1999 GMC Sierra 1500 service brakes, hydraulic problems
70 owner complaints filed with NHTSA name the service brakes, hydraulic on the 1999 GMC Sierra 1500 — 44% of all complaints for this model year.
What owners report
“Tl* the contact owns a 1999 gmc sierra 1500. While driving at an unknown speed, the brakes failed as the brake warning indicator illuminated. The vehicle was taken to a mechanic, who stated that the brake lines failed and were rusted. The vehicle was not repaired and the manufacturer was notified…”
filed Jun 9, 2014
“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…”
filed Jun 26, 2012
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Service Brakes, Hydraulic problems in other Sierra 1500 years
| Year | Reports | Share |
|---|---|---|
| 2026 Sierra 1500 | 1 | 1% |
| 2024 Sierra 1500 | 1 | 0% |
| 2023 Sierra 1500 | 2 | 0% |
| 2022 Sierra 1500 | 2 | 0% |
| 2021 Sierra 1500 | 1 | 0% |
| 2020 Sierra 1500 | 3 | 1% |
| 2019 Sierra 1500 | 8 | 1% |
| 2018 Sierra 1500 | 4 | 1% |
| 2017 Sierra 1500 | 6 | 2% |
| 2016 Sierra 1500 | 6 | 2% |
| 2015 Sierra 1500 | 11 | 2% |
| 2014 Sierra 1500 | 5 | 1% |
Other reported problem areas on the 1999 GMC Sierra 1500
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.