One problem related to electric power assist steering system has been reported for the 2006 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Chevrolet Impala based on all problems reported for the 2006 Impala.
Expressway driving. Power steering failed. No previous indication. Result was a major increase in effort to steer. I felt it created an unsafe condition. I was able to exit the highway and there was no accident.