Chevrolet Trailblazer Service Brakes, Hydraulic Problems

Source: NHTSA · Updated Oct 9, 2026 · 140 complaints analyzed

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).

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.

Under 10k miles13 · 13%
10k–25k miles25 · 25%
25k–50k miles23 · 23%
50k–75k miles20 · 20%
75k–100k miles11 · 11%
100k–150k miles7 · 7%
150k+ miles0 · 0%

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

Peak: 2002, with 44 complaints
2000: 3200032001: 3200132002: 442002442003: 242003242004: 212004212005: 142005142006: 132006132007: 3200732008: 8200882021: 2202122022: 2202222023: 2202322024: 120241

n = 140 complaints · Source: NHTSA

Model yearService Brakes, Hydraulic complaintsShare of that yearMedian miles
2024 Trailblazer13%10,000
2023 Trailblazer23%32,500
2022 Trailblazer22%77,500
2021 Trailblazer21%105,442
2008 Trailblazer84%31,000
2007 Trailblazer30%52,000
2006 Trailblazer131%50,000
2005 Trailblazer141%20,289
2004 Trailblazer212%36,500
2003 Trailblazer243%31,614
2002 Trailblazer444%40,750
2001 Trailblazer315%43,184
2000 Trailblazer312%11,200

When owners reported it

Peak: 2005, with 19 complaints
2002: 9200292003: 18182004: 112004112005: 19192006: 122006122007: 14142008: 9200892009: 13132010: 122010122011: 552012: 6201262014: 552023: 1202312024: 112025: 1202512026: 44

n = 140 complaints · Source: NHTSA

Related recalls (1)

Service brakes, hydraulic:foundation components:hoses, lines/piping, and fittingsApr 23, 2003 · NHTSA campaign 03V151000 · 44,653 vehicles

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…

Received Aug 24, 2026 · NHTSA complaint 11759244

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…

Received Jul 13, 2026 · NHTSA complaint 11750121

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…

Received Apr 29, 2026 · NHTSA complaint 11734601

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 – Service Required" was displayed on the instrument panel. The vehicle was taken to a dealer; however, the…

Received Mar 9, 2026 · NHTSA complaint 11722954

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…

Received May 6, 2025 · NHTSA complaint 11659160
Chevrolet Trailblazer
2002-2005 Chevrolet TrailBlazer photographed in Marshall Hall, Maryland , USA.. Representative photo; appearance varies by model year. Photo: IFCAR, Public domain, via Wikimedia Commons.

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

See all Chevrolet Trailblazer problems.