The doors, specifically rear doors, in this vehicle get stuck in an open or closed position. It appears to be a defect that causes the door latch to stay in the closed position, trapping children or other passengers in the back seat, or preventing the door from closing. From internet research, this is a common issue with the Lucerne (not just 2006) and the lacrosse. First we had the passenger rear door get stuck closed. After a month or so of unlocking and locking the doors, it started working again randomly, but a few months later, became stuck closed again with no trigger. We continued to use the driver's side rear door, but about a year later, it got stuck open. At first the door wouldn't open for my son, but I pulled on the handle from the outside while he pushed from the inside, and we got it open. When I tried to close the door, it bounced back. The latch is stuck in the closed position. The child safety lock is not engaged. The doors will not open from inside or outside the vehicle. The locks function normally manually, with the key fob, and by pressing the driver's button. The vehicle was parked and off during all incidences.

- Woodbury, MN, USA

Electronics shut down while driving. NHTSA# 10972355 NHTSA id# 10908198

- Nashville, TN, USA

While passing a vehicle, accelerator immediately accelerated the vehicle to over 115 mph quickly, and the speed continued to climb. Could not deaccelerate. Both feet on the brake, no luck, shifted to 1st gear, no luck, pushed many buttons on steering wheel, no luck, accepted the fact that this was going to be a high speed deliberate rollover. Finally at the last possible moment, throttle disengaged.

- Texarkana, TX, USA

Back doors are stuck locked. Neither door will open. Have two kids that have to ride back there and if we get in an accident it could be fatal if they are back there and can't get out!!

- Dayton, OH, USA

I am writing a complaint to inform you about my 2006 Buick Lucerne, VIN number [xxx]. it has a defect. The car has been accelerating at various times. Also, the car has turned off twice while I was driving. The first time was while I was driving in the parking lot at my job and the second time was on May 24, 2017 as I was just starting to pass the blinking lights. I really feel that the car is no longer safe to be driven after the recall in 2015. I honestly would like the problem fixed as soon as possible for my safety and the safety of others. This car is unsafe and I would prefer to have the value of the car instead of the car being repaired. The car was supposedly fixed after the recall and the same problem is still happening. It is my opinion that this car cannot be repaired. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Holyoke, MA, USA

Vehicle has numerous issues over the years. 80K miles currently, tires leak air because of corrosion on the rims, this is my 2nd set of tires not counting the set the vehicle came with, breaks have been done twice, rotors have been replaced, both front door handles have come off, problems with the leveler, now door locks lock/unlock while driving but not just once (might happen 6-8 times). Local dealer & service station have performed repairs/replacements. Already been under 2 recalls.

- Lansing, MI, USA

Suddenly the drivers side front door stopped unlocking. The door will not open because the locking mechanism continues to lock and unlocking quickly preventing you from opening the door. The door will not unlock manually, using inside lock button or by remote. This happens at anytime so you never know if you will be able to get out of the car. This is causing drivers to climb to the passenger side for exit preventing a quick exit in an emergency. Many many complaints have been filed for this safety issue and no recall on the mechanism that operates the doors leaving owners with a huge expense.

- Hyattsville, MD, USA

The passenger side rear door does not unlock from the inside or the outside. My daughter was in the back seat and told me she could not get out. I got out of the car and attempted to open the door from the outside with no success. I tried the electric lock button on the driver side and passenger side without success. This is a very dangerous situation and have read numerous complaints from many individuals. It appears GM has a faulty locking mechanism.

- Sylvania, OH, USA

Rear passenger side door was opened and closed after entering, once we tried to open that door it no longer opened from the inside or the outside. The same thing happened to the rear driver's side door the next day, now neither of the rear doors open from the inside or the outside. The child safety locks were not on prior to this happening so it couldn't have had an effect on why this happened as we were able to exit the vehicle without having to open them from the inside and outside, now it won't open at all from either side. There are 3 children always sitting in the back and have to jump over the center console from the front and this is also a hazard in case of a fire or accident if trying to exit the car.

- Milwaukee, WI, USA