The Chverolet TralBlazer is a mid- size SUV from the Chevrolet division of General Motors. It is very easy to use and support is always free. Chevy Trailblazer / Trailblazer EXT, General Motors TrailBlazer Repair Manual by Chilton®. This manual is specific to a Chevrolet Trailblazer.TrailBlazer; Chevrolet TrailBlazer Manuals Manuals and User Guides for Chevrolet TrailBlazer. 2005 chevy trailblazer free repair manual. From 1999, it was an upscale trim line of the Chevrolet Blazer and in it was introduced as a separate model. Box 07130 Detroit, MI 48207 How to Use This. The first generation of TrailBlazer had two versions, an extended EXT version, and a performance oriented SS version. Keep this manual in the vehicle, so it will be there if it is needed while you are on the road.