One problem related to automatic transmission control module has been reported for the 2005 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Chevrolet Impala based on all problems reported for the 2005 Impala.
Car was running in my driveway while in park. I went in the house because I fogot my cell phone. About two minutes later the car crashed through my fence and I ran outside and jumped in it as we crashed through the garage door. The car had to be in park because the door opened from the outside and the wheels were locked so it drove straight. It has now been at the dealership for 20 days and nothing has been done. Gm hasn't been any help and my insurance cannot touch the car until gm inspects it. My rental runs out in 8 days.