One problem related to brake antilock control unit/module has been reported for the 1999 GMC Sierra 2500. The most recently reported issues are listed below.
When the vehicle was shut off, the anti lock brake motor blew out.
| Brake Hoses, Lines/piping, And Fittings problems | |
| Brake Electric Antilock problems | |
| Brake Master Cylinder problems | |
| Brake Fluid Leak problems | |
| Service Brakes problems | |
| Brake Antilock Control Unit/module problems |