One problem related to differential unit has been reported for the 2012 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Chevrolet Impala based on all problems reported for the 2012 Impala.
Clunking sound from transmission differential. . . When you pull out from a stop you get a clucking noise and the car cannot go. . . Something is grabbed. . Pulling onto a city street or going in reverse from driveway. . Mechanic has been unable to find problem after 5 attempts.