Three problems related to brakes failed have been reported for the 2004 GMC Sierra. The most recently reported issues are listed below.
All fuel and brakes like rotted. The brakes failed for the second time. One break line was previously replaced approx. 1 year ago. Both times vehicle needed to be towed for repair. Total cost for most recent replacement/repair was $1202. 13.
2004 GMC Sierra brakes fail when there is snow on the ground. The brakes would grab and grind while braking which caused extended stopping distance. The brakes work properly on dry surfaces.
Purchased vehicle in November 2003, and on 12-22-03 had a minor accident. This occurred at a low speed at which consumer tapped another vehicle from behind. Took vehicle to a dealer. He checked the vehicle diagnosticians via computer, but the codes checked out as well as a test drive and inspection from the service department. This checked out as adequate, no problems found. About 2 months later, experienced a similar accident. Consumer called gm to inquire about this problem. Again taken to dealer, and no problem found. 5-7-05 experienced another accident that resulted in 3 injuries. The accident happened as consumer was approaching an intersection from about a distance of 60 feet and traveling about 45 mph when applied brake failure and suffered a complete failure with no brakes at all. "brakes would not even grab. " glided through intersection striking another vehicle that resulted in 3 injuries. Took to dealer who checked vehicle and again found nothing wrong yet consumer feels as though brakes are not functioning properly.