2004 Chevrolet Trailblazer EXT

○ Not enough data
2004 Chevrolet Trailblazer EXT
BUILT 2026-09-02

Not enough comparison years on file yet for a fair verdict.

This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.

How is this computed?

COMPLAINTS PER YEAR

Complaints per year, Chevrolet Trailblazer EXT Bar chart of distinct NHTSA complaints filed per model year, 2004 highlighted. 2002: 100 complaints 2002 2003: 313 complaints 2003 2004: 261 complaints 2004 2006: 189 complaints 2006
2004: 261 complaints
View as data table
YearComplaints
2002100
2003313
2004261
2006189

KNOWN PROBLEM AREAS

Percentages can add to more than 100% -- a complaint can name more than one system.

ELECTRICAL SYSTEM 56%

56% of complaints: electrical system — 147 distinct reports on file, most commonly citing instrument cluster/panel.

CRASH FIRE INJURY
FUEL SYSTEM, GASOLINE 11%

11% of complaints: fuel system, gasoline — 29 distinct reports on file, most commonly citing fuel pump and tank assembly.

POWER TRAIN 7%

7% of complaints: power train — 18 distinct reports on file, most commonly citing automatic transmission and transfer case (4-wheel drive).

FIRE
ENGINE AND ENGINE COOLING 6%

6% of complaints: engine and engine cooling — 16 distinct reports on file, most commonly citing exhaust system and engine.

FIRE
EXTERIOR LIGHTING 5%

5% of complaints: exterior lighting — 13 distinct reports on file, most commonly citing flasher unit and turn signal.

SAFETY TIMELINE

I 20040803 — EA (closed 20041104)

BRAKE LAMP FAILURE

R 20041122 — exterior lighting

ON CERTAIN SPORT UTILITY VEHICLES, VIBRATION AND HEAT MAY CAUSE THE TAIL LAMP/STOP LAMP BULB TO LOOSEN IN ITS SOCKET. IF THIS OCCURS, THE BULB MAY FLICKER AND EVENTUALLY BECOME INOPERATIVE.

Remedy: DEALERS WILL INSPECT THE TAIL LAMP/STOP LAMP ASSEMBLIES, AND IF NECESSARY, REPLACE THEM. THE RECALL BEGAN ON NOVEMBER 22, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438, OLDSMOBILE AT 1-8

Campaign 04V527000 — check if this car was fixed

I 20070710 — EA (closed 20080828)

FUEL PUMP MODULE LEAKS GASOLINE

I 20170424 — RQ (closed 20210329)

Loss of Headlights

BUY-SMART CHECKLIST

2004 Chevrolet Trailblazer EXT — pre-purchase inspection

  • Test/inspect for electrical system issues (147 reports on file for this year).
  • Test/inspect for fuel system, gasoline issues (29 reports on file for this year).
  • Test/inspect for power train issues (18 reports on file for this year).
  • Verify recall 04V527000 (exterior lighting) has been completed.

FAQ

Is the 2004 Chevrolet Trailblazer EXT reliable?

There isn't enough NHTSA complaint data on file yet to give this model year a verdict.

What are the most common problems with the 2004 Chevrolet Trailblazer EXT?

The most-reported component is electrical system, accounting for 56% of complaints on file.

How many recalls does the 2004 Chevrolet Trailblazer EXT have?

1 recall on file for this model year.

Data updated 2026-09-01 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.