BUICK Complaints

The break pedal sticks down during high temperatures ( generally during summer months especially when park outside in the sun and high humidity) and causes the brakes to drag and the break pedal doesn’t come up by itself! Also the brake lights stay on. It is very dangerous to drive on this condition. I just want theNHTSA to be aware of this and I have seen a lot of complaints on line I contacted gm and no response! It should be a recall for this! Please, help us with problem

Exhaust leak from broken front exhaust pipe. This has been a known defect in this make/model however the year of my vehicle was not included in the extended repair window and should have been. The exhaust leak was identified by the dealership when the vehicle was taken in for other maintenance. I had to pay for the repair myself and would like to be reimbursed due to this being a manufacturer known defect with the exhaust pipe. The exhaust leak caused unusual noises, a loud roaring, and reduced gas mileage. This was also a danger for carbon monoxide exposure.

Rear window shattered while driving. No rock or other damage. I just heard a loud bang and it exploded

My check engine light continues to turn on and the code is related to the wastegate actuator/turbo charger. My car is running rough and doesn't accelerate properly. It sometimes rocks back and forth when I try to accelerate. Which is a KNOWN PROBLEM WITH BUICK. GMC REFUSES TO RECALL THIS WELL DOCUMENTED ISSUE. And naturally, it becomes an issue after the warranty expires. Mileage: 67,067

The 1.3L turbo caused metal fragments to get into my engine which in return caused the transmission to fail. My 2021 Buick encore gx has been in the shop since early February 2026 at Garber Buick in Fort Pierce Florida. The first diagnosis was solenoids needed to be replaced, after the solenoids were replaced they told me the engine needed to be replaced, once the engine was put in Garber Buick told me the transmission now needed to be replaced. GM motors have been involved I have case number and a case manager who has informed me that not only do they want me to pay 5,600 dollars after the first quote for the engine was 9,800 but they brought that price down to 5,600 they now since its the transmission want me to pay another 6,000 even though the car is only 2021 and the turbo caused all of this to happen. I have done some more research and GM has multiple lawsuits against them for turbo and transmission failures where GM told dealers to downplay issues.

, while driving, doing a steady 25-30 mph my vehicle completed transformed behavior, literally, I could only guess the problem(s)

My Buick Cascada is a 2017 model and has 78,000 miles on it. There was a high pitched whistle/squeal type noise I was hearing and was told by the Buick dealership that it is an issue with the PCV valve failing. To replace this it will cost over $2,000 because of the design of where the valve is housed it is part of a much larger piece. In reading commentary on line i discovered that this is a known issue with the Cascada models from various years. Other year models have been granted an extended warranty to cover the repair. I feel that if it is an issue with multiple years then multiple years should be covered under the warranty. I was advised not to drive my car very far with the issue it has with the PCV valve and I rely on it to get to work every day which is an hour drive one way. I am now forced to give up my car or get it repaired and pay the ridiculous amount of money they are charging for a part that should be able to be replaced for much less had it not been part of the valve cover. Thank you

The contact owns a 2025 Buick Enclave. The contact stated that while driving at an undisclosed speed, the cruise control mode became inoperable, and the vehicle unexpectedly shut off. The contact also stated that while driving at an undisclosed speed, messages related to the braking system, forward collision system and the ABS were displayed. Additionally, the ABS was inoperable during inclement weather, and the vehicle became unsafe to drive. The contact pulled over to the side of the road because children were also inside the vehicle. The contact’s husband then drove the vehicle to the dealer, where the failure was duplicated, and several diagnostic trouble codes were retrieved. The dealer informed the contact that the failure was a known issue and that several technical service bulletins related to the failure had been issued. The vehicle was not repaired. The contact stated that the vehicle was unsafe to drive and posed a risk to the contact and other drivers. The manufacturer was made aware of the failure. The failure mileage was approximately 15,000.

The contact owns a 2017 Buick Envision. The contact stated that while driving approximately 35-40 MPH, the brakes became inoperable. There were no warning lights illuminated. The contact was able to use the terrain-driving system to continue driving. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The vehicle was taken to an independent mechanic who determined that the brake hose to the brake master cylinder had failed, and the brake fluid was extremely low. The vehicle was partially repaired. The front hoses were replaced, and the mechanic informed the contact that the rear hoses needed to be replaced. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 71,069.

I am filing a formal safety complaint regarding a repeated dangerous defect in my 2018 Buick Encore. The vehicle intermittently locks up while driving without warning. When this happens: brakes become unresponsive or lock steering becomes difficult or locks gas pedal does not respond dashboard warning lights activate vehicle systems malfunction vehicle may not shut off normally This defect has occurred multiple times and creates a serious crash risk. The vehicle has now undergone three repair attempts at an authorized Buick dealership. During the second repair attempt, dealership staff personally experienced the same malfunction while test driving the vehicle. I paid approximately $2,078 cash for repairs after being told the issue was fixed, but the same dangerous defect happened again afterward.The vehicle has remained at the dealership for 15+ consecutive days, causing loss of transportation and work hardship. I am also concerned by inconsistent repair documentation and possible repairs performed that were not clearly disclosed or authorized. This vehicle remains unsafe to drive, and the defect has not been corrected despite multiple repair attempts. I believe this may involve a serious electrical, braking, steering, or control system failure that warrants investigation before someone is injured.