While driving the car, it stalled and cut off while in the midst of making a right hand turn. All power was on temporarily but the engine was unable to turn over after cutting out. The dealership is unable to diagnose the issue, and apparently the issue has occurred before to the previous owner. The car is still under a 5 year 100,000 powertrain warranty. It appears no proper diagnosis has occurred and this issue has been occurring on the car since approx. 52,000 miles current millage is 75,900. I have referenced previous tsb NHTSA id 10037218 to the dealership and have received no response as of yet as to the underlying issue. I have discovered other owners having similar issues on websites such as carcomplaints.com and various Buick Regal forums. This appears to me as a major safety issue as when the car shuts off it does not power back on, and it cuts seemingly randomly.

- Murrietta, CA, USA

53000 miles. When car is in motion. Car goes to low power more and check stabili-track message comes on. Car shakes bad at idle, idles too high, (almost to a point where brakes won't hold at a stop). Shut down and restart car goes back to normal conditions for short puerile of time. Check engine light comes on and code for throttle body malfunction is detected. Called Buick service number and was told it would be under warranty. Made appointment with dealership checked code and determined same code issue and it was not covered under warranty. Did. Not have them fix it yet. Cost is excessive and was told under warranty by manufacturer. Waiting on customer service call back. Car is unsafe to drive. Have seen many similar complaints but have seen nothing done by Buick or ntsb.

- Rockford, IL, USA

The check/service engine light comes on. After a few days it goes away. I have had the codes read and the issue cannot be determined. Sometimes the acceleration from stop does not respond timely. It makes it difficult when merging on freeways. I was almost involved in a car accident when the first incident occurred due to slow response of acceleration. Maf has been clean. The a new maf was installed. Nothing has changed. Also I am not sure if this is related but I cannot run my air conditioner until the car has been running for a few miles. If I do the compressor will make an awful noise. An odor has started to come from the vents when the air is not running.

- Arlington, TX, USA

The car stalled today after reversing out of my parking spot and shifting into drive. This is the 3rd time in my 14 months of owning the car that this has happened. It only happens right after turning the car on. The steering goes out and the engine stalls, but the electronics remain on, it's a lot like what happens when you run out of fuel but my tank is full. The dealer cannot replicate the issue and will not do anything. They claim they've never heard of this issue before.

- Mesa, AZ, USA

The contact owns a 2011 Buick Regal.while driving approximately 45 mph, the check engine warning light illuminated and the vehicle suddenly stalled. The vehicle was towed to the dealer where it was diagnosed that the timing change failed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 107,000.

- Wixom, MI, USA

The contact owns a 2011 Buick Regal. While the vehicle was being inspected by an independent mechanic, it was discovered that the cam shaft position actuator solenoid valve needed to be replaced. The vehicle was not repaired. The vehicle was not included in a manufacturer's recall related to the failure. The manufacturer was notified of the failure. The failure mileage was approximately 22,775.

- Milford, CT, USA

I was driving down the highway, 78 mph in rush hour and my engine died/no power, no brakes, no steering. Heavy traffic, no control. I made it to shoulder, very difficult to ease the vehicle over. No warning lights. Engine just died. No control. Once the car stopped after rolling at a high speed, I tried to start my engine. Engine started, and able to proceed. Next day, similar incident happened I was turning a corner. The same thing happened, I was going a lower speed. I had less control after the engine died, no warning lights etc.very difficult to maneuver. I turned the key and it started. I took it to the dealer. They said needed oil change, and 3 quarts low on oil. And I was 1000 miles over. They were sending me home with oil change, I pleaded to look into further as I was in fear of my life driving. The service sheet indicated the car had multiple cam actuator system failure codes. The service manager said low on oil, and was safe, he went to get the car. The car stalled on him...no power, no alarms, no service engine soon lights, etc. Eventually, I convinced them to give me a vehicle to drive after initial denial. 1 week later, they have found nothing wrong. Said exhaust cam shaft actuator was broken. They replaced the timing chains, the actuators, and selenoids. Still no explanation why my car died driving down the road at 78mph they said sometimes it takes 3 failures or key cycles before an alarm will be set. Not sure if they truly found the problem so they have asked to drive my car for several days to see if the default continues to show up. I am very concerned that an engine should stop while traveling at high speeds 3 times before an alarm system or warning would ever be given to the driver that there may be a problem. I am still very concerned and am not sure if I should be driving this vehicle or not for fear of my life.

- St. Johns, MI, USA

Engine keeps stalling., it happens at intersections and randomlly after accelerating. The car dies. I have had this checked by dealers and several mechanics. Very loud noise when vehicle starts up. Runs rough and does not accelerate correctly. Shakes whenever idle and turns off randomlly. Possible ECM software update needed based on internet search for the similiar issue with this model and year. Dealer was unable to assist or even comment on any updates to software without going in and paying for inspection again. Fuses, air intake, O2 sensors filers, everything has been checked.

- Belleville , MI, USA

Engine stalling in intersection, and in a parking lot. Was attempting to cross an intersection and car just died, started it again it moved very roughly and died again. It was hot outside and I had the air running. No dtc codes present. It has now happened several more times while just letting off the gas and pulling into a parking spot. It's very random and I am afraid to have my wife or daughter drive the vehicle and have it die in a cross road or intersection. Lots of posts on similar issues, but no recalls from Buick.....will someone have to die first?

- Williamsport, OH, USA

On Saturday, 4/18/15, I was in the intersection waiting to make a left hand turn; the vehicle was not moving. When it was clear to complete the left hand turn, I placed my foot on the accelerator and the vehicle would not move forward. By this time, the light changed to red, permitting traffic in the opposite direction to move forward. However, I am in the middle of the intersection unable to move. I shut the vehicle off and restarted the vehicle at which time, I was able to maneuver my vehicle out the away and complete my left hand turn. I took it to the Buick dealership located at 7400 w cermak road in North riverside, il on 4/20/15 and they found nothing wrong with it. So I picked up my vehicle home 4/20/15 and drove it home. On the ride home, it performed with no issues. Then on Tuesday, 4/21/15, I was sitting at a red light. Once the light turned green which permitted me to move forward, I placed my foot on the acceleration. The vehicle jolted forward an inch or so and would not move forward any longer. The van behind me had to swing to the right of my vehicle to avoid rear ending me. This is a very dangerous situation. This could cause accidents and/or injury and fatalities. I also had my 13 yr old daughter in the vehicle with me during both incidents. I've seen numerous complaints about this same problem. This needs to be addressed as the could end someone's life or seriously injure someone.

- Hillside, IL, USA

I was driving about 35 mph and was coming into an intersection in which I needed to turn. Stoplight turned red, so I stopped. As soon as I stopped, the car just died. Would not restart. Had to call a tow truck. My daughter was in the car! we could have seriously been hurt. Someone please figure out what is going on. Have had my car at dealer before and mentioned stalling, but nothing has been done. Will be having it towed back in Monday.

- Ossian, IN, USA

I bought this 2011 Buick Regal with about 53000 miles on it from a private seller. From the day I got it the stereo, clock, navigation have been a problem. The clock doesn't hold the time, stereo turns off my itself or sometimes makes a loud pop noise and doesn't work. The navigation is in the state of Washington, I live in N.Y. the drivers heated seat doesn't work. The bumper to bumper warranty was up 3000 mile ago, at this point. Later, the timing chain needed to be replaced. The motor made a loud knock and would surge, hesitate and stall. With the timing being off, the transmission wouldn't downshift and was hard to stop the car. Two months later the same symptoms re-occurred. The dealer charged me to diagnose and told me it was down 2 quarts of oil. They changed the oil 2 months prior. Now, I noticed the rear brakes are dragging and don't release sometimes. GM, Buick and two dealer won't do anything about any of this. An expensive car that is barely years old with all these problems. I've seen the service bulletins on all off these problems. No help from GM, just index card readers from the philippines who apologize every thirty seconds and make excuses!

- Amherst, NY, USA

The contact owns a 2011 Buick Regal. The contact stated that the vehicle started to shake and stalled intermittently. The contact stated that the failure occurred during cold weather conditions. In addition, the contact stated that the vehicle failed to accelerate over 36 mph. The contact also stated that the vehicle would accelerate independently intermittently. The contact mentioned that the electronic stability control, the engine and the oil warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 44,000.

- Elizabeth, NJ, USA

Purchased car in summer of 2011. During the first cold weather car would give a warning to service stabiliti trac and that the engine power had been reduced. I decided to pull over and restart the vehicle and it would reset the computer and the warning lights would turn off. I took this to the dealer and they could not replicate the issue. I started to let the car warm up in the winter and this seemed to help until recently. Within the last few weeks I have been having similar problems even after letting the car warm up. The car will automatically reduce engine power even while on the highway making it difficult to get out of the way of traffic. After these incidents the check engine light will come on but will go off after turning the car off and restarting. I have contacted onstar and they tell me the same thing that the warning lights do. I have also had issues with the car trying to accelerate on its own while at a stoplight. After going to the dealer and having them not able to diagnose the problem or try to repair it and not fix the issues, I feel at a loss of what to do at this point. I do not have the time or money to keep going to the dealer only to leave with the same problems. I would think that the manufacturer would be more inclined to fix these issue before people are injured or any fatalities occur due to their negligence. I feel that after reading about other people's similar issues that this is something that should call for a recall.

- Grand Ledge, MI, USA

The vehicle lost most of its power, the engine light came on and it would not even accelerate to 40 mph. This is a very dangerous situation on the highway where the minimum speed is 45 mph. Apparently, this is not uncommon with that engine. I am now paying $611 to replace the throttle body that apparently is the source of the problem on this essentially new car.

- West Bloomfield, MI, USA

Well first there are a few complaints, first few months, car alarm going off at random, then trunk popped at random, brought in two separate occasions to dealer for service was said to be fixed. Then left signal outage few occasions brought in with the other work, had no idea about the bulbs till this site, then radio on and off intermittent, battery or other car dies charges will drive all day end of day after a battery jump stutters as driving or feels like going to just die. Got home on 7/21/2014 and noticed all the recalls on news had no clue it was this make, model, year, etc., my 18 has driven on numerous occasions (god forbid) ! also I'm reading where this make takes off at random has happened numerous times in drive thru assumed I hadn't applied enough pressure to brake. I'm furious and honestly with young adult drivers scared to death now! ohhh and never received any recall info on this vehicle ever! oh and my key broke to only thing is it bent and had replaced ! and seat was loose also.

- East Haven , CT, USA

When starting the car in the morning, it acts dead, but the battery is okay. After a few tries it does start but then I have the dash light behaving crazy - emergency flashers on and various messages in my center dash. I reset everything to normal and am okay. Upon a restart later in the day, things are usually okay. Being a senior citizen I don't go very far but yesterday, as I was entering a traffic circle, the engine suddenly quit, a huge trailer truck was bearing down on me and luckily the car started back up just in time. The Buick dealer (darby) treated me rudely over a minor problem so now I don't know where to go or what to do for help on this issue.

- North Port, FL, USA

I have had to turn my vehicle into the shop on multiple occasions regarding my vehicle breaking down in the middle of traffic, the card basically runs like a toy! within months of purchasing this precertified one owner vehicle, the oil light supposedly was recalled and did not function-car had absolutely no oil. I continued to received Buick handled maintenance and still experiencing issues. The vehicle still looses oil within range of not needing a change. The card jerks and when approaching stops and will completely cut off. I recently got my car back after two weeks of repairs replacing of engine pistons, belts so on and so forth however today after coming to a stop at a stop light, the car began to jerk and shake and the died. The light turn green and I was in front of a school bus! I cannot be on the road and my car cutting off in traffic after multiple repairs! this was my first car purchase and I am more than disappointed. Once again I have to take my car in to see why the issue continues.

- Memphis, TN, USA

The contact owns a 2011 Buick Regal. The contact stated while traveling at any speed the service engine light illuminated intermittently on more than one occasion. The vehicle was taken to an authorized dealer who did not diagnose the failure nor did they repair the vehicle. The code was cleared on the instrument panel by an authorized dealer and the failure recurred. The contact continued to see the service engine light illuminate and the vehicle was taken to an authorized dealer who diagnosed that the crank shaft sensor needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 40,000.

- Lincoln, IL, USA

I received a letter from Buick which said my balancing belt (timing chain) could break causing engine damage. They would not do anything about it until it broke. They extended the warranty in case that happened. If the timing chain breaks and the engine stops, I will lose steering control which is a comforting thought. If I am on interstate doing 70 mph and lose steering, good bye!

- Dillon, SC, USA