2003 GMC Sierra service brakes problems
45 owner complaints filed with NHTSA name the service brakes on the 2003 GMC Sierra — 22% of all complaints for this model year.
What owners report
“Exiting off freeway ramp in indianapolis brake pedal went to the floor without notice and no brake fluid loss, nearly crashed crossing 5 lanes of cross traffic just lucky I wasn't broadsided by cross traffic. I received no notice of hazard from gm, no recall and only learned of this problem once…”
filed Oct 28, 2015
“I was approaching a stop light driving on a 4 lane 55 mph speed zone. As I was approaching the stop light I starting pressing on the brake pedal. The pedal had no resistance it kept going to the floor. I started pumping the pedal trying to slow my truck down, no use. I pushed pedal all the way to…”
filed Aug 4, 2015
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- 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 problems in other Sierra years
| Year | Reports | Share |
|---|---|---|
| 2017 Sierra | 19 | 31% |
| 2015 Sierra | 2 | 4% |
| 2013 Sierra | 4 | 10% |
| 2012 Sierra | 3 | 10% |
| 2011 Sierra | 3 | 7% |
| 2010 Sierra | 3 | 9% |
| 2009 Sierra | 1 | 3% |
| 2008 Sierra | 1 | 1% |
| 2007 Sierra | 12 | 20% |
| 2006 Sierra | 20 | 38% |
| 2005 Sierra | 27 | 23% |
| 2004 Sierra | 44 | 23% |
Other reported problem areas on the 2003 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.