{"nhtsa_id":10135166,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-07","date":"2018-02-26","document_id":"18049","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"18049 - Service Update. Certain vehicles may have a multi-use relay assembly that is not fully seated in the underhood buss electrical center. This can cause an intermittent loss of tail lamps. Dealers are to remove, inspect, and if necessary, replace the multi-use relay assembly (tail lamp/park lamp).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10135166-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10135166-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10135166","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"XTS","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_cadillac_xts"]}],"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":[]}