{"nhtsa_id":11000675,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-06-03","date":"2024-05-21","document_id":"09-028-24","mfr_campaign":null,"replaces":null,"component":"STRUCTURE:BODY; ELECTRICAL SYSTEM","mfr_system":"instrument cluster","summary":"Some customers may experience a warning message for the approaching vehicle audible system (AVAS) right after the ignition is turned on (POWER ON) while a loud noise, such as a horn, occurs close to the vehicle. Upon inspection, DTC B1A03:2B [ISB_AMP] (AVAS device circuit malfunction) is stored in memory. (AVAS Malfunction, Pedestrians May Not Hear This Vehicle Approach, Drive Safely, Have the Vehicle Inspected) This may be caused by an internal initial diagnosis in the notification and warning amplifier detecting a false malfunction under this particular situation. To eliminate this concern, the control software of the notification and warning amplifier has been modified.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11000675-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11000675-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11000675","components":[{"id":"structure-body","name":"Body and frame","parent":null},{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B1A03"],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-90","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_mazda_cx-90"]}],"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":[]}