANY SYMPTOMS PRIOR TO THE ENGINE TIMING CHAIN ISSUE. A WARNING LIGHT ONLY CAME ON WHEN THE CAR HESITATED AND LOST POWER IN TRAFFIC.

The contact owns a 2018 Buick Encore. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to coast to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the timing chain, resulting in damage to the crankshaft. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 98,507.

On the morning of 11/01/2025, the vehicle was in volved in a fire. The cause of the fire is uncertain so the insurance company is investigating it and asked I report it to the NHTSA.

I had first seen a check engine light for a month and it would come on and off and sometimes it would stay off for about a week before it comes back on and do the same thing. I had noticed some slippage within the transmission a week prior to this incident and was looking to take it in for an inspection but money is tight so I couldn’t afford to go in for an inspection, especially a repair. I was driving to work and the vehicle was doing its slippage and I go about a mile or two until I reach an intersection, I came to a red light and stopped, when it turned green, I started pressing on the gas but the car didn’t move, it only revved. I then proceeded to put it in park and turn it off then on, only for it to do the same thing. So from there I had it pushed off into a nearby parking spot and then towed to a wrenchrite where they had confirmed it had nothing to do with the transmission fluid or anything minor. I then had it taken to Emory Services and they had confirmed the transmission its self had been fried.

Vehicle has rough idle upon start up and randomly rough idle/ acceleration. I have a p0-171 code that comes and goes, Mechanic I took to claims the PCV valve is located in side of the valve cover and feel is the culprit for the issues. Very high vacuum inside engine at this point. No whistling like some have mentioned but if you pull the oil fill or dipstick engine wants to quit and you can tell there is a large vacuum. This is a 2017 cascada and seems to align up with all of the issues that were noted in the complaints. Looking for an extended warranty to get this remedied. Thankyou for your time. current mileage is 90k miles

The contact owns a 2022 Buick Encore GX. The contact stated while driving approximately 20 MPH and depressing the accelerator pedal, the vehicle failed to exceed 35 MPH and made an abnormal loud sound that became louder as the contact continued driving. The vehicle was taken to the dealer, where it was test-driven, and the contact was informed that there was an exhaust leak. The dealer advised the contact that the vehicle was drivable. The contact drove to the residence. The contact stated that upon parking the vehicle, the contact noticed that the exhaust pipe laying onto the ground. The vehicle was towed to the dealer, where it was diagnosed that the exhaust pipe had detached. The dealer determined that the exhaust muffler needed to be replaced, and the dealer ordered the parts. The vehicle was not repaired. The contact related the failure to GM Campaign Number: N242445280 (Special Coverage Front Exhaust Pipe). The manufacturer was notified of the failure and a case was filed, but the contact was informed that assistance would not be provided because the repair was not covered under warranty. The failure mileage was approximately 31,000.

door locks don't work. This is the second time in less than a year. Last time it took Buick 28 days to fix. Vehicle wont lock while driving or when parked. No warning. The dealer has had the vehicle since 10-20-25.