One problem related to brake grinding noise has been reported for the 2011 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Chevrolet Impala based on all problems reported for the 2011 Impala.
I continue to have problems with my front left hub after replacing. I have replaced the wiring harness as well. Wondered if there are service bulletins with this same issue. While driving the car it makes a horrible grinding noise described to me as the hub adjusting the speed of one tire to match the other. It also flashes brake assist and stabilitrack issues as well as anti lock alert. This happens mostly turning left but most recently even while driving straight down the road.