{"nhtsa_id":10191184,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-05-04","date":"2021-04-09","document_id":"21B19","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"In all of the affected vehicles, the AWD module was assembled with an incorrect transistor that controls the transition between AWD and 2WD. When this transistor fails the vehicle will remain in either AWD or 2WD and not transition between the drive states. This can cause the wrench light to illuminate in the instrument cluster.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10191184-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10191184-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10191184","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"BRONCO SPORT","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_ford_bronco-sport"]},{"make":"FORD","model":"ESCAPE","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_ford_escape"]},{"make":"LINCOLN","model":"CORSAIR","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_lincoln_corsair"]}],"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":[]}