{"nhtsa_id":10129952,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-03-12","date":"2018-01-12","document_id":"RSB 503","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH","mfr_system":null,"summary":"Newmar Corporation has decided that a defect relating to motor vehicle safety exists in specific motorhomes built on Freightliner Chassis. On certain motorhomes, if the headlight high beams are activated, only the high beam bulbs illuminate. The intention of the high beam function on the affected coaches is to have both the high beam and low beam bulbs illuminate together.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10129952-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10129952-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10129952","components":[{"id":"lighting","name":"Lighting","parent":null},{"id":"headlight","name":"Headlights","parent":"lighting"}],"codes":[],"topics":[],"vehicles":[{"make":"NEWMAR","model":"LONDON AIRE","year_from":2017,"year_to":2017,"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":[]}