We don't have a lot of Chevrolet Trailblazer EXT electrical problems on file — feel free to add yours here. The most common Trailblazer EXT electrical problems occur at 119,000 miles. Click on a year below.

Worst Electrical Problems
battery not holding charge 2004 Chevrolet Trailblazer EXT
instrument panel not working 2005 Chevrolet Trailblazer EXT
wipers come on/stay on 2006 Chevrolet Trailblazer EXT