Buick Terraza Acceleration problems by year

The check engine light has been illuminated as well as the traction control light is on (indicates abs needs to be serviced) also transmission "slips" when moving forward. At times when both the engine light and abs light are on the engine will reduce power. Transmission was replaced at 63,000 for the same thing! Have had to numerous shops who cannot locate issue. The doors will not lock shut- they come forward and pop out and reopen. Must operate manually. *Tr

Randomly, while driving the abs system activates the brakes, pulling the car to one-side. If my memory serves me correctly, it pulls to the right. After this happens, the car's "traction control active" message appears on the instrument panel. Parking the car, turning it off, and restarting the car causes the message to go away. This has happened about 4 times in the past 3 weeks at speeds varying from 5-35 miles per hour. I fear that it could be potentially dangerous if this were to happen at higher speeds.. ...

As I took off from a stop light, the van jerked so hard , it felt as if it was hit from behind. The next light within 5 miles, the same thing from a stop. A few days later it was much worse and the service stability control system code came up. After having it checked( immedialely), there was no code found in the vans computer. It didn't show that it ever came up. This could be fatal, especially at high speeds. When the code comes up and a mechanic can't get a reading to address the problem. Doesn't that indicate a problem ?

Tl* the contact owns a 2006 buick terraza. The contact stated that the sliding doors would open independently without warning. The contact also mentioned that the vehicle would lunge forward and suddenly accelerate. In addition, the contact mentioned that the abs and traction control warning lights were illuminated. The vehicle was taken to the dealer. The technician was unable to diagnose the failure. The manufacturer was made aware of the failure but did not offer any assistance since the vehicle was no longer under warranty. The vehicle was not repaired. The failure mileage was 5,000 and the current mileage was 72,000.

I have had on going problems with the cruise control. It disconnect without warning. I consider this a safety issue because it diverts my attention from the road. I have had the car into the dealer and they claim they can find nothing wrong. *Tr

Cruise control at 46,000 miles works intermittently. Sometimes the cruise works fine, other times it stops working as you are driving. Other times the cruise control will not engage at all. There are no accidents or injuries. Dealer cannot recreate problem, so they will not fix it. *Tr