The contact owns a 2006 Buick Lucerne. The contact stated that the rear driver and passenger side doors failed to unlock or open. The contact stated that this was a recurring failure. The vehicle was taken to a dealer for diagnostic testing. The technician stated that the locks needed to be oiled. The vehicle was not repaired. The manufacturer was notified. The approximate failure mileage was 60,000. The VIN was not available.

- Paetoskey, MI, USA

The contact owns a 2006 Buick Lucerne. The contact stated that the theft locks activated on the vehicle, which prevented the rear doors from unlocking while the vehicle was in park. The failure recurred twice. The vehicle was taken to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 61,000.....updated 04/23/15 the vehicle was repaired at a cost of $900 both rear locks were replaced. Updated 04/24/15....updated 06/09/15 updated 06/16/16

- Hamburg, NY, USA

Latches locks linkages -- starting at 52000 miles, my Buick Lucerne 2006's rear passenger door would not open under any circumstances. The door will not open from the inside, from the outside, and although the key fob visibly actuates the latch, it does not assist in opening the door. Now at 53000, the driver's side rear door will not open. I now have no access to half of the inside of the automobile. After investigating numerous complaints on the internet, I discovered that apparently this is due to a latch assembly failure in each door. The buickforums.com provided advice: Chisel open the back doors, then pull the door panel off. At that point, apparently the visible linkages are not the issue. Instead, it is the internal mechanism of the lock housing. Problem not resolved.

- Ann Arbor , MI, USA

The contact owns a 2006 Buick Lucerne. The contact stated that the front driver side actuator lock fractured and prevented her from entering or exiting the vehicle. The vehicle was not diagnosed or repaired. The failure mileage was 45,000.

- Willoughby, OH, USA

Door locks jam and can't open door. Locks can not be manually opened. Locked in vehicle. Reported 8/21/08 and fixed. 2/16/10 broke and I had to pay $400. 6/25/13 broke 3rd time and GM refused to refund me $400 and said vehicle had too much mileage. I was told to buy a new car. Numerous reports of faulty locks on internet.

- Avon, OH, USA

Reported this to dealer on 7/2/13 and was diagnosed as inside door lock assy at 58.97$, and 410$ plus tax to repair. Went home banged on in side of door and was able to open until this week when problem recurred and no amount of banging would open door. Went on google and noted this to be prevalent with many owners. This can be fatal in an accident where the passenger cannot exit the vehicle. Do we have to wait for a fatality before the GM acknowledges either a faulty design or faulty part, and repair without customer cost. Please advise.

- Galloway , NJ, USA

The contact owns a 2006 Buick Lucerne. The contact stated that while entering the vehicle, the rear driver's side door locked independently and could not be unlocked. The vehicle was taken to the dealer for diagnosis where it was stated that the latching mechanism needed to be replaced. The vehicle was not repaired and the manufacturer was not notified. The approximate failure mileage was 119,000. Updated 12/23/13 the consumer stated the doors could not be opened from the inside or outside.

- Allegan, MI, USA

The contact owns a 2006 Buick Lucerne. The contact stated that the rear driver and passenger's side door locks would not unlock electronically or manually. The vehicle was taken to the dealer for diagnosis. The technician stated the door locks would have to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 73,000.

- Glen Ellyn, IL, USA

I closed the rear driver's side door. I then locked the car. Later after unlocking the vehicle the door would not open; from the outside or inside. It appears to be locking and unlocking. After checking forums I see that there are many Buick Lucerne owners that have also experienced this issue. This is a major safety issue! I can't believe there isn't a recall on this car. I'm scared to put my children in the back seat by chance we are in a accident and they are injured.

- Fort Wayne, IN, USA

The rear door locks on the 2006 Buick Lucerne have a fundamental design flaw. If the rear seat passenger pulls the door handle to open the door while the door is locked, and holds it in place when the power lock mechanism attempts to unlock the door, the mechanism binds internally making the door impossible to open. This has occurred 5 times on our Lucerne over the past 4 years. The only way to open the door is remove the inner door panel. Reach into the lock through the access holes and free up the mechanism. Until the door is repaired the backseat passenger sitting next to the frozen door cannot get out. I can't believe that the engineering team at GM has not discovered a fix for this condition. This is very disappointing and dangerous.

- South Windsor, CT, USA

The back doors on my Buick Lucerne 2006 have not unlocked for over a month. Strangely, one day I leaned on one door from the inside and it unlocked for a few hours and then relocked. I see many other complaints for the same issue online. The dealers were not helpful or sympathetic and charged me one hundred dollars to diagnose this in five minutes, with a two grand estimate. It is unsafe for back seaters who cannot get in or out safely. This should be on a recall from GM right away.

- Monroe, CT, USA

The contact owns a 2006 Buick Lucerne. The contact stated that both rear doors had become inoperable. The dealer was contacted who advised the contact to bring the vehicle in for inspection. The vehicle was not repaired. The contact attempted to reach the manufacturer. The vehicle was taken to a mechanic who stated that the locking mechanism failed and needed to be replaced. The failure mileage was 120,000.

- Monroe, CT, USA

Unable to open rear passenger door. Tried from both inside and outside, tried manually unlocking and using remote to unlock. Door will not open. Afraid to use back seat now in case of emergency.

- Derry, PA, USA

I have experienced an issue that seems to be of concern ( reviewed complaints filed for the same issue) for safety. My passenger side back door failed to unlock both from the inside and outside. If I were in an accident and had passengers in the back seat, this could be life threatening. I cannot image that there has not been a recall for such a serious issue. After talking to GM, they will not take any action until notified by NHTSA-odl. What does it take for this issue to be addressed?

- Loganville, GA, USA

2006 Buick Lucerne - vehicle rear doors will not open from inside or out. Doors are unlocked but passengers in the back seat can not exit the car without climbing over the front seat to exit the front doors. Car doors will not open with inside door handle or outside door handle. Requires replacement of the rear door lock assembly.

- Cortland, NY, USA

The contact owns a 2006 Buick Lucerne. The contact stated that the rear passenger door would not open. The contact stated that when attempting to open or lock the door with the key or key fob, the actuator would move up and down as if the vehicle was locking but the door would not unlock. The failure and current mileage was 76,000. Updated 05/26/11

- Dountifuf, UT, USA

The rear passenger door of my 2006 Buick Lucerne intermittently not unlock (open) from the inside or outside of the vehicle, creating a safety concern if the vehicle is to be exited quickly.

- Chesterland, OH, USA

The rear passenger and/or driver side door(s) will not open from the inside or the outside. It is as though the locking mechanisms are not engaging either door.

- Kaukauna, WI, USA

The contact owns a 2006 Buick Lucerne. The contact stated that the rear passenger door could not be unlocked from the inside or outside. The vehicle was taken to an authorized dealer who replaced the door lock. The failure continued. The vehicle was taken back to the dealer who replaced the door lock assembly. The failure mileage was 79,825 and the current mileage was 80,082.

- Indianapolis, IN, USA

: the contact stated while the vehicle was placed in drive, the doors locked automatically. It was driven to the dealer who determined the door locks performed as designed. The consumer stated if he is involved in an accident, he or the passengers may not be able to exit. The passengers will not be able to exit until the switch is operated or pulls up the manual lock post, then they can unlock the door by pulling the door handle. The consumer believes that takes too much time and effort if in an emergency situation. Updated 12/05/06.

- Metairie, LA, USA