Complaints by model year
| Year | Complaints | vs. typical* | Recalls | Top problem | Verdict |
|---|---|---|---|---|---|
| 2006 | 189 | −22% | 6 | Fuel System | Average |
| 2004 | 261 | 1.3× | 1 | Electrical | Average |
| 2003 | 313 | 1.5× | 3 | Fuel System | Caution |
| 2002 | 100 | −58% | 3 | Fuel System | Good |
* Complaints compared with the median Trailblazer EXT year at the same age, so new and old years are judged fairly. How this works.
Most common Chevrolet Trailblazer EXT problems
Latest Chevrolet Trailblazer EXT recalls
Visibility › Power window devices and controls
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.
Remedy: GM will notify owners, and dealers will install a new driver's door switch module, free of charge. The recall began on November 2, 2015.
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.
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.
Visibility › Power window devices and controls
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.
Remedy: GM will notify owners, and dealers will inspect the part number on the door module, and install a new door module if necessary, free of charge. Parts for the remedy are not currently available.
Visibility › Power window devices and controls
General Motors (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 module, causing corrosion that could result in a short in the circuit board.
Remedy: Owners will be contacted and dealers will test the driver's door module. If the module is functioning properly, a protective coating will be applied. If the module is not functioning properly, it will be replaced.
Equipment › Other › Labels
Certain trucks and sport utility vehicles fail to conform to the requirements of federal motor vehicle safety standard no. 110, "tire selection and rims." these vehicles were shipped with tire and loading information labels listing an inacccurate vehicle capacity weight.
Remedy: Owners will be provided with corrected labels and installation instructions. At the customer's option, a dealer can install the label for them. The recall began on March 31, 2006.
Frequently asked questions
What years of the Chevrolet Trailblazer EXT should you avoid?
2003 — this year has the most complaints relative to other Trailblazer EXT years at the same age, led by fuel & propulsion system problems in the 2003.
What is the best year for the Chevrolet Trailblazer EXT?
2002 has the fewest complaints compared with other Trailblazer EXT years at the same age, followed by 2006. Newer years can look better simply because fewer complaints have come in yet, so we compare like with like.
What are the most common Chevrolet Trailblazer EXT problems?
Across all years, owners report the most problems with the fuel & propulsion system (287), electrical system (277) and transmission & drivetrain (92). Fuel System complaints peak in the 2006 model year.
How many recalls has the Chevrolet Trailblazer EXT had?
9 recalls across 2002–2006. The model year with the most is 2006. See all Chevrolet Trailblazer EXT recalls by year.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.