Two problems related to brake abs warning light have been reported for the 1999 GMC Suburban. The most recently reported issues are listed below.
The contact stated there was a recall for the brakes on certain GMC vehicles, but this vehicle was not included. When applying the brakes the vehicle will not come to a complete stop. This only happened when he driving at slower speeds. When applying the brakes the abs will activate. The abs light was not illuminating and the rotors were not warped. A local mechanic inspected the vehicle, and said there was something wrong with the abs. The mechanic did not specify the exact problem of the abs. The dealer and manufacturer stated there was a recall, but this model was not included. Update 11/30/2005 - there is a recall for 1999 GMC trucks but not Suburbans.
Brake and abs unsafe and in for chronic repairs. Have owned vehicle for less then a year when problem started. Rotors cracked due to excessive heat. Had heavy duty rotors put on. In the rain, abs locked. . . Near miss of an accident. Within weeks had back in for repairs due to excessive wear. . . Was informed of GMC bulletin regarding brakes. Took to dealer to check brakes and abs. Had proportioning valve put in and rear brakes replaced. Then had to replace front rotors again due to wear. . All within 2-3 months. Then abs light came on, and abs staring locking intermittently on its own. There is a leak at the master cylinder. The proportioning valve was just installed 12 days ago! we left it at the service center at the dealer (its a Sunday)! too scared to drive with my preschooler in the car! the vehicle only has 42k!.