One problem related to brake master cylinder has been reported for the 1997 GMC Sierra 1500. The most recently reported issues are listed below.
The contact owns a 1997 GMC Sierra 1500. The contact stated that after engaging the brakes and coming to a complete stop, the vehicle lunged forward. The vehicle was taken to a local repair shop and they were unable to diagnose the failure. The contact stated that he replaced the hubs, rotors, calipers, and master cylinder as a temporary remedy, but the failure continued. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 14,000 and current mileage was 38,000.