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.

- Natick, MA, USA

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.

- Natick, MA, USA

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.

- Natick, MA, USA

The contact owns a 2011 Buick Regal. The contact stated while driving approximately 10 MPH, the vehicle shut off without warning. The vehicle was able to be restarted but continued to experience the same symptoms. The contact stated no warning lights were illuminated. The vehicle was towed to a local dealer where it was diagnosed with needing the transmission replaced. The manufacturer was not informed of the failure. The failure mileage was approximately 69,000.

- Mount Vernon, NY, USA

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

- Alexandria, IN, USA

When driving to the grocery store one day the car wasn't accelerating properly. When O leave the store the car won't move when in reverse, the engine will rev but no movement. Got the diagnostic done and with less then 59000 miles my transmission failed.

- Upper Darby, PA, USA

None of the 4 recalls were fixed on this 2011 Buick Regal cxl 2.4L car when I purchased this car at billion auto in Iowa city, Iowa. The stabilitrak is bad and was never brought up in the process of purchasing the car and I have had to change my brakes, rotors, and calipers in the rear both sides 3 times in the last 2 years. I'm not happy.

- Wapello, IA, USA

I was driving down the city road and my car just shut off and lost all power to everything. I almost got hit. I then turned my car back on and the service stability trac light came on and the check engine light was flashing. I could nearly get it to go at all and my car was shaking and sputtering. It was the scariest thing I have ever dealt with. I had it put in the shop on 10/26/2018 and now it just happened to me again and its 03/26/2020.

- Tulsa, OK, USA

The contact owns a 2011 Buick Regal. While driving approximately 35 mph, the vehicle stalled. There were no warning indicators illuminated. The contact started the vehicle normally after a few minutes. According to the contact, the carfax report indicated that the transmission was replaced prior to him purchasing the vehicle. The vehicle was not taken to the dealer or an independent mechanic for diagnostic testing. The manufacturer was notified of the failure. The vehicle was not repaired. The approximate failure mileage was 133,000.

- Winston-Salem, NC, USA

Reference the below background information on GM's L4 - 2.4L 4 cylinder engines: Please reference document id: 4821148 #12313D: Special coverage - engine balance chain and fuel pump - (June 6, 2017) this special coverage bulletin was provided by my mechanic at midas from the alldatapro.com website. Special extended warranty repairs are supposed to be covered via this bulletin for 120,000 miles or 10 years for GM vehicles that have the L4 engine including the 2011 Buick Regal. My 2011 Buick Regal is definitely exhibiting all symptoms / problems that are well known with the General Motors L4 - 2.4 L four cylinder engine. See information below about oil consumption and engine performance symptoms: Https://www.msn.com/en-us/autos/research/seven-engines-to-avoid-like-the-plague/ar-aavz7vm#page=3 I am a former GM powertrain division engineering / salaried employee where I had a 20 year career background with engines and transmissions. The L4-2.4L engine is a known safety hazard as the engine can fail while under normal operation on a highway or city street with potential catastrophic results. Even with the mechanic oe bulletin referenced above, GM refuses to cover expenses for permanent repairs for the 2011 Buick Regal. Instead dealership customer service representatives are instructing vehicle owners to just add oil frequently. (note: The low oil indicator is also defective.) please also reference the class action law suit below: Https://www.classaction.org/media/berman-et-al-V-general-motors-llc-joint-notice-of-settlement.pdf GM corporation customer service, professional mechanics, and GM's dealership network (Buick and Cadillac) all are fully aware of the catastrophic safety consequences that this engine poses to the general public; yet, a comprehensive recall and appropriate extended warranty coverage is being denied.

- Charter Township Of Clinton, MI, USA

Whenever I am driving my vehicle for an hour it starts to stall or sputter in traffic and the engine dies completely. It will restart but still continues to hesitate when accelerating. I've taken it to a mechanic and no error codes pop up when this happens so they do not know the cause or how to fix the issue.

- Richmond, IN, USA

2011 Buick Regal purchased from show room floor in 2011. Presentative maintenance up to date. No warning lights. Something terribly wrong with transmission, engine. While driving on city street approaching interstate at 25 mph, car starting stalling, puttering, losing power. Pulled over, put in park. Then car would not go into gear. Would accelerate but would not go into gear or move. Had to be towed. First thing dealer service center suggest is $3000 transmission. Car only has 60,000 miles, one owner. No way! no prior symptoms or warning lights, in fact onstar diagnostics currently showing no issues found with engine/transmission system. This car is unsafe and should be recalled!!! 2011 Buick Regal diagnostics report from your 2011 Buick Regal as of 07/08/2019 no issues found

- Portsmouth, VA, USA

Our cur completely shut off all power lights engine everything doing 80 mph on interstate 84 in Idaho. A semi seen it happen jumped in the middle of both lanes to block traffic so we could get to the shoulder. In a no cell phone area 13 we disconnected the battery and had to shift srive it in limp mode. No alert lights came on we took it yo a certified dealer to find the pistons, timing chain and other things are ntoken GM/ Buick was notified they decided to decline assistance because we are out of warranty 93K miles on the car and over 5,000$ in repair and possibly another 2100$ to repair the cadilitic converter. We were in a no cell service area and had to drive in the shoulder now the headlights won't turn on at all either. The car never alert us it just shut off the dealer says the oil was very low again no oil light came on with that yhe dealer says therecould be a BCM/ECM communication issue costing $1200 to $2500 to fix. They can't assess completely until the piston/ timing belt issue is fixed but the car is not communicating the steering is now super tight and the only yhing it says now is service stibilatrac and the mechanic didn't even bring that

- Boise, ID, USA

Icar only has approx 86,000 miles. Was riding down street car shut off. It turned right back on but it was making a very loud noise. Parked it. Next morning went to start it and it wouldn't. had timing silenoids and starter changed. Car is read no codes and it still went start. Had taken to another shop for second opinion. They said I needed a motor. Where am I to get $2800

- Harrisburg, PA, USA

The contact owns a 2011 Buick Regal. While driving at an undisclosed speed, the check engine warning indicator illuminated and an abnormal noise was heard coming from the front of the vehicle. The vehicle was taken to Liberty Buick GMC (9028 E independence blvd, matthews, nc 28105, (704) 708-8000) where it was diagnosed that the transmission needed to be replaced. The vehicle was repaired; however, the failure recurred. On another occasion, while driving, there was an abnormal noise coming from the engine. It was discovered that the engine oil was below the low marker on the dipstick. The contact was informed that there was no oil leak evident; however, there was an excessive amount of oil consumption. The vehicle was not repaired a second time. The manufacturer was notified of the failures and provided case number: [xxx]. the approximate failure mileage was 64,000. Consumer stated transmission and engine failed. Parts of this document have been redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Charlotte, NC, USA

I was sitting in my brothers yard with my car crunk up and when I began to put it in reverse it started making a strange noise. So when I put it back in park the noise stopped. So I put the car back in reverse so I could back out his driveway, but this time the car wound not move. So I put it in drive to see would it go forward and it did for maybe a hundred feet but it would not switch out of second gear.

- Myrtle Beach, SC, USA

Vehicle had 45000 mile's when I bought it in Oct 2017 and now has 47500 miles. Car had no problems and drove and looks like new. Last week (09/07/18) it started bucking going down road at @30mph, then would jump into gears at stop. Then did not want to go into reverse. Would not shift out in forward gears. Manual would not work either. We were stuck in traffic at busy intersection...all in about 10 minutes time. Limped to aamco transmissions and left it...diagnosis was needed to rebuild transmission..cost;3400.00 have read this has happened on other 2011 models. Should have been a recall..45000 miles is still like new and this should have and could have been avoided..I was lucky to have not been in an accident. Was just driving normal in city when happened.

- Port Charlotte, FL, USA

Bought my car from a reputable dealer. The car was a fun toy for me to drive. My 2011 Regal apparently had has a transmission problem. The shop says needs a new transmission because everything is sealed and can't be serviced. Anyway multiple times I'm on the road and in town and the car drives okay, but as soon as merge onto the high way the car stalls. Heres what happens as soon as I merge onto the high way the RPM's go way up. The trassmission is stalled.the car won't accelerate. Multiple times I've almost had an accident. The instrument cluster has "D" flashing and engine light is off. I pull over the side of the road turn the car off, and then restart the car and then it works again. This sucks. It honestly a 50 50 chance the car transmission will stall when I merge onto the highway. I feel this is a recall issue. Manny people have complained about this recently around the same millage of mine. Around 100,000 miles. Only problem is Buick takes blame on the same problem with the enclave, but not the Regal. What a shame.

- De Pere, WI, USA

I'm writing about a concern I have regarding the transmission design for the 2011 Buick Regal. I purchased my car from a reputable dealer with a clean car fax in 2014. The car had roughly 45,000 miles on it, and every bit of maintenance has been performed at the appropriate intervals since I purchased it 3.5 years ago. During the time that I've owned my car, I have put an additional 30,000 miles on it total. I haven't driven it on the highway since July of 2015, and my trips are shorter than 4 miles one way. On my way to work a couple of weeks ago, my transmission completely failed without warning. I was almost broadsided twice, turning left around a roundabout. I was driving roughly 30mph, and without warning it lost power. The "check engine" light flashed, and the car stalled trying to switch gears as I accelerated. When I went to put it in park, it will slide into reverse but doesn't move in any direction. I was forced to push it uphill in a parking garage, so my tow truck driver could come and tow it to my mechanic. I had it towed to my mechanic, who informed me that this design has a fatal design flaw causing the transmission to fail. The enclave has been recalled as well for exact same failure. I then got a second opinion from his transmission expert, who was dumbfounded I was needing to replace a transmission in a car that has accumulated 30,000 miles total in 4 years time. Both my mechanic and my transmission expert informed me that the enclave had been recalled for the exact same failure, and they personally knew of Buick Regal owners who had their transmissions fail without warning. If I had been going faster than 30mph, or been on the highway, it could have been fatal! I spoke with my attorney, who advised me to file complaints with Buick, the ftc, and the NHTSA.

- Fishers, IN, USA

The contact owns a 2011 Buick Regal. The contact stated that the vehicle's shifter was not functional. The failure occurred without warning. The vehicle's was towed to a local Buick dealer where the failure was not diagnosed or repaired. The manufacturer was notified of failure and opened a case. The failure mileage was approximately 48,000.

- Long Beach, CA, USA