YearToAvoid

2006 Chevrolet Trailblazer Ext Electrical System Problems

NHTSA has 47 owner complaints about electrical problems in the 2006 Chevrolet Trailblazer Ext, 25% of all 189 complaints for this model year. These complaints report 2 fires. Median mileage at failure: 70,858 miles.

Electrical System complaints
47
25% of 189 complaints
All complaints this year
189
Crashes reported
0
Fires reported
2
Injuries reported
0
Median mileage
70,858 mi
Related recalls
1

When 2006 Chevrolet Trailblazer Ext electrical complaints were filed

First complaint Apr 22, 2006, latest Dec 8, 2016.

2006 Chevrolet Trailblazer Ext electrical system complaints: complaints filed per month4Apr 2006Apr 2009Jul 2010Sep 2011Jul 2012Apr 2013Sep 2014Apr 2016
47 complaints filed with NHTSA from Apr 2006 to Dec 2016; peak Oct 2012 (4).

Electrical System recalls for the 2006 Chevrolet Trailblazer Ext

  1. NHTSA 15V519000Aug 14, 2015Electrical System429,170 vehicles

    Exterior lighting:headlights

    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.

    Risk: Headlamps that do not illuminate reduce the driver's ability to see the roadway and reduce the vehicle's visibility to oncoming vehicles, both of which increase the risk of a vehicle crash.

    Remedy: GM will notify owners, and dealers will replace the HDM, free of charge. The recall began on May 17, 2016. Owners may contact Buick customer service at 1-800-521-7300 or Pontiac customer service at 1-800-762-2737. GM's number for this recall is 14291.

Electrical System complaints by Trailblazer Ext model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 200647 (25%)

Frequently asked questions

Does the 2006 Chevrolet Trailblazer Ext have electrical problems?
NHTSA has 47 owner complaints about the electrical in the 2006 Chevrolet Trailblazer Ext, 25% of all complaints for this model year. Median mileage at failure is 70,858 miles.
Which Chevrolet Trailblazer Ext year has the most electrical complaints?
The 2006 Chevrolet Trailblazer Ext has the most electrical complaints (47), compared with 47 for the 2006.
Is there a electrical recall for the 2006 Chevrolet Trailblazer Ext?
Yes — 1 NHTSA recall campaign for the 2006 Chevrolet Trailblazer Ext concerns the electrical: 15V519000.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.