{"vehicle":{"id":"2001_western-star_4800","year":2001,"make":"Western Star","model":"4800"},"as_of":"2026-10-19","counts":{"count":3,"by_type":[{"id":"service_bulletin","name":"Service bulletin","count":3}],"components":[{"id":"electrical","name":"Electrical system","count":1},{"id":"engine","name":"Engine","count":1},{"id":"equipment","name":"Equipment and accessories","count":1},{"id":"fuel-system","name":"Fuel system","count":1},{"id":"wiring","name":"Wiring and fuses","count":1}],"codes":[],"topics":[]},"bulletins":[{"nhtsa_id":10151512,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-10","date":"2018-07-23","document_id":"sbw0014","mfr_campaign":null,"component":"EQUIPMENT","summary":"Operating Hours for the Customer Assistance Center","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10151512-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10151512-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10151512"},{"nhtsa_id":10056548,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2014-12-24","date":"2015-03-02","document_id":"SB-54-58","mfr_campaign":null,"component":"ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS","summary":"WESTERN STAR: INSTRUCTIONS PROVIDED TO HELP REDUCE VIBRATION ON POWER DISTRIBUTION MODULES (PDM), TO PREVENT CRACKING OF FUSES ON HORIZONTALLY MOUNTED POWERTRAIN. *PE UPDATED 03/02/15*LJ","document":null,"url":"https://open.wenmarpro.com/bulletins/10056548"},{"nhtsa_id":10044353,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-06-14","date":"2012-05-01","document_id":"SB-49-12","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL","summary":"WESTERN STAR: AROUND THE DIESEL EXHAUST FLUID (DEF) AN EXCESSIVE AMOUNT OF CRYSTAL OR POWDER BUILT UP INDICATES A LEAK CAUSED BY EVAPORATION OF DEF EXPOSED TO AIR AND/OR DAMPNESS. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10044353"}],"next_cursor":null,"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":[]}