{"nhtsa_id":10003636,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2003-10-27","date":"2003-05-07","document_id":"050703","mfr_campaign":null,"replaces":null,"component":"INTERIOR LIGHTING","mfr_system":null,"summary":"NEW TECH LINE SOFTWARE AVAILABLE TO REDUCE INDICATOR BULB ILLUMINATION BY 65% DUE TO REPORTS THAT THE INSTRUMENT CLUSTER HIGHBEAM INDICATOR IS TOO BRIGHT. 2003 CHEVROLET, GMC AND CADILLAC FULL-SIZE PICK-UP AND UTILITY TRUCKS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10003636","components":[{"id":"lighting","name":"Lighting","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"CADILLAC TRUCK","year_from":2003,"year_to":2003,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"CHEVROLET TRUCK","year_from":2003,"year_to":2003,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"GMC TRUCK","year_from":2003,"year_to":2003,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}