Two problems related to brake disc rotor have been reported for the 2003 Chevrolet K1500. The most recently reported issues are listed below.
The brake rotors needed to be replaced before they wore out. The service dept at the chev dealer said that rust had penetrated into the rotor and had caused the brakes to pulse. This is a common problem on pickups like my 2003 silverado K1500. It seems to be a design problem since Chevrolet switched from rear drum brakes to rear disc brakes. Chevrolet started the problem by switching from drum brakes to disc brakes. Owners shouldn't have to pay for bad rotors when it is a chev design fault.
1-rusting & flaking of rear brake rotors at 13,482 miles NY state and gm inspection done at13,460 miles 2-rear brake failure 3-two gm dealers refused to repair under warranty third gm rep states this is normal wear (not covered) rotors have large pits and crevices up to 2"long and 1/2"wide in multiple locations on both rear rotors/ had too be replaced gm refused too cover cost I have old parts and pictures of rotors on vehicle.