# 1998 GMC SIERRA — SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
> NHTSA complaint `193226` · 2000-01-20 · General Motors, LLC
## Severity
- **Deaths:** 0
- **Injured:** 0
- **Fire:** No
- **Crash:** Yes
- **Police report:** No
- **Medical attention:** No
- **Vehicle towed:** No
## Vehicle
- **Make:** GMC
- **Model:** SIERRA
- **Year:** 1998
- **Manufacturer:** General Motors, LLC
- **Component:** SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
## Narrative
INITIAL PROBLEM  09/02/98 WAS BOTH REAR AXLE SEALS LEAKING CAUSING BRAKES TO FADE.  AGAIN ON 11/04/98 REAR AXLE SEALS LEAKING, ADJUSTED BRAKES. 11/06/98 BRAKES LOCKING-UP.  11/13/98 BRAKES GRABBING, REPLACED BOTH REAR BRAKE SHOES, ABS LIGHT ON-MODULE NOT ACTIVATING BRAKE RELEASE-REPLACED ANTI-LOCK BRAKE MODULE-MASTER CYL BYPASSING-REPLACED MASTER CYL. 01/20/99 ABS LIGHT COMES ON-BRAKE PEDDLE HARD TO PUSH-REPLACED ABS BRAKE VALVE.  03/23/99 BRAKES FAILED TO SLOW VEHICLE-INVOLVED IN ACCIDENT-REPLACED ABS PRESSURE MODULATING VALVE.
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*Source: [NHTSA ODI](https://www-odi.nhtsa.dot.gov/downloads/) · AI Analytics · CC0 1.0*