{"nhtsa_id":10198654,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-07-02","date":"2021-06-25","document_id":"SSM 49911","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT","mfr_system":null,"summary":"Some 2021 Broncos equipped with exterior zone lighting may experience an intermittent single hazard lamp flash when hazards are turned off. This condition is due to a software issue within the vehicles body control module (BCM). This fault is induced anytime a customer activates then deactivates exterior zone lighting lamps while the engine is OFF. This may generate a single hazard lamp flash when the engine is shut off or during an engine auto-start-stop event. Inform customers that this condition can be temporarily corrected by activating then deactivating the exterior zone lighting feature while the engine is running. Engineering is currently working on new software to correct the condition that is expected to be available in October 2021. Let the customer know they can continue to drive the vehicle and schedule a follow-up appointment for repair in November 2021. Monitor OASIS for updates.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198654-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198654-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10198654","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"BRONCO","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_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":[]}