Where is the in cabin air filter on a 2008 Chevrolet trailblazer?

The cabin air filter on a 2008 Chevrolet Trailblazer is located behind the glove box. You'll need to remove the glove box to access it. There are usually screws or clips holding the glove box in place. Consult your owner's manual for specific instructions and diagrams, as the exact procedure may vary slightly.