{"nhtsa_id":10037022,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-04-28","date":"2010-08-01","document_id":"SB-352-005","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING:HEADLIGHTS","mfr_system":null,"summary":"MACK TRUCKS: THE FOAM SEAL AND INADEQUATE VENTING ON TURN SIGNAL MIGHT ALLOW MOISTURE INTO THE HEADLAMPS. *RM","document":null,"url":"https://open.wenmarpro.com/bulletins/10037022","components":[{"id":"lighting","name":"Lighting","parent":null},{"id":"headlight","name":"Headlights","parent":"lighting"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"GU7","year_from":2006,"year_to":2007,"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":[]}