{"nhtsa_id":10178237,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-08-09","date":"2020-07-20","document_id":"NTB20-053","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; EQUIPMENT","mfr_system":null,"summary":"2020 TITAN 4WD; VIBRATION WHILE DRIVING ABOVE 3,500 RPM IF YOU CONFIRM A vibration is present while driving with the engine speed above 3,500 RPM. ACTION 1. Diagnose the fan coupler. 2. Install the fan coupler kit listed in PARTS INFORMATION, if applicable. The fan coupler kit includes a new fan coupler, fan pulley and fan bracket.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10178237-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10178237-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10178237","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"NISSAN","model":"TITAN","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_nissan_titan"]}],"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":[]}