I had 3 out of 4 motor mounts crack and fail. My mechanic said that he has run into this problem many many times. I have to wait 3-4 weeks for the parts to come in, because GM is trying to get them made and there are a lot of dealer waiting for them.

- Painesville , OH, USA

Bought car 6/2/08 with 6000 miles on odometer. Immediately noticed extreme vibration throughout vehicle while driving also in park at 1500 rpms. Dealer in consort with GM attempted to fix; could not do it. Dealer alleges "vehicle working as designed". apparently designed to vibrate. My concern is that the problem is in the engine - not in suspension or tires, etc. With vibration comes inordinate wear and possible failure while driving possibly causing an accident with injuries. Additionally, the front safety belts are defective in that they do not lock up and restrain the upper torso as designed. Dealer has replaced both belts; however, they still do not work as designed and required posing a clear and present danger to the driver and passenger in the front seats. There has not been an incident as yet; however, the possibility of one is rather obvious and GM thus far has been unable to resolve the issue safely and satisfactorily.

- Langhorne, PA, USA

2007 Buick Lucerne engine will shut down without any notice. Consumer states that the engine problems have been on-going for some time now and would like to have the vehicle replaced by the dealership. The consumer stated the engine cranked, but would not start. The dealership claimed the problem was a defective ignition control module and various electrical connections were loose and corroded. The vehicle shut down on 7 different occasions. The left rear window would not close. The problem was diagnosed as a twisted regulator cable.

- Staunton, VA, USA