One problem related to brake disc has been reported for the 1999 Chevrolet Blazer. The most recently reported issues are listed below.
Rear rotors have areas which are missing pieces of surface area which reduce braking ability and prematurely or abnormally wear brake pads. I had an ase certified mechanic and a chevy dealerships mechanic look at the rotors and they both determined the rotors are made of poor quality steel. I contacted gm about this and they stated that due to driving habits and area (weather), and that the warranty is over they will help with technical support only. Before having the rotors checked I could tell they were poor quality. Could NHTSA investigate other rotor cases and check with gm concerning the strength and quality of all their rotors and drums?.