Seven problems related to abs brake fail have been reported for the 1996 GMC Sonoma. The most recently reported issues are listed below.
This is an update to a previously submitted report for abs failure on this vehicle. The incident date on this report is approximate. The two wires to the right front abs sensor were severed by interference with the upper control arm and the disk brake back plate/splash shield, to which the wiring is attached with riveted metal clips. It appears that the wires became trapped between the upper control arm stamping and the hub and/or disk brake back plate/splash shield, possibly during turns that cycled the front suspension. The wiring insulation is worn in several locations other than the break point, and the first metal clip has been torn off the pop rivet that holds it to the backplate/splash shield. This is the second time this wiring has failed due to this design or installation defect. The first failure was repaired under warranty. No repairs have been performed at this time as we have been waiting for recall information from gm, which arrived recently, but it addressed an abs programming problem that affected braking on surfaces that transitioned from wet to dry and back.
Driving down the highway and the car in front of the truck made a sudden stop, applied pressure to the brake pedal and the truck didn't slow down. Had to press harder on the brake pedal, and the pedal was hard and went to the floor. Took truck to the dealer, and was told that the abs motor had failed. The dealer replaced the motor.
Abs brakes failed to stop in time, causing an accident.
Abs brakes failed, causing an accident.
Abs brake system failed.
Abs system failure, partial loss of braking on all four wheels. Tt.
Abs brakes failed three times, once resulting in a rear end clash.