One problem related to air brake wheel speed sensor has been reported for the 1999 GMC Sierra. The most recently reported issues are listed below.
Abs activation at low speed.
| Air Brake Antilock Control Unit/module problems | |
| Air Brake Antilock problems | |
| Air Brake Abs Warning Light problems | |
| Air Brake Disc Rotor problems | |
| Air Brake Wheel Speed Sensor problems |