Produced for the 2002 through 2009 model-years, the TrailBlazer is an SUV from the Chevrolet division of General Motors. Most of the vehicle's eight model-year entries have transmission problems that range from the moderate to the severe.
First TrailBlazer Models
The debut model-year of the Chevrolet TrailBlazer, the 2002, has the most severe of the vehicle's common transmission problems: failures in the 2-to-3 shift solenoid, the transfer case control module and the rear differential pinion seal. The all-wheel-drive (AWD) versions of the 2003 models tend to experience failure in their front and rear axles. In the 2004 TrailBlazer AWD, the axle problem is restricted to the front axles although the vehicle has occasional problems with the transfer case encoder motor.
Later Models
The 2005 and 2006 TrailBlazers do not have as many transmission problems as the other model-years. However, the front pinion seal on these vehicles occasionally leaks oil. As of September 2010, the last Chevrolet model years--2007 to 2009--were virtually trouble-free in terms of transmission issues.
Cost
As of September 2010, the costs for fixing the Chevy TrailBlazer's transmission-related problems vary widely. It can be as little as $7 for labor and $45 for parts to repair the front pinion seal or as much as $500 total to take care of the common transmission problems in a 2002 vehicle.
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