The contact owns a 2006 Buick Terraza. The contact stated that the antitheft alarm engaged inadvertently, causing the vehicle to shutoff while driving. The START/STOP Disabled message was displayed. The vehicle was taken to the dealer where it was diagnosed that a steering wiring cable might be detached. The vehicle was repaired; however, the failure reoccurred twice while driving. The vehicle was towed to the dealer where unknown repairs were completed. The contact also stated that the electronic stability control and the traction control warning lights had illuminated while driving. Additionally, the contact stated that the rear driver's side door handle was fractured. The contact also stated that the rear passenger's side sliding door handle was fractured and she noticed that the sliding door wiring cable had detached, causing the door lock chime to engage while driving as the door would no longer close completely. The manufacturer was notified of the failure but did not provide any assistance. The vehicle was not diagnosed or repaired. The failure mileage was approximately 149,000.

- Springfield, MO, USA

On May 2, 2013, about 10am, I was on my way home. The steering wheel suddenly out of control and my car hit on a car park on the street side with none inside. My car had severe damage and cost about $10,000 to fix. The other car I hit on had medium damage. The air bag pop out with a lot of dust and it was flat. A lot dust blow on my face. The air bag had no air at all. It was all flat. The steering wheel had been kind of tight and difficult to turn for three years. I thought it was normal for the big vehicle, so I had not brought attention to the dealer. I request the NHTSA to investigate 2006 Buick Terraza's steering system. I am sure that something is not quite right in the steering design and manufacturer.

- San Mateo, CA, USA

The contact owns a 2006 Buick Terraza. The contact stated that while driving approximately 20 mph, the steering wheel became extremely difficult to maneuver. The contact lost control of the steering wheel and crashed into another vehicle. The vehicle was towed from the scene. There were no injuries and a police report was not filed. The manufacturer was not made aware of the failure. The vehicle was not repaired or inspected for the cause of the steering failure. The approximate failure mileage was 40,000.

- San Mateo, CA, USA

The power steering rack failed, making it difficult to control/steer the vehicle at low speeds. I have since heard this referred to as "GM power steering syndrome." It is a common problem of GM cars where the valve in the power steering rack has problems. The power steering fluid cannot get through, particularly at low speeds, making it very difficult to steer. (at higher speeds - when the accelerator is depressed - there is extra pressure forcing the fluid through, so it is a bit easier to steer at higher speeds. The valve failure resulted in failure of the rack, pump, and whole system.

- Cape Elizabeth, ME, USA

It is probably a shorter list to list what we haven't had trouble with, but here goes. 1. the back power sliding doors will open and shut at will. Driving down the road, parted in the grocery store parking lot, etc. The neighborhood kids regularly come over to tell me my doors are open. My husband almost missed a flight because he spent to much time trying to fight with the door to stay shut. They have replaced almost every part of the doors several times, but was told by the dealership that last time I took it in they didn't know what to do now. 2. door locks will lock and unlock at will. One day it locked my 1 year old and 3 year old in the van when it was 107. It locked them in from the time it took me to walk from the passenger side to the driver's side. It finally unlocked on its own after not quite 10 min. My children would be dead if it hadn't already been cooled on the inside, but they wouldn't have lasted much longer. The dealership states that they can't duplicate the problem and don't know what to do to correct. 3. noise in steering column. Rack and pinion replaced, another repair done. The repairs last about 5 - 10K miles. 4. transmissions slips. They did a reset of something, but transmissions still slips, but the dealership states that the transmission is fine. 5. fuel gauge. It has always floated, was told that was how GM makes their gauges until I took it the last time to the dealership and now they state that it is a fuel sensor, but it is out of factory warranty and they never even looked at it before as they always told me that it was functioning as designed.

- Sachse, TX, USA