{"vehicle":{"id":"2021_mazda_mazda2","year":2021,"make":"Mazda","model":"Mazda2"},"code":"U1A4B","generic":false,"description":null,"bulletins":{"as_of":"2026-10-19","count":1,"bulletins":[{"nhtsa_id":10225783,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-11-04","date":"2022-10-11","document_id":"09-041-22","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"If the right-side Blind Spot Monitoring (BSM) control module is replaced for any reason, it is also necessary to replace the left-side BSM control module in order to complete the radar aiming procedure. If the right-side BSM control module is replaced alone, \"Automatic Configuration\" and \"BSM Radar Aiming\" cannot be completed due to a programming error in the module. Other possible symptoms that may be found if the right-side BSM module is replaced alone: * BSM aiming fails * \"BSM OFF\" indicator ON * Center Display warning message * BSM failsafe (No operation) * DTC U3000:54 stored in memory * DTC U1A4B:54 stored in memory (CX-3, MX-5 only)","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10225783-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10225783-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10225783"}],"url":"https://open.wenmarpro.com/makes/mazda/mazda2/2021/bulletins?code=U1A4B"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/mazda/mazda2/2021/codes/U1A4B","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}