One problem related to headlight switch has been reported for the 2008 Chevrolet Trailblazer. The most recently reported issues are listed below.
Tl the contact owns a 2008 Chevrolet Trailblazer. The contact stated that the headlight driver module (hdm) failed to function properly, which prevented the low beam headlights from illuminating when needed. Jackson Chevrolet (660 s main st, middletown, CT 06457, (860) 316-4063) diagnosed that the hdm relay switch needed to be replaced. The contact stated that the vehicle exhibited the same symptoms as listed in NHTSA action number: rq17002 (exterior lighting). The vehicle was not repaired. The manufacturer was notified and stated that the vehicle year was not included in manufacturer recall number: 14291. The failure mileage was not available.