{"nhtsa_id":10233688,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-04-04","date":"2023-03-07","document_id":"SSM 51415","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Customers who neutral (4-wheel flat) tow a 2021-2022 Bronco equipped with a 2.7L engine or a 2022-2023 Bronco Raptor may report an inconsistent brake assist when a supplemental braking system has been installed. This may result from supplemental brake system set-up that does not account for the vehicles anti-lock brake (ABS) module entering sleep mode after a pre-determined period of time following vehicle shut-down. This functionality was necessary to prevent a battery drain from occurring. Enhanced software has been developed to keep the ABS module in a consistent sleep state when the vehicle enters neutral tow mode. For vehicles that meet this criterion, reprogram the ABS module using the latest software level of the Ford Diagnosis and Repair System (FDRS) scan tool. For claiming, use casual part 2C219.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10233688-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10233688-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10233688","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"BRONCO","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_ford_bronco","2022_ford_bronco","2023_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":[]}