2011 Buick Regal electrical problems

Filed May 13, 2026 · Electrical, Engine · TX

While driving on the highway at 60 mph, warning on dash came on saying “engine power reduced” and drop down speed to around 25 mph and I could not accelerate more than 25 mph on the highway which could have caused an accident because of the traffic flow behind me. I put a code scanner under the dash and it read code P2138, Throttle pedal position sensor switch.

Filed Jun 11, 2023 · Airbags, Brakes · AZ

The two systems that failed are the airbag release on the front passenger side and the stabilitrak system. Both systems show error lights on the dash. The front seat passenger does not have airbag protection. The stabilitrak system error light appears intermittently and when the traction system goes off the car brakes almost stop the car while driving. We go to Royal Buick in Tucson, Arizona. We worked with Germaine Kendrick. I've attached the dealer service invoice dated April 14, 2023. The invoice summarized the problem and stated that 1) a new seatbelt assesmbly is needed and 2) the service technician states that they can not replicate or repair the traction problems. Today is June 11, 2023. We are still waiting for the seatbelt assembly to "arrive". There is no solution for the traction system. We have phoned and texted 4 times. The most recent conversation on June 5th with "Chris" was interesting; Chris stated that the seatbelt part was NEVER ORDERED and furthermore, is not needed to repair the airbag warning light problem.

Filed Sep 25, 2022 · Electrical, Lights · MA

After heavy rain in mid-September 2022, both headlights just stopped working. The dashboard will usually display a warning or pop up symbol that something is not working, but I had no warning and got pulled over driving at dusk with no headlights. There has been been other issues with this vehicle too! The other issues include: Bluetooth connection not working at all, the transmission has “jerking” issues while changing gears and the engine revving too high while only going 30mph while driving in suburban Massachusetts. The car has less than 70k miles, these issues should not be happening. The main issue is the headlights, considering they cost around $200/ea and just stopped working with no notice.

Filed Jul 11, 2022 · Electrical, Lights · GA · fire · 1 injury

I was driving on a back road when my car started smoking and blazed up on passenger side headlights an I see were people have been saying this was seriously fire issue now I'm out of work no car and I was only owner fa 5 months

Filed Sep 7, 2021 · Electrical, Engine · 140,000 miles · MI

The contact owns a 2011 Buick Regal. The contact stated while driving 30 MPH and accelerating to enter the highway, the vehicle stalled. The contact stated that the traction, stability, and engine power reduced warning lights were illuminated. The contact stated she was able to park on the side of the road for 30 minutes before continuing to drive to her destination. The contact took the vehicle to the local dealer however, the mechanic was unable to diagnose the cause of the failure. The contact also stated that she was unable to open the doors due to the battery not charging. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 140,000.

Filed Aug 14, 2021 · Electrical, Transmission · IN

When I shift the car from park to drive it does a VERY HARD jerk. And vehicle has no codes on dash or anything

Filed Jul 20, 2021 · Electrical, Engine · ID · fire

While the vehicle was driving, there was a loss of power, at that moment sparks was seen emanating from under the hood, then the vehicle completely stopped running. Once pulled over smoke was bellowing out from the hood and subsequently ignited into flames. Fire department was dispatched and fire was extinguished. The vehicle was towed away and is still at the tow yard. The tow operator, based on visual inspection stated the fire did start in the engine compartment and spread to the fire wall, totaling the vehicle.

Filed Jul 1, 2021 · Electrical, Lights · WA

Front headlamp burned out due to moisture in the assembly. There is an issue with the ballast in the headlamp assembly for the turbo model. The seal may be faulty due to the headlamp shorting out except for the daytime running lights. I realized that it had malfunctioned and there was moisture in the assembly itself. My repair shop quoted $1500.00 for the repair/replacement as the whole assebly needs to be replaced. This is definitely a safety hazard and a common one for this make and model. This should be a recall due to the faulty headlamp assembly.

Filed Dec 28, 2020 · Electrical, Lights · 127,000 miles · CA

Headlight keeps burning out. It has been replaced 5 times also driver seat heating works for 1 min and turns off

Filed Sep 1, 2020 · Driver assistance, Electrical · 55,000 miles · NC

Tl* the contact owns a 2011 buick regal. The contact stated that there was an abnormally strong odor in the cabin of the vehicle. The contact called john hiester chevrolet located at 3100 n main st, fuquay-varina, nc 27526, (919) 552-4944, to notify the dealer of the failure. The vehicle was also taken to an independent mechanic who was made aware of the failure. The vehicle was not diagnosed nor repaired. The contact received notification of tsb 99-01-39-004g which was related to the failure. The manufacturer was informed of failure. The failure mileage was 55,000.*dt