Where is the fuse box located on a 2005 Chevy Trailblazer? Where is the fuse box located on a 2005 Chevy Trailblazer? There are two boxes, one is underneath the left side back seat. Just lift the seat and lift tabs on black box, then remove the cover. The 2005 Chevy Trailblazer Fuse Box Diagram | Fuse Box And Nov 01, 20132005 chevy trailblazer fuse box diagram – welcome to my internet site, this article will discuss about 2005 chevy trailblazer fuse box diagram. We have accumulated many images, hopefully this photo is useful for you, as well as assist you in locating the answer you are seeking.