I have had my car in numerous times to dealership and still have not been able to fix problem. When I travel down interstate the RPM locks in at around 2.6--every so often it will kick out and move past 3. this causes a jerking motion in car that is quite noticeable by everyone in car. I have assisted my dealership in finding the cause of this problem, by having a mechanic take if for test drives, applying scanning tool, and a data recorder to engine. I have put on over 600 miles trying to diagnosis problem. I have now been told that they really don't know what is causing the symptoms, but think it may a programming error. They state that the computer controlling the torque converter is not working properly. They state GMC has approx 13 other cars in us that is doing this, but they do not know what is causing the problem or how to fix it. They are currently working on a fix---but this may take years since any changes made, have to go through gov. In the mean time I am suppose to cont to drive this car and live with the sudden quick jerks that I get every 1-2 miles going down road, wait for the comp upgrade, and hope that this is the cause!! if not we start over. I am real frustrated with this whole process and the way this has been handled at my dealership. I want a resolution to this asap. The car only has 27,000 miles on, and should not be having this much problems. At this point I am very disappointed in my service I have received and in the whole GMC technician staff, and product.

- Rochester, MN, USA

While driving for a little while and when turning off the engine, vehicle would not restart. Vehicle was towed to the dealership. Dealer inspected vehicle several times, and could not duplicate or correct the problem.

- Wiggins, CO, USA

My 2002 Grand Am SE was not accelerating. Brought it to the dealer who said that the timing chain had jumped. Dealer said it was my fault due to not enough oil changes and sludge in the engine. I called Pontiac for assistance and was treated rudely! upon taking the Grand Am to another mechanic (non-dealer) it was found that the timing chain tensioner failed causing the timing chain to jump. Yet the dealer did not catch this. New mechanic could not find any trace of sludge in the engine causing the problem as the dealer said. While it was in their possession, the dealer caused more damage to the engine by starting it with a broken timing chain.

- Novi, MI, USA

Purchased the car new in 2001. Oil changed every 3,000 miles and all regular maintenance. At 40,000 miles lower intake gasket began leaking. Replaced myself, followed manual precisely. Upon reassembly engine began nocking. Took to dealer and they cited bad lifters and replaced them.

- Louisville, KY, USA

I have had my car in the shop several times for problems and they can typically replicate the problem, but cannot fix it. I have had 3 brake jobs on my car, as well as the calipers rebuilt, and my brakes still do not work right. The ABS system fails constantly. I experience slides on dry surfaces even. I also have transmission, coolant, and fueling problems. I have had a fuel pump replaced finally, after the 3rd time of taking it in for not starting, 2 times prior there was nothing supposedly wrong. Also, I am still getting only 125 miles on a tank of gas. They an reciprocate the problem but will not fix it. I also keep getting a low coolant and check engine message lights but they say nothing wrong. The power windows also drag and make marks on the window surfaces. They are very slow rolling up. The light in the radio area fades in and out, and the radio goes off and on alot as well as only the front speakers work primarily. Back do not. Accelerator pedal sticks, and causes car to rev up to 5000 rpms very scary!

- Magnolia, TX, USA

While driving at 50 mph the vehicle stalled without warning. Consumer had vehicle towed. The dealership ran a diagnostic on the vehicle, and indicated that the fuel pump and main computer needed to be replaced.

- Laurelton, NY, USA