One problem related to anti-lock brakes fail has been reported for the 2003 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 GMC Sierra 1500 based on all problems reported for the 2003 Sierra 1500.
2003 GMC 1500 series pickup truck. . . Won't stop slow speed anti-lock brake failure.