1999 GMC Sierra 3500 Brakes Problems
- Complaints
- 9about this part
- Share
- 47%of 19 total for the year
- Median mileage
- 60,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the brakes of the 1999 GMC Sierra 3500, 47% of the 19 complaints for this model year. Where a mileage was given, the median is 60,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Every hydraulic brake line on my 75,000-mile 1999 Gmc 3500 pickup has rusted out, and had to be replaced. They all blew out when pedal pressure was applied...including one time, when I was backing up at the transfer station to unload trash. The entire truck could have gone back and fallen into the dumpster.”
NHTSA complaint #10326017, filed 2010-04, 75,000 miles“Bought a 1999 Gmc SIERRA 3500 4door 8ft. Bed with 30000 miles on it in 2001. First brake line rusted out in 2005. Second line from front to back rusted and broke 2008. Fuel line rusted and leaked gas all over my driveway 2010. Today that same truck? Is in a repair shop because the frame by the steeringbox and passenger side front rusted and cracked. Its a shame Gmc used such bad materials for their trucks. My truck now has only 97000 miles on it. If it cant be fixed safely the scrap yard is its next stop and a ford will take its place. To bad Gmc you lost another customer.”
NHTSA complaint #10586534, filed 2014-05, 60,000 miles“I was driving in town closing in on an intersection as the light began to change red, two sedans were in front of me so I applied my brakes allowing plenty of time to stop when without warning the brake pedal sunk quickly to the floor and did not slow at all. I had to veer into the turn lane but could not make the turn due to speed and oncoming traffic. I cleared the intersection and had to veer into a busy parking lot ran over a stop block and continued through 2 yards and out a driveway back onto yet another road where the vehicle finally came to a stop. …”
NHTSA complaint #10475579, filed 2012-09, 250,000 miles“While braking vehicle pulsated and the brakes locked up, causing extended stopping distance. Dealership was notified, but did not resolve the problem.”
NHTSA complaint #10083852, filed 2004-07, 59,000 miles“Dt: contact has 1999 Gmc,. He had to replace the brake lines 6 times. The brake lines were corroded. When the brake pedal was pressed the brake line blew out. Contact lost the front brakes on 4 different occasions, and lost rear brakes only once. Vehicle has not been to a service dealer for repairs. Contact has replaced the brake lines with after market equipment.”
NHTSA complaint #10125920, filed 2005-06Related service bulletins
- 10242252Aug 18, 2023This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.
- 10226382Oct 18, 2022This 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…
- 10208027Jan 14, 2022This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester…
- 10178353Jun 26, 2020This 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…
- 10162149Jun 24, 2019This 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…
- 10161004May 13, 2019This 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…
- 10129088Jan 23, 2018This 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…
- 10246647Sep 1, 2014Pre-Formed and Pre-Flared Hydraulic Brake Pipe Kits Now Available for Service
- 10246645Nov 1, 2013Pre-Formed and Pre-Flared Hydraulic Brake Pipe Kits Now Available for Service
Brakes: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 20% |
| 2025 | 5 | 29% |
| 2024 | 11 | 22% |
| 2023 | 2 | 7% |
| 2022 | 4 | 13% |
| 2021 | 5 | 25% |
| 2020 | 7 | 14% |
| 2019 | 4 | 31% |
| 2018 | 6 | 43% |
| 2017 | 5 | 38% |
| 2016 | 6 | 32% |
| 2015 | 4 | 13% |
| 2014 | 1 | 14% |
| 2013 | 1 | 7% |
| 2012 | 1 | 11% |
| 2008 | 1 | 4% |
| 2007 | 3 | 19% |
| 2006 | 2 | 18% |
| 2005 | 10 | 42% |
| 2004 | 14 | 58% |
| 2003 | 3 | 43% |
| 2002 | 9 | 45% |
| 2001 | 16 | 44% |
| 2000 | 12 | 46% |
| 1999 | 9 | 47% |
| 1998 | 4 | 33% |
| 1997 | 4 | 40% |
Other parts of the 1999 GMC Sierra 3500
3 complaintsTires
3 complaintsEngine cooling
2 complaintsSeats
2 complaintsAir bags
1 complaintsElectrical system
1 complaintsFuel system
1 complaints
← All problems reported for the 1999 GMC Sierra 3500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology