{"nhtsa_id":10044349,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-06-14","date":"2012-05-01","document_id":"TIB-U-6473-00","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING:HEADLIGHTS:CONCEALMENT DEVICES","mfr_system":null,"summary":"CATERPILLAR: MOISTURE CONDENSATION ON HEADLIGHT LENS WILL BECOME PREVALENT UNDER CERTAIN ATMOSPHERIC CONDITIONS, TURNING DROPLETS, INSIDE LAMP, TO VAPOR AND CAUSING COLD LENS TO HAVE CONDENSATION ON IT. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10044349","components":[{"id":"lighting","name":"Lighting","parent":null},{"id":"headlight","name":"Headlights","parent":"lighting"}],"codes":[],"topics":[],"vehicles":[{"make":"CATERPILLAR","model":"CT660","year_from":2012,"year_to":2013,"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":[]}