On December 31, 2009, my 25 year old daughter was driving along an interstate in her Chevy Cobalt. She crashed into a tree along the side of the interstate. Her airbags did not deploy, and her seatbelt did not lock. She died on impact, according to the police on reviewing the scene of the accident, my son observed that the tracks left by the car before it crashed were in a straight line, suggesting that the brakes either had not been applied or had not worked. On doing research, he found information online suggesting that there had been other, similar crashes in Cobalts and that the ignition switch was thought to be defective. We have already addressed this with GM and completed our action, and, at the time, I filed a consumer complaint to document the issue. I just read that this Agency will be investigating the issue, and I wanted to make sure you were aware of my daughter's death in a Cobalt in which the air bags did not deploy, the seatbelt did not lock, and that we strongly suspect, though GM never confirmed this, had a defective ignition switch.

- Nashville, TN, USA

Vehicle was exiting interstate 81, traveling approximately 55 mph. Though braking, the car was not slowing properly and the steering was very hard, power seemingly lost. The car could not be steered around the left hand curve and hit a bridge abutment and spun around before coming to rest with the motor not running. This apparent mechanical failure was noted in the police report of the accident.

- Maybrook, NY, USA

First got a very small crack in windshield and next day splintered all way across, still have not replaced first Chevy I've owned that windows are crap. Speakers have not worked in front ever and only come on and work randomly now and than. Now brake fluid light constantly coming on even after a day I put fluid in. This is officially worst car I've owned out of all Chevrolet had!!!! basically all service to it costs as much as car!

- Yardville , NJ, USA

The vehicle has a recurring problem with the parking brake. The rear brake calipers lock up causing the parking brake to malfunction. The vehicle rolls away if not left in gear. The vehicle has experienced this problem three times over the past 15,000 miles.

- Cincinnati, OH, USA

The contact owns a 2006 Chevrolet Cobalt. The contact stated that while driving 65 mph, with the cruise control activated, the brakes seized when depressed and did not deactivate the cruise control function. The contact crashed into a median strip and upon impact, the air bags failed to deploy. The contact sustained bruising, whiplash, and shoulder and neck injuries. The vehicle was neither repaired nor diagnosed. A police report was not filed. The manufacturer was not contacted. The failure was approximately 29,000..

- Harrodsburg , KY, USA

While driving to work, steering wheel had been shaking (55mph). Getting off the belt line, traffic came to a sudden stop. I brake, but the car continued to shake and didn't brake. Had to pull to the side to avoid hitting the car in front of me. Car would not accelerate when traffic started up, and I had to turn the ignition off and restart. Car shook badly for a few seconds, then seemed fine. A few days later, driving into my parking lot (10mph) the car's brakes locked up for no reason and I barely got it into a parking space. Took it in to the dealership the car was purchased at and was told the rotors, brakes, and calipers would need to be replaced. Had another mechanic look at it and had the brakes and rotors replaced. Car drove fine. Six weeks later, driving on the highway (60 mph), slowed down to turn onto another road, and brakes were out. Had another mechanic look at the car, brakes and rotors are worn down again, as well as calipers and brake line. Road conditions were clear at the time of each incident.

- Madison, WI, USA