{"nhtsa_id":10204047,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-12-07","date":"2021-11-22","document_id":"21P22","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Certain 2021 Model Year Mustang Mach-E Vehicles Software Calibration Update In some of the affected vehicles, while driving downhill for an extended distance, the vehicle may experience a loss of propulsion. If this occurs a “Stop Safely Now” message will appear on the instrument cluster display along with audible warning chimes. The customer will not be able to accelerate until the vehicle is turned off and restarted, returning the vehicle to normal driving mode. The vehicle may also try going into park causing a ratchet noise while the vehicle is in motion and in some cases could damage the parking pawl. Along with this update, there are several additional updates for customer satisfaction included in this software update. This will include updates for no start, handling performance, ability for over the air updates, improved range in cold weather, DC fast charge total time improvements, display range accuracy, e-latch door robustness, and phone as a key detection.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10204047-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10204047-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10204047","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"MUSTANG MACH E","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_ford_mustang-mach-e"]}],"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":[]}