2009 Traverse purchased 4/30/2009. From the start it had a check engine light on but no symptoms of failure. We took it to dealer 1 on 9/02/2010, with 22,753 miles. They replaced wiring under engine plenum to #1 ignition coils. A couple of days later, the check engine light came back on. At this time the car started to lose power on the freeway sometimes. We took it to dealer 2 on 10/11/2010, they had to get parts and did a temporary fix. We brought it back on 11/1/2010, with 24,656 miles on it and they supposedly fixed it. They replaced connectors in the junction box, saying it was an electrical problem. The light was back on within a few days, and the car was still losing power. We took it to dealer 3 on 2/09/2011, with 30,287 miles for check engine light, and loss of power. They replaced ECM and all 6 coils. The day we left the shop, the light was back on and within a day the car was losing power again. Back to the shop on 2/17/11. This time they replaced the catalytic converter. The day after we left the shop the light was back on. They told us it needed a small adjustment and to bring it back on 3/05/11. We went to the shop and the mechanic did not know how to fix it. After being there for a few hours and calling Chevy 800 #, they told us to come back next week. On 3/06/11, the car was losing power so bad that we wanted to take it back to the shop, but they were closed. On 3/07/11 the Traverse started losing power, and then died. It lost all power and the brakes failed as a result. We had to slam on the emergency brake to not have an accident, and were lucky to not be rear ended. The car has been at the shop the week of 3/07/11-3/11/11. They told us the car is misfiring on all cylinders and dumping raw gas into the exhaust. On 3/11/11 they called to state that they are replacing the catalytic converter (again) and the module and returning the vehicle on 3/14/11.

- Macedonia, OH, USA