One problem related to brake disc caliper has been reported for the 2002 Chevrolet Trailblazer. The most recently reported issues are listed below.
Wear indicator on pad indicated time to change pads. When changing pads noticed dry rot on piston boot on rh front caliper. Also, rotors severely corroded to the point they need to be replaced. Ends are breaking off rotors almost to the point where pads contact the rotors. Miles on vehicle 40k.