1999 GMC Sierra service brakes, hydraulic problems
280 owner complaints filed with NHTSA name the service brakes, hydraulic on the 1999 GMC Sierra — 47% of all complaints for this model year.
What owners report
“Tl* the contact owns a 1999 gmc sierra. The contact stated that while driving approximately 5 mph the contact depressed the brake pedal slightly when he noticed the brake pedal dropped to the floor board. The contact applied the emergency brake in order to stop the vehicle. The contact inspected…”
filed Oct 9, 2012
“Was applying brake when all the sudden brake pedal went to the floor and lost alot of braking power almost could not stop if not for emergency brake truck has only been in salt 3-4 times I have owned it since 2002 and it had 40k miles on it when I bought it now has 84k and brake lines are rusted…”
filed Mar 17, 2012
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES MAY EXPERIENCE UNWANTED ANTILOCK BRAKE…Campaign 05V379000 · Aug 29, 2005
- VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND SPORT UTILITY VEHICLESCampaign 00V345000 · Oct 30, 2000
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, 2017Chevrolet/gmc/cadillac: anytime hydraulic brake pipes assembly need replacing, pre-formed and pre-flared brake pipes are available, except rear axle crossover pipe. Model 1999-2007 silverado, sierra, 2000-2006 escalade…
SB-13-05-22-001 · Service Bulletin/Repair Instructions · issued Sep 1, 2014This 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.
PIT3665C · Service Bulletin/Repair Instructions · issued Nov 6, 2012
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% |
| 2004 Sierra | 28 | 15% |
| 2003 Sierra | 38 | 18% |
Other reported problem areas on the 1999 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.