NHTSA Complaint #11503395 — 2010 CHEVROLET MALIBU

Since sometime in 2016, these warning messages came on the dash periodically after hitting a bump - Service Traction, Service ESC, ESC off, Eng Power Reduced. The engine light stayed on. The car then ran slowly. After stopping and pulling off again, the car jerked forward. This could be dangerous in traffic! At first, I was told by a mechanic that my gas petal sensor needed to be replaced. After each of the 3 replacements, the problem seemed to be solved. But after a while, the warning messages would return after hitting another bump. The engine light would again stay on. Now, these warning messages come on every time I drive the car, with the engine light staying on. The same problems while driving still occur. A second mechanic advised me to put in this complaint, saying the problem was well-known to Chevrolet. He diagnosed it as being caused by water getting into a poor connection between the wire safety harness and the computer. The machine at AutoZone gave this assessment of the problem - "The ECH has detected that the APP sensor 1 and APP sensor 2 disagree more than 4.5 percent for less than 1 second. Probable cause: 1. Poor electrical connection. 2. Failed APP sensor." When I took the vehicle to a Chevrolet dealer in July 2016, they were unable to fix the problem. It would be really wonderful if this serious problem was the subject of a safety recall and was fixed for all affected drivers!