2004 GMC Sierra service brakes, hydraulic problems
28 owner complaints filed with NHTSA name the service brakes, hydraulic on the 2004 GMC Sierra — 15% of all complaints for this model year.
What owners report
“Tl* the contact owns a 2004 gmc sierra 1500. The contact stated that while driving less than 10 mph, the abs engaged independently. The vehicle was not taken for inspection or repair. The manufacturer was made aware of the issue. The contact was informed that the vehicle was not included in nhtsa…”
filed Dec 10, 2013
“Brake lines rusted through at left side just below drivers door, which resulted in a loss of brakes!!!!! After further inspection all brakes lines are severely rusted and must be replaced. This is only a 2004 truck!!!!!!!! *tr”
filed Mar 10, 2012
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- CERTAIN TRUCKS, SPORT UTILITY VEHICLES, AND VANS EQUIPPED WITH BOSCH HYDRO-BOOST BRAKE…Campaign 05V043000 · Feb 8, 2005
- CERTAIN SPORT UTILITY VEHICLES, PICKUP TRUCKS, AND PASSENGER VANS FAIL TO COMPLY WITH THE…Campaign 04V045000 · Feb 4, 2004
Related service bulletins
This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
PIT3665E · Service Bulletin/Repair Instructions · issued Jan 31, 2017
Service Brakes, Hydraulic problems in other Sierra years
| Year | Reports | Share |
|---|---|---|
| 2017 Sierra | 1 | 2% |
| 2015 Sierra | 1 | 2% |
| 2012 Sierra | 1 | 3% |
| 2011 Sierra | 1 | 2% |
| 2010 Sierra | 1 | 3% |
| 2009 Sierra | 1 | 3% |
| 2008 Sierra | 1 | 1% |
| 2007 Sierra | 2 | 3% |
| 2006 Sierra | 7 | 13% |
| 2005 Sierra | 10 | 9% |
| 2003 Sierra | 38 | 18% |
| 2002 Sierra | 93 | 37% |
Other reported problem areas on the 2004 GMC Sierra
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.