One problem related to headlights turn off while driving has been reported for the 2009 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Chevrolet Impala based on all problems reported for the 2009 Impala.
Purchased vehicle and the following day the right front headlight went out and had to be taken in for electrical problem. Later about 4 months after purchase the air bag in the front passenger seat started to make a knocking sound and then stopped. Just recently it began making the knocking sound again when I open my car door, as well as close it. It lasts about 3 minutes and then stops.