Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
2011 Chevrolet Impala Problem Reports
RepairPal Verified 2011 Chevrolet Impala Problem Reports
Acid may leak from the battery at the cable connections, resulting in corrosion on the battery cable ends and in the battery tray. A Leaking battery should be replaced and the cables thoroughly cleaned or replaced if necessary.
The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid.
An engine oil leak may develop from the front crankshaft seal. Our technicians tell us a revised front crankshaft seal is available to correct this concern.
The high pressure power steering hose will commonly leak fluid; it should be replaced.