I was driving one morning and noticed that my speed registered 80miles when I had just pulled off. I cut the car off and then starting back driving and it then said I was going 120. I took my car in and they told me that my car was not under warranty for this repair, and it would cost me $575. To get it fixed. I asked for the main number to Buick and called them, they said that my car did not fall in the extended warranty category and they did not have enough complaints to have this as a recall. I also told them that this is a safety hazard and that I should not have to pay out of pocket for a manufacturer defect and that I am not the only one with this problem on this particular vehicle. I could be sitting with the car idle and the speedometer reads 120, even when I made the appt. To have it checked out the service guy said that quite a few people have been in with that problem.

- Piscataway, NJ, USA

There seems to be a known safety issue with speedometer control module. The dealers know about this issue, transmission and speedometer repair shops knpw about this issue. This is a very dangerous problem as you are driving and the speed registers different & sometimes not at all.

- West Chester, OH, USA

As I began to work on Tuesday of this week, I looked down and my speedometer was registering 120 mph. I was only just beginning so I realized something was wrong. I stopped and switched the car off and thought it would reset the gauges but it only went to 65mph. As I began driving again it started registering 120mph. Then on Wednesday, it would not leave off the 120mph when I turned the engine off. The next time it went back it beginning at 65 and as I accelerated it went to 120. I have no clue what speed I am traveling while driving. I went to my dealer and he said I would have to pay for it to be fixed. I did not have it fixed.

- Broxton, GA, USA

Intermittent speedometer readings. Speedometer stuck anywhere between 0-120mph.

- Tipton, IN, USA

My speedometer started to stick at 60 mph when driving slowly after exiting off of the freeway at night. I then proceeded on my way home in a 30mph zone and then the speedometer was pegged out at over 120mph. From then on sometimes the needle on the gauge almost goes to zero until you start to drive the vehicle, and then it peg's out again. Consequently my wife and I do not know how fast we are going which is a major safety issue especially at freeway speeds or driving through the neighborhood where children play. I have not payed to replace a 500 hundred dollar item.

- Galt, CA, USA

Faulty speedometer registers unreliable speed. 2004 Buick Rainier. Now, the oil pressure gauge is also faulty and jumps around. Notified GM, who was well aware of this problem but claimed it was not a safety issue worthy of a recall. Internet website showed hundreds of other GM SUV owners with same problem.

- Birmingham, MI, USA

I was in the midst of a 10 hour road trip over the holidays when the speedometer originally quit working. I was traveling at a rate of 70 mph. The speedometer started inching up and buried itself at 120 mph. I pulled off the road in an attempt to get the speedometer to go back down but it settled on 60 mph while in park. I continued on w/my trip and took the car to the dealership upon arrival in abilene, ks. They were not able to identify the problem in the cluster and checked bulletins for past problems w/speedometers. Over the course of 3 months the speedometer continued to repeat this action. I had it into a dealership in austin, tx on three separate occasions w/the same response from the dealership until the speedometer finally quite working altogether. The dealer told me he had seen this in a few other models by GM. I called and filed a complaint with GM and was told there was nothing they would do. I then had to pay to have the cluster replaced in February 2007. Three weeks later the car was back in B/C the entire system shut down and the speedometer quit working. The service department saw the problem upon arrival but was unable to prolong.

- Austin, TX, USA