1999 GMC Sierra 1500 Brakes Problems
- Complaints
- 103about this part
- Share
- 65%of 158 total for the year
- Median mileage
- 114,191miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 103 complaints about the brakes of the 1999 GMC Sierra 1500, 65% of the 158 complaints for this model year. Where a mileage was given, the median is 114,191 miles. 8 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I started my truck to pull out of my driveway monday 7-1-2013 brake pedal hit the floor..checking the system I found fluid leak under rear of truck. Line rust color, leak, air coming from line. Called mechanic. Will have results next week. Truck has to be towed..if I had been driving I would have been in a crash...this situation needs serious attention......I am blessed. Will update from mechanic next week.”
NHTSA complaint #10522975, filed 2013-07, 172,000 miles“Stopped in my driveway to get newspaper and mail. I got back into the truck and applied the brake to shift into drive. The brake pedal went to the floor. I coasted up the driveway and was able to stop. When I got out of the truck there was a trail of brake fluid. The leak was coming from under the driver's seat area, where the brake line attached to the ABS pump. My mechanic had to replace all of the brake lines.”
NHTSA complaint #10463161, filed 2012-06, 192,150 miles“I was in a driveway and attempted to stop to turn onto the main road, when I pressed the brakes they went to the floor. I used the park brake to stop and returned home. I found the leak, it is on the brake line where a group of four lines run along the frame under the drivers seat.”
NHTSA complaint #10490596, filed 2012-12, 199,000 miles“1999 Gmc sierra, two cars infront turning left, went to apply brakes and pedal went to floor, no brakes. Ended up crashing into the car in front of me, which in turn hit the car turning. As I was making sure no one was hurt, I noticed that my truck was leaking brake fluid all over the road.”
NHTSA complaint #10414035, filed 2011-07, 70,000 miles“As I was approaching a stoplight, my brake pedal went to the floor. I limped it around the corner and found a hole in a hard brake line. I had it repaired by a certified mechanic. Now a second rupture has occurred. This seems to be a result of corrosion.”
NHTSA complaint #10471240, filed 2012-08, 175,000 milesRelated service bulletins
- 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…
- 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…
- 10078876May 11, 2016This 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
Brakes: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 5 | 3% |
| 2025 | 7 | 6% |
| 2024 | 11 | 3% |
| 2023 | 17 | 3% |
| 2022 | 30 | 5% |
| 2021 | 25 | 4% |
| 2020 | 55 | 11% |
| 2019 | 114 | 17% |
| 2018 | 44 | 14% |
| 2017 | 108 | 30% |
| 2016 | 106 | 31% |
| 2015 | 229 | 32% |
| 2014 | 144 | 19% |
| 2013 | 2 | 2% |
| 2012 | 5 | 5% |
| 2011 | 6 | 2% |
| 2010 | 1 | 1% |
| 2009 | 6 | 3% |
| 2008 | 10 | 3% |
| 2007 | 25 | 10% |
| 2006 | 67 | 46% |
| 2005 | 50 | 28% |
| 2004 | 67 | 32% |
| 2003 | 105 | 58% |
| 2002 | 127 | 77% |
| 2001 | 108 | 77% |
| 2000 | 131 | 72% |
| 1999 | 103 | 65% |
| 1998 | 18 | 31% |
| 1997 | 18 | 22% |
| 1996 | 2 | 40% |
Other parts of the 1999 GMC Sierra 1500
10 complaintsBody and structure
9 complaintsElectrical system
8 complaintsFuel system
7 complaintsSuspension
7 complaintsEngine cooling
6 complaintsOther or unknown
6 complaintsSteering
4 complaintsSeat belts
3 complaintsTires
3 complaintsAir bags
2 complaintsTransmission and drivetrain
2 complaints
← All problems reported for the 1999 GMC Sierra 1500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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