{"nhtsa_id":10199520,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-08-02","date":"2021-07-01","document_id":"TSB 21-2205","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Some 2021 F-150 vehicles equipped with a 5.0L engine, built on or before 23-Apr-2021, and having charging system diagnostics performed in the Workshop Manual (WSM) may experience the generator voltage desired (GENVDSD) parameter identification (PID) missing from the powertrain control module (PCM) PID list in the Ford Diagnosis and Repair System (FDRS). This may be due to a software parameter in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10199520-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10199520-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10199520","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-150","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_ford_f-150"]}],"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":[]}