One problem related to brake disc caliper has been reported for the 2002 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Chevrolet Impala based on all problems reported for the 2002 Impala.
At around 10000 miles, after braking at an intersection, heard a loud squealing sound coming from left front tire. Took car to dealership and they said the caliper had seized. They repaired the caliper, replaced the brake pad and turned both front rotors. Now at 47000 miles, again after pulling away from an intersection, with no previous indicators, I heard a horrible metal on metal grinding sound and vehicle was barely drivable to get off the road. Took the car back to dealership, and they said that the left inside brake pad was practically gone even though there was no noise from a wear indicator, and as a measure of "good faith" they would replace the caliper, but because the left rotor was damaged, I would need to again have both front rotors turned before new front pads could be installed. Dealer denies any responsibility or fault for not having replaced the defective left front rotor in the first place. I'm stuck with a $200 bill for new front brakes without any warning from a brake wear indicator, or any obvious pulling, shimmy or other normal indicators that new brake pads might be required.