Chevrolet Trailblazer Service Brakes, Hydraulic Problems
Owners have filed 140 complaints with NHTSA about service brakes, hydraulic problems on the Chevrolet Trailblazer across 13 model years. The 2002 model year has the most (44). The words owners use most often: “master cylinder” (7% of reports).
- 140service brakes, hydraulic complaints
- —median miles at failure
- 27mention a crash
- 14mention an injury
- 1related recalls
- 19%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Master cylinder: mentioned in 10 of 140 complaints (7%)
- Brakes locked: mentioned in 9 of 140 complaints (6%)
- Brake pads: mentioned in 8 of 140 complaints (6%)
At what mileage do service brakes, hydraulic problems happen?
Based on 99 complaints that reported the odometer reading.
How serious are the reports?
Of 140 complaints, 27 mention a crash, 3 a fire, 14 an injury.
Chevrolet Trailblazer service brakes, hydraulic complaints by model year
| Model year | Service Brakes, Hydraulic complaints | Share of that year | Median miles |
|---|---|---|---|
| 2024 Trailblazer | 1 | 3% | 10,000 |
| 2023 Trailblazer | 2 | 3% | 32,500 |
| 2022 Trailblazer | 2 | 2% | 77,500 |
| 2021 Trailblazer | 2 | 1% | 105,442 |
| 2008 Trailblazer | 8 | 4% | 31,000 |
| 2007 Trailblazer | 3 | 0% | 52,000 |
| 2006 Trailblazer | 13 | 1% | 50,000 |
| 2005 Trailblazer | 14 | 1% | 20,289 |
| 2004 Trailblazer | 21 | 2% | 36,500 |
| 2003 Trailblazer | 24 | 3% | 31,614 |
| 2002 Trailblazer | 44 | 4% | 40,750 |
| 2001 Trailblazer | 3 | 15% | 43,184 |
| 2000 Trailblazer | 3 | 12% | 11,200 |
When owners reported it
Related recalls (1)
Service brakes, hydraulic:foundation components:hoses, lines/piping, and fittings
Model years: 2003
Problem: Certain sport utility vehicles were built with a left-front brake pipe with a circumferential score at a random location along the length of the pipe as the result of the manufacturing process. If the brake pipe partially or fully fractured, brake pedal travel would immediately increase and front brake performance would be reduced.
Risk: If braking performance is reduced, a crash could occur.
Fix: Dealers will replace the left-front brake pipe. Owner notification began on may 29, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact chevrolet at 1-800-222-1020, gmc at 1-800-462-8782, or oldsmobile at 1-800-442-8006.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while his wife was driving at an undisclosed speed, the brake pedal felt extremely firm and was difficult to depress. The contact stated that his wife needed to anticipate the stopping distance to apply enough force to the brake…
The contact owns a 2022 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed and became stuck. The vehicle was taken to a certified mechanic to be repaired; however, the failure persisted. The dealer was contacted and informed that the…
The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving approximately 40 MPH, the vehicle stalled. During the failure, several unknown warning lights illuminated, and the vehicle was jump-started. The Auto START/STOP function was disabled for the vehicle to operate…
The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving approximately 70 MPH, the brakes became inoperative. The message "Brake Failure - Speed Reduced to 53 MPH â Service Required" was displayed on the instrument panel. The vehicle was taken to a dealer; however, the…
The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while driving at undisclosed speeds, the vehicle independently activated the brakes while the accelerator pedal was depressed. In addition, the contact stated that while attempting to make a left turn, the steering wheel…

Frequently asked questions
Do all Chevrolet Trailblazers have service brakes, hydraulic problems?
No. NHTSA has 140 owner complaints about service brakes, hydraulic for the Chevrolet Trailblazer. Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the Chevrolet Trailblazer service brakes, hydraulic?
Yes: 1 safety recall list service brakes, hydraulic. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
What do owners say about service brakes, hydraulic problems on the Chevrolet Trailblazer?
The most frequent phrase is “master cylinder”, in 10 of 140 complaints, followed by “brakes locked” (9).
Other Chevrolet Trailblazer problems
- Electrical System problems (2,355)
- Fuel System, Gasoline problems (1,401)
- Exterior Lighting problems (761)
- Power Train problems (714)
- Fuel/propulsion System problems (383)
- Air Bags problems (382)
- Engine and Engine Cooling problems (354)
- Visibility problems (348)
See all Chevrolet Trailblazer problems.