{"vehicle":{"id":"2027_mazda_cx-50","year":2027,"make":"Mazda","model":"CX-50"},"code":"U0198","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":1,"bulletins":[{"nhtsa_id":11037632,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-10-01","date":"2026-09-18","document_id":"SA-012-26d","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"DESCRIPTION Some customers may experience a message \"TCU Malfunction. Have the Vehicle Inspected\" in the instrument cluster. Additional symptoms that may occur: Connected Vehicle One Time Passcode (OTP) may fail. Connected Vehicle Remote functions may fail. The following DTC's may be stored: B1252:87-8B:TCU - COMMUNICATION ERROR WITH CONNECTIVITY MASTER UNIT (CMU) U0198:00-03:CMU - COMMUNICATION ERROR WITH EMERGENCY CALL UNIT/TELEMATICS COMMUNICATION UNIT REPAIR PROCEDURE 1. Verify the concern. 2. Check if any of the following DTCs are stored: B1252:87-8B:TCU - COMMUNICATION ERROR WITH CONNECTIVITY MASTER UNIT (CMU) U0198:00-03:CMU - COMMUNICATION ERROR WITH EMERGENCY CALL UNIT/TELEMATICS COMMUNICATION UNIT Are the following DTCs stored? YES: Proceed to next step. NO: This service information does not apply. Continue troubleshooting using MGSS.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037632-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037632-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11037632"}],"url":"https://open.wenmarpro.com/makes/mazda/cx-50/2027/bulletins?code=U0198"},"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/cx-50/2027/codes/U0198","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."]}