My differential locked up, even after the recall for the pinion seal was completed. My vehicle lost control on the highway.

- Waterbury, CT, USA

I had just exited the highway and waited at the end of the ramp for the traffic signal to change. I was proceeding into the intersection after waiting for light to change. I began to accelerate and another car ran the light and hit my car on passenger side. The responders said I was T-boned. When I got hit the car steering wheel locked up, the car came out of gear, the gear mechanism inside the car came apart, the brakes didn't work. I had no control of the car, it shut down. The only thing that stopped me from hitting the metal guardrail was the car ended up on the curb on left of road in the bushes. The passenger window shattered and windshield on passenger side was damaged. The passenger door was pushed into the car and neither of the airbags deployed. The responder's commented that they were surprised that the airbags didn't deploy as hard as I was hit. The vehicle has been deemed a total loss as the damage is extensive. Previously on a few days have had to jiggle the steering wheel and the keys in ignition to turn so that I could start my car. I had previously checked the GM site and entered my VIN because I had times when the ignition switch in my car would not work. There was no recall for my vehicle.

- Decatur, GA, USA

Fatal car crash resulted in death of driver (only person in the automobile). History of service brakes hydraulic problem on the 2006 Cadillac Cts--pressing brake pedal and lunging or sudden abnormal acceleration with loss of steering.

- Tallahassee, FL, USA