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Engine & cooling

Buick Regal Engine problems by year

785 complaints filed with NHTSA about the Buick Regal's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Engine complaints by model year

YearEngine complaintsCrashesInjuriesRecalls
20193000
20185000
20166000
20159000
20149000
201310000
201221000
2011111230
20101000
20091000
20051000
200425002
200337103
200250123
200187013
200061103
199992023
199886123
199741003
199638010
199518000
199416000
19936000
19928100
199112010
19906000
19899100
19887000
19872000
19862000
19853000
19841000
19831000
19780001

Engine recalls

Engine

15V201000330,742 vehicles affected

General Motors LLC (GM) notified the agency on April 2, 2015, that they are is recalling certain model year 2004 Buick Regal vehicles manufactured April 9, 2003, to June 1, 2003, 2004 Chevrolet Impala vehicles manufactured April 8, 2003, to June 23, 2003, and...

Latest Regal engine complaints

2011 Buick RegalTransmission & drivetrainElectrical systemEngine & cooling

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 Incident Power train · Electrical system · EngineNHTSA 11737701
2011 Buick RegalEngine & cooling

The contact owns a 2011 Buick Regal. The contact stated that while driving at 30 MPH, the vehicle stalled with the check engine warning light illuminated. The vehicle was able to be restarted. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 140,000.

Filed Incident EngineNHTSA 11692104
2016 Buick RegalAcceleration & cruise controlWheels & tiresEngine & cooling

My Buick stops when driving unknown when it's a surprise lights and dash go off almost got hit took to mechanics it's the 2016-17 "throw away motor" ad they call it does not last and gets"metal pieces" to ruin motor and turbo as I have noticed speed issues and dying unexpectedly it's the regal turbo 2.0 v-6 motor a should be recall I've seen online since at mechanic and a large issue why no recall and I'm reporting this ty

Filed Incident Vehicle speed control · Wheels · EngineNHTSA 11667836
2018 Buick RegalElectrical systemEngine & cooling

This issue is related to the gear shifter on the vehicle. When stopping the car and putting it into park the dashboard shows the message "Shift to Park." this vehicle has only 50,000 miles on it and this issue cause safety issues as the battery on the vehicle will drain as the car can't be turned off with this message. This issue has been reported for this vehicle in NHTSA Bulletin #10252775. However, the manufacturer is stating that it doesn't link to the cars VIN #. With 10 years + of vehicles in the GM family showing this issue and the issue being all over the internet, the issue must be reported for this vehicle.

Filed Incident Electrical system · Unknown or other · EngineNHTSA 11650765
2013 Buick RegalTransmission & drivetrainElectrical systemEngine & cooling

I have a continuous problem where the vehicle goes into limp mode/reduce power mode it studders and stalls out. The check engine and stabilitrak light comes on. It is extreamly dangerous at it happens on the road and in traffic. I have thousands of dollars, a new thortle body sensor, a new crank positioner, new timing chain, new ECM, new gaskets and so much more.

Filed Incident Power train · Electrical system · EngineNHTSA 11648213
2019 Buick RegalTransmission & drivetrainEngine & cooling

PCV system failed causing excess pressure to blow out the rear main seal and crankcase seal resulting in an oil leak. No lights and no codes were on the dashboard. The only symptom was a high pitched squealing sound during very cold weather. The problem has been reproduced by the dealer. The problem first appeared the first winter owning the vehicle.

Filed Incident Power train · EngineNHTSA 11642534
2015 Buick RegalEngine & cooling

The contact owns a 2015 Buick Regal. The contact stated while driving at an undisclosed speed, upon reaching a stop light, the vehicle inadvertently lost motive power and was able to restart. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who was unable to determine the cause of the failure. The vehicle was not repaired. The vehicle was then...

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taken to the dealer, who determined that the engine was experiencing a vacuum leak. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 102,000.

Filed Incident EngineNHTSA 11604819
2015 Buick RegalEngine & cooling

Excessive oil consumption on the 2.4L engine. GM has known about the oil consumption on these engines for a long time and if oil is not consistently checked and topped off it will seize the motor while driving

Filed Incident EngineNHTSA 11590376
2016 Buick RegalEngine & cooling

The contact owns a 2016 Buick Regal. The contact stated while driving 35-40 MPH, the check engine warning light illuminated, and the vehicle started sputtering. The contact veered to the side of the road and turned off the vehicle for 5-10 minutes. The contact stated that upon restarting the vehicle, the failure was no longer present. The contact drove to the residence. The contact stated that the failure recurred while driving. The vehicle was taken to the dealer, where it was diagnosed that the cylinder #1 coil...

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pack and spark plug needed to be replaced. The vehicle was taken to an independent mechanic, where all the coil packs and sparks plugs were replaced; however, the failure recurred several days later. The vehicle was taken back to the independent mechanic, where it was determined that the failure was related to TSB Number: 16-NA-383 (Engine and Engine Cooling). The dealer was contacted and informed the contact that the TSB was VIN specific, and the vehicle was not covered. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 85,900.

Filed Incident Engine and engine coolingNHTSA 11585149
2011 Buick RegalBody, doors & structureEngine & coolingDriver assistance

The cars mileage was altered due to car being wrecked prior and the other car that was used to replace wrecked parts was hidden and vin number was altered. Copart Inc and ICT Sharp Rides are party's involved, I bought car on 12/28/2023 mileage was listed as 132525

Filed Incident Structure · Engine · Lane departureNHTSA 11583341
2001 Buick RegalEngine & coolingFire

On [[redacted]], my son drove the car to Wendy's to get lunch around 12:30 pm. He returned, parked the car in the driveway. My son entered the house and while we were eating lunch the doorbell rang, it was the police informing us that my car was on fire in the driveway. The fire department was called and they eventually extinguished the fire which started under the hood of the car. The jaws of life were used to cut the hood of the car loose to fully extinguish the fire. The car is destroyed. There is no fixing it....

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Marion, Virginia Fire Department extinguished the fire and stated that a report could be obtained but they were positive the fire started in the engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Incident EngineNHTSA 11569322
2011 Buick RegalTransmission & drivetrainEngine & coolingFuel systemCrash

Preparing to park into a parking space in an off street parking lot the vehicle forcefully and rapidly accelerated on its' own and crashed into a fence. I was not accelerating. I attempted to stop the car using the brakes but they did not engage quickly enough to stop the rapid, forceful, and without warning acceleration. Buick has been contacted about the defect. Buick ran extensive diagnostics on the car and denies there is a defect. Police came to the scene and advised that given the 2 other incidents that I have experienced, the car is unsafe to drive given potential damage to others. A police report was filed.

Filed Incident Power train · Engine · Fuel / propulsion systemNHTSA 11552417
2011 Buick RegalTransmission & drivetrainEngine & coolingFuel system

When pulling into parking space the car rapidly accelerated on its' own and crashed into the car in the next parking space. I did not have my foot on the gas, the car was simply idling. The acceleration was so rapid that applying the brake was useless.

Filed Incident Power train · Engine · Fuel / propulsion systemNHTSA 11552410
2011 Buick RegalTransmission & drivetrainEngine & coolingFuel systemCrash

I was parking in marked space. I had turned into space, my foot was off the gas pedal. The car was 3/4 into the space when it malfunctioned and rapidly accelerated into a hardened snow bank. i instantly braked but there was not enough space to avoid collision.

Filed Incident Power train · Engine · Fuel / propulsion systemNHTSA 11552406

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

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