{"nhtsa_id":10180377,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-10-01","date":"2020-09-11","document_id":"TechTalk7673","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING","mfr_system":null,"summary":"Tech talk discussion on 2021 M2 BHM/CHM issue. Left tail light goes out when brake lights come on.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10180377-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10180377-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10180377","components":[{"id":"lighting","name":"Lighting","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"BUSINESS CLASS M2","year_from":2021,"year_to":2021,"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":[]}