# 2004 GMC SIERRA — SERVICE BRAKES, HYDRAULIC
> NHTSA complaint `523958` · 2005-03-28 · General Motors, LLC
## Severity
- **Deaths:** 0
- **Injured:** 0
- **Fire:** Yes
- **Crash:** No
- **Police report:** No
- **Medical attention:** No
- **Vehicle towed:** No
## Vehicle
- **Make:** GMC
- **Model:** SIERRA
- **Year:** 2004
- **Manufacturer:** General Motors, LLC
- **Component:** SERVICE BRAKES, HYDRAULIC
- **Miles at failure:** 8,927
- **Speed:** 5 mph
## Narrative
WHILE  DRIVING 5 MPH CONSUMER LOST POWER STEERING AND BRAKING CONTROL. CONSUMER MANAGED TO PULL OVER, AND HAD THE VEHICLE TOWED. DEALERSHIP WAS NOTIFIED, BUT DID NOT RESOLVE THE PROBLEM. *AK  CONSUMER STATES  HE STEPPED ONTO THE BRAKE PEDAL AND HEARD A LOUD   EXPLOSION UNDER THE HOOD.   THE CONSUMER IMMEDIATELY LOST BRAKES AND STEERING AND SMOKE ALSO POURED FROM UNDER THE VEHICLE.  ONCE HE VEHICLE WAS STOPPED THE CONSUMER EXITED THE VEHICLE AND SAW FLUID POURING FROM THE VEHICLE ONTO THE GROUND.  THE HOOD WAS OPENED AND THE CONSUMER SAW THE VEHICLE WAS TAKEN TO TWO DIFFERENT DEALER BUT THE FOUND NOTHING WRONG.  THE DEALER REPLACED THE HYDROBOOSTER ASSEMBLY ACCUMULATOR WHICH HAD COME APART.  *BF  *NM
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*Source: [NHTSA ODI](https://www-odi.nhtsa.dot.gov/downloads/) · AI Analytics · CC0 1.0*