{"nhtsa_id":10028668,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-05-14","date":"2009-05-11","document_id":"TB-91-16-177","mfr_campaign":null,"replaces":"SB-91-16-177A","component":"SEATS:FRONT ASSEMBLY:HEAD RESTRAINT","mfr_system":null,"summary":"MERCEDES: ACTIVE HEAD RESTRAINTS ACTIVATE FOR NO REASON. THIS MAY BE CAUSED BY DAMAGE TO THE SEAT WIRING HARNESS CAUSING A SHORT CIRCUIT. MODELS 164 AND 251. MODEL YEARS UNKNOWN. *PE UPDATED 9/18/09. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10028668","components":[{"id":"seats","name":"Seats","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES BENZ","model":"R320","year_from":2005,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"R500","year_from":2005,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"R63","year_from":2005,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"R350","year_from":2005,"year_to":2009,"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":[]}