Research · 5 model years

Chevrolet Trailblazer ExtEvery model year, 2002–2006

Across the 5 model years we’ve synced, NHTSA lists 13 recall campaigns and 6,896 owner complaints for the Chevrolet Trailblazer Ext. The 2005 model year has the most complaints (1,703).

01 —Model years

Chevrolet Trailblazer Ext years compared

Recalls, complaints, NCAP overall and EPA combined MPG per year
YearRecallsComplaintsCrashesNCAP overallMPG comb.
200661,31331Not rated16
200501,70366Not rated15
200411,35763Not rated16
200331,25576Not rated15
200231,268109Not rated16
Data from NHTSA recalls, complaints & NCAP; EPA fueleconomy.gov · synced Nov 10, 2026
02 —Complaints by year

NHTSA complaints per model year

Newer years have had less time on the road
View as table
Model yearNHTSA complaints
20021,268
20031,255
20041,357
20051,703
20061,313

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 10, 2026
03 —Recent recalls

Latest recalls for the 2006 Trailblazer Ext

6 campaigns

Visibility: power window devices and controls

Free remedy

General Motors LLC (GM) is recalling certain model year 2006-2007 Buick Rainier, Chevrolet Trailblazer and GMC Envoy vehicles, and 2006 GMC Envoy XL and Chevrolet Trailblazer EXT vehicles. Fluid may enter into the driver's door master power window switch module, causing corrosion that could result in a short in the circuit board, causing window switches to become inoperative. Previously, the affected vehicles may have had their master power window switch module treated with a protective coating, instead of having it replaced.

VisibilityReported Sep 24, 2015NHTSA 15V599000

Exterior lighting: headlights

Free remedy

General Motors LLC (GM) is recalling certain model year 2007 Pontiac Grand Prix, 2006-2009 Buick LaCrosse, 2006-2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, 2006 Chevrolet Trailblazer EXT, GMC Envoy XL, 2006-2008 Isuzu Ascender, and Saab 9-7x vehicles. In the affected vehicles, the headlamp driver module (HDM) may overheat and fail, causing the headlamps and daytime running lights to not illuminate.

Exterior lightingReported Aug 14, 2015NHTSA 15V519000

Visibility: power window devices and controls

Remedy pending

General Motors LLC (GM) is recalling certain model year 2005-2007 SAAB 9-7x; 2006 Chevrolet Trailblazer EXT and GMC Envoy XL; and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier and Isuzu Ascender vehicles. Fluid may enter the driver's door master power window switch module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.

VisibilityReported Jul 2, 2014NHTSA 14V404000
Data from NHTSA Recalls API · synced Nov 10, 2026