BUICK Complaints

I am filing this safety complaint regarding a sudden and dangerous engine failure in a 2010 Buick Enclave CXL purchased from Frankfort Car Outlet on 8/25/2025. On 10/25/2025, while driving on the expressway, the engine suddenly began knocking, lost power, and stalled. This created a serious safety risk to myself and other drivers. The failure occurred only 60 days after purchase and approximately 2,000 miles later, suggesting a pre-existing internal defect that the dealership did not disclose. The dealership has refused to inspect the vehicle, acknowledge the safety risk, or assist in any way. This type of sudden engine failure could pose a serious hazard if similar vehicles have the same issue, and I believe NHTSA should be aware of the potential risk.

On August 13, 2025, I purchased the 2025 Buick Envista from DeMontrond in Houston, Texas, for $31,000.00, with a down payment of $12,000. The car is a gift to my grandson who recently graduated from college and starting a job at the Emory University Hospital. On September 6, 2025, the car had to be taken to be repaired due to a “fuel filler pipe leaking”. I didn’t expect that a brand-new car would need to be repaired for something that seems to be dangerous. The fuel filler pipe is crucial for the safe and efficient transfer of fuel to the vehicle's tank. It connects the fuel cap to the fuel tank, ensuring that fuel flows properly without spills or leaks. A leaking fuel filler pipe can lead to fuel vapors escaping, which can be dangerous and illegal in most states. It can also cause issues with the vehicle's EVAP system, leading to diagnostic trouble codes related to fuel vapor leaks. I contacted General Motors Consumer Department and sent a letter to Mr. Mark Reuss, President of GM requesting that the vehicle be replaced or the money I paid be refunded. They refused to replace the vehicle or refund the money I had already paid. Through this letter, I am requesting your help to have GM recalled the vehicle and that I am provided with a brand-new and safe replacement or to refund me the money I already paid.

The infotainment system blacks out intermittently. The speakers will go out along with the infotainment. This has happened on several occasions I have pictures that are dated and time stamped. All the lights on the infotainment went out to include the odometer as I was operating the vehicle. I first thought the vehicle cut off then moments later the infotainment turns on and the speakers and odometer is working again. This has happened intermittently on multiple occasions. The vehicle has gone to the dealer 3 times but they are stating they can’t duplicate. So they can not fix it and issue is not resolved.

Vehicle was started and started misfiring and then shut off, no check engine lights came on. Tried to restart the car and it continued to misfire but eventually stopped. Car also misfires sometimes after refueling. Car was taken to dealership to be looked at and there were no findings of any issues, they suggested it was bad gas.

Brake booster has gone out at 100,000 miles. Brakes do not work when vehicle is first started. Problem was diagnosed by an independent mechanics shop. There was no warning light until after the first incident.

The contact owns a 2018 Buick Enclave. The contact stated that after picking up the vehicle from the dealer for a different failure, the exhaust pipe made an abnormally loud sound while driving. The check engine and other unknown warning lights were illuminated. The vehicle was taken back to the dealer, who determined that the catalytic converter had failed and informed the contact that the catalytic converter and the front exhaust pipe needed to be replaced. The vehicle was not repaired. The contact related the failure to Special Coverage Adjustment: N212356540 (Front Exhaust Pipe); however, the VIN was not covered. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA Hotline. The failure mileage was approximately 100,000.

The contact owns a 2018 Buick Encore. The contact stated that while driving at 40 MPH, the vehicle lost power. The Stabili-trak warning light was illuminated. The vehicle was taken to a dealer where the failure however, where the failure was not duplicated. The vehicle was taken to the same dealer and was diagnosed and determined that the brake sensor needed to be replaced. The vehicle was repaired, but the failure reoccurred approximately 6 months later. The vehicle was taken to an independent mechanic, where an unknown code was cleared. The contact stated that a month after the code was cleared, the failure reoccurred. The manufacturer was not notified of the failure. The failure mileage was approximately 20,401.

My check engine light has been appearing off and on for a few months. I received a diagnostic code of P0325 TWICE by two different professional technicians. I ordered an OEM knock sensor, hired a technician to replace the knock sensor, drove about 10 miles and the check engine light came back on. Then, I received a diagnostic code of P-1101, and the recommended solution is to replace the intake manifold and all necessary gadgets. After speaking with professional technicians and doing thorough online research, I discovered that General Motors issued a service bulletin No. 19-NA-101, dated July 2024, covers certain 2013–2019 model vehicles (including Buick Encore with 1.4L turbo) for oil consumption and/or leaks caused by a missing non-return valve in the intake manifold. The bulletin acknowledges that the intake manifold design on these 1.4L turbo engines has a non-return (check) valve or PCV system component inside the manifold that can fail or go missing, leading to issues like boost/vacuum leaks, oil consumption, engine performance faults. •The PCV valve is non-serviceable (you can’t replace it separately), meaning the only fix is replacing the manifold — which GM calls out in the bulletin. If GM or Buick hasn't issued a recall they should offer goodwill assistance especially since this is a defect on their end.

Brought my car to get an oil change and was told they could not do it as my oil filter housing unit is cracked and leaking oil they said to check for recalls as this is an issue with other vehicle same problem. Upon checking i was informed that Buick is not making this a recall item at this time. They put in enough oil for me to get home.

The shifter assembly failed. When shifting to Park, a "Shift to Park" message appears on the driver information center. Although the shift lever is in the Park position, it is not recognized, and the car cannot be turned off or locked. The selling dealership inspected and confirmed the failure, which first appeared at about 21,000 miles (2023 model). The solution was to replace the shifter assembly (car is out of warranty by less than one month), at a cost of $562.10. Invoice breakdown: 1) Labor = 350.00, 2) Parts = 169.50, 3) Sales Tax = 42.60 It is interesting to note that the Labor rate of 350.00 is almost certainly a "flat rate", as the time to complete the repair was only about 30 minutes.