{"nhtsa_id":10183965,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-12-08","date":"2020-11-10","document_id":"ITB20-025","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES","mfr_system":null,"summary":"DTC B2724-23 AND/OR C1B56-04 STORED, AND/OR RAB ERROR MESSAGE OR WARNING IF YOU CONFIRM One or both of the following DTCs are stored: • B2724-23 (SONAR CONTROL UNIT - SONAR ECU INTERNAL FAILURE [UNDER VOLTAGE]) • C1B56-04 (SONAR CIRCUIT - SYSTEM INTERNAL MALFUNCTION) NOTE: A RAB warning may appear in the vehicle information display. ACTION Reprogram the Sonar Control Unit, if applicable.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183965-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183965-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10183965","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":["B2724","C1B56"],"topics":[],"vehicles":[{"make":"INFINITI","model":"QX50","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_infiniti_qx50"]}],"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":[]}