{"nhtsa_id":11022153,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-08-26","date":"2025-08-25","document_id":"SSM 54164","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER; ELECTRICAL SYSTEM; EXTERIOR LIGHTING","mfr_system":null,"summary":"Some 2025 Bronco vehicles equipped with a 7 speaker audio system (minor feature code IDBAL) may exhibit an intermittent no audio condition and/or speaker fault with diagnostic trouble codes (DTCs) B128A:01, B128A:11, B128A:12, B128A:13, B1288:11, B1288:12 and/or B1238:17 stored in the audio control module (ACM). To confirm a vehicle is built with a certain minor feature code, review the build information by clicking \"Additional Information\" under Vehicle ID Tab > Vehicle Information, or double-clicking the vehicle identification number (VIN) in the upper left corner on Professional Technician System (PTS). To correct this condition, disconnect the negative battery cable and wait two minutes before reconnecting. If the no audio condition is not resolved, refer to the Workshop Manual (WSM), Section 415-00 for normal diagnostics outside of this article. If the no audio condition is resolved and the DTCs remain, this concern may be due to the ACM software. Replacement of the ACM and/or speakers will not resolve this condition. Inform the customers that they can continue to drive the vehicle and engineering","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11022153-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11022153-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11022153","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"lighting","name":"Lighting","parent":null}],"codes":["B1238","B1288","B128A"],"topics":[],"vehicles":[{"make":"FORD","model":"BRONCO","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_ford_bronco"]}],"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":[]}