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Model Year Problem Record

Chevrolet Trailblazer EXT 2004 - Problems, Recalls, and Investigations

The complete public record for the 2004 Chevrolet Trailblazer EXT: what owners reported, which systems drew recalls, and where complaints exist that no recall has ever covered.

261Distinct owner complaintsSource: NHTSA Complaints
1Recall campaignsSource: NHTSA Recalls
3Defect investigationsSource: NHTSA Investigations
16Complaints reporting a crash or fireOwner Reports, Unverified

Complaints by System

Distinct complaints naming each system, most reported first. Select a system for its own page.

Did a Recall Cover It?

The join between complaints and recalls for this model year, system by system. A gap does not prove a defect - it means owners reported the problem and no recall campaign covers that system on this model year.

Electrical System147 complaints

147 complaints; no recall campaign covers this system.

Fuel and Propulsion System46 complaints

46 complaints; no recall campaign covers this system.

Engine21 complaints

21 complaints; no recall campaign covers this system.

Power Train18 complaints

18 complaints; no recall campaign covers this system.

Lighting13 complaints

13 complaints; 1 recall campaign covers this system. Campaigns: 04V527000.

Vehicle Speed Control9 complaints

9 complaints; no recall campaign covers this system.

Equipment9 complaints

9 complaints; no recall campaign covers this system.

Steering8 complaints

8 complaints; no recall campaign covers this system.

Visibility8 complaints

8 complaints; no recall campaign covers this system.

Air Bags7 complaints

7 complaints; no recall campaign covers this system.

Vehicle Structure7 complaints

7 complaints; no recall campaign covers this system.

Unknown Or Other3 complaints

3 complaints; no recall campaign covers this system.

Latches, Locks and Linkages3 complaints

3 complaints; no recall campaign covers this system.

Seat Belts2 complaints

2 complaints; no recall campaign covers this system.

Seats2 complaints

2 complaints; no recall campaign covers this system.

Tires1 complaints

1 complaints; no recall campaign covers this system.

Wheels1 complaints

1 complaints; no recall campaign covers this system.

Brakes1 complaints

1 complaints; no recall campaign covers this system.

Recall Campaigns

Every campaign covering this model year, in our own words. The campaign number is the official reference.

04V527000Reported November 1, 2004 - 871,473 vehicles potentially affected

Lighting. Recall covering the lighting system, reported to NHTSA on November 1, 2004. The campaign covers an estimated 871,473 vehicles across all affected models.

Defect Investigations

NHTSA's Office of Defects Investigation opened these investigations touching this model year.

EA04021Opened August 3, 2004 - Closed November 4, 2004

BRAKE LAMP FAILURE. Resulted in recall campaign 04V527000.

EA07009Opened July 10, 2007 - Closed August 28, 2008

FUEL PUMP MODULE LEAKS GASOLINE. No recall campaign resulted from this investigation.

RQ17002Opened April 24, 2017 - Closed March 29, 2021

Loss of Headlights. No recall campaign resulted from this investigation.

Complaints by Year Received

When this model year's complaints reached NHTSA - whether its problems surfaced early or late in its life.

20042
200510
200612
200719
200833
200956
201047
201133
201212
201312
20149
20153
20162
20176
20182
20193
How to Read These Counts: complaint counts are owner reports to NHTSA, not failure rates. Older and higher-volume vehicles accumulate more reports, and counts are not adjusted for vehicles sold - no per-sales rate or reliability ranking is shown, because the public data does not support one.

Data as of October 30, 2026. Sources: NHTSA Office of Defects Investigation complaints, recalls, and investigations files (U.S. Government public domain). DefectRecord is not affiliated with NHTSA or any manufacturer. For your specific vehicle, use NHTSA's VIN lookup. Report an error.