RepairPal Certified shops can diagnose and repair your 2002 Chevrolet Trailblazer. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
you have to go to the inside door panel take it off then unscrew the locking mechinzime once you get it out i socked it over night in P B BLaster and put it back in and its been fine i spray it once a month now to keep it lubed