general problems of the 2011 Buick Regal - part 1

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.

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.

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.

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.

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.

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.

The engine shuts off when I slow down to make a left turn,this has happened twice. It does start again. I am afraid to drive it know.

The car doesn’t stay on park still will move forward or backwards the gear shift locks and does not move when I turn it makes a huge clack sound.

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.

Engines started to putter. Then engine power reduced came on. Car died then the service stabilitrak came on.

Timing chain damaged engine.

Vehicle dies in the middle of driving at all speeds and can't steer or brake only pray. Also, I turned vehicle off and won't restart tower to service center they said I need new engine!!!! I was just driving it no smoke no smell just won't start he said no oil in engine even though not scheduled for a oil change yet. Radio won't keep date or time or radio stations!.

My 2011 Buick Regal with the 2. 4l 4cyl has been excessively consuming oil. The timing chain was replaced around 60k miles, and shortly after the complete engine was replaced (see carfax image attached, confirmed with dealer). Those repairs have happened before I owned this vehicle. My concern is that there is going to be a failure within my engine and the repairs would be costly to me. I believe this issue needs to be looked into as it's been a common issue with these engines. The vehicle is now at 159k miles and I've been adding a quart or more of oil between changes.

The contact owns a 2011 Buick Regal. The contact stated that while driving on several occasions the headlights became inoperable. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic who informed the contact that the wiring in the bumper was hot at the base. The vehicle was taken to the local dealer where the engine was diagnosed. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was unknown.

113,000 miles, the car said reduced engine power, service stabillitrack and then died. Wouldn't start. Took to repair shop and they pulled the solenoid from the engine and said it was covered with metal shavings. Car was within oil change range but no oil present. Now have to replace the engine and this is an issue with all these 2. 4 engines.

Engine of my car acts weird and I took it to the mechanic shop and they say theres nothing wrong.

Tl the contact owns a 2011 Buick Regal. While driving approximately 25 mph, the check engine warning indicator illuminated intermittently, which caused the vehicle to go into limp mode. The contact mentioned that the vehicle failed to accelerate more than 1 mph. In addition, the vehicle needed to be restarted in order to operate. The contact called vision Buick GMC (800 panorama trail s, rochester, NY 14625, (585) 200-3905) and informed them of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 83,000.

Had to replace engine because of detergent in recommended engine oil. With the yearly oil change and high detergent levels it eats away at seals and gasket.

While driving on the highway at 70 miles per hour, car completely shut off. Loss of engine power and car would not restart. Prior to that, entine car shook violently right before the shut down. I was driving on an interstate with light traffic. Car is extremely unsafe.

Tamara recall; my Buick regeal is 2011 with 84000 mileage. A frustrating rotting/granding noise comes out from the engine from the car ignition turn on to accelerating fr0-25mph, before the annoying noise stop. Engine also misfire and car dies when it likes; stability control indicate on the screen. When check online, lots of people have complained about the same problem and how difficult for it to be resolve as many things brocken can cause the problems.

The throttle body has a defect which shuts off all power to vehicle with no notice. The engine and transmission lock up you lose all steering control and no brakes. Also no lights so when it happens at night it is pitch black. Gm does know about the problem and when I questioned them about the loss of life like what happend with the chevy cruze all members of gm are told to hang up the phone. It has happend on several occasions and the dealership sent me back on the road knowing the problem. Dealer rep said if I was a better customer thay may have done more for me.

The contact owns a 2011 Buick Regal. While driving approximately 25 mph, the vehicle seized at a red light and never restarted. The contact stated that the timing chain failed and disrupted the engine, leaving the vehicle inoperable. There were no warning indicators illuminated before or after the failure. The vehicle was towed to an independent mechanic and was visually diagnosed. The visual diagnosis determined that the failure part was the timing chain. The vehicle was not repaired. The dealer was not notified. The manufacturer was not notified. The VIN was unknown. The approximate failure mileage was 42,000.

The vehicle seems to want to cut off while at a traffic light! I simply do not understand why the engine seems to be so loud. I had both shocks and struts replaced after purchasing this vehicle. The entire frame seems to nose dive or "wander" while I am driving on the highway, totally uncomfortable feeling. Tires are basically new I just don't know what seems to be going on with this car!.

Only 64,000 miles on the car and the engine light came on and the timing chain was bad. I believe it is a defective timing chain.

Replaced engine a 2. 4l laf and transmission a 6t-50 with bad trans @ 149k miles on 2011 Buick Regal. Replacement is 2011 2. 4l laf engine and 6t-50 trans w/ 17k miles. Car now has p0089 and p228d codes and whine from high pressure fuel pump as described in #pip5203a. Turns out original engine is a 2010 engine with all the cam chain issues seen in other NHTSA complaints. To add insult to injury my dealer tells me ecm can not be reprogrammed to 2011 because programming is driven by the VIN# only. My only choice is to buy the parts from gm (about $1000) to turn my engine back into a 2010 engine or pay a dealer several thousand dollars to do the work. I`m in a position of paying several thousand dollars more for the car then it is worth. This was to be my retirement gift to myself, guess I will be driving my 1997 pontiac grand am until I drop dead. Thanks gm, my brand loyalty sure pays off. My advice to future car buyers, buy another brand!! p. S. I hope this constitutes some emission violation and the epa hits gm with a multi million dollar fine. P. S. S. It dies on the road to. Where is marry b. When you her?.

When at a stop sign my vehicle died. I was able to restart it but at slow speeds it continued to die. On the way home, at highway speeds the car performed fine. At slow speeds the rest of the day and during a test drive the next day, after about 10 minutes, the vehicle died almost continuously, losing power steering etc. To get home I had to keep a foot on the gas while braking/turning and stopped to keep the idle speed up. I was able to get it to the dealer the next day. The diagnostic check revealed a p0010 failure code from which they found the intake camshaft actuator solenoid was shorted. They replaced it and currently it is operating fine. They indicated it was not covered under warranty and not subject to the specific vehicle recall that I received.

When driving or coming to a stop or even making a turning the vehicles shakes and then shuts off, this first happen when I was driving the car on a very busy street, the first time this occurred it happened with no warning just a shake and then the car shut off, reducing speed rapidly , causing the traffic behind me to do the same, thank god that there wasn't an accident, but it sure could have been. And now I see on the forum that I am not the only one with this problem, Buick isn't doing anything about it, does this fall under the lemon law, help.

Vehicle cut off while I was driving. Loss all control while turning a corner in town.

There have been issues with the engine starting which is apart of a class suit but has not been solidified. I am angered as to why my car keeps not starting when in position. I have to try to start my vehicle several times before actually starting. Now I take it in and its still an engine issue which they said it was the camshaft. My local dealership has no loaner vehicle and im now without a vehicle. So upsetting.

While driving down the road yesterday, at around 50 miles per hour, our 2011 Buick Regal, with only 56,000 miles on it, lost power out of the blue and would not drive over 30 miles per hour. It apparently was in reduced power mode due to a faulty throttle body. Thankfully we were not on the expressway, as this would have been a very dangerous situation given the roads were very icy yesterday. Apparently, many 2010 - 2012 Buick Regals are covered for this with a special coverage adjustment so it is a known problem. We believe our vehicle should be included in this adjustment as well. As I mentioned earlier, this could be a very dangerous situation and we believe it needs to be addressed.

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.

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 vechile 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.

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.

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.

Broken purge valve.