2004 GMC Sierra 1500 service brakes, hydraulic problems
22 owner complaints filed with NHTSA name the service brakes, hydraulic on the 2004 GMC Sierra 1500 — 10% of all complaints for this model year.
What owners report
“All of the brake lines below drivers side door became extremely rusted, thus busting and releasing all the brake fluid at once, leaveingthe vehicle inoperative. *tr”
filed Apr 26, 2012
“Tl* the contact owns a 2004 gmc sierra 1500. The contact stated that while approaching a traffic stop, he attempted to engage the brakes but the pedal was depressed into the floorboard abnormally. In addition, the contact applied the emergency brake to no avail. The contact stated that in order to…”
filed Mar 20, 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 2004 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.