{"nhtsa_id":10222198,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-30","date":"2022-09-27","document_id":"N222369401-01","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU)","mfr_system":null,"summary":"Certain vehicles are to receive a software update to improve the original Advanced Diagnostic Software. This software update reduces false diagnostic activation in certain vehicles under certain driving conditions, and prevents diagnostic data loss. Dealers are to reprogram the Hybrid Powertrain Control Module 2 (HPCM2).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10222198-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10222198-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10222198","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"hybrid-ev","name":"Hybrid and electric drive","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"BOLT EUV","year_from":2022,"year_to":2023,"match":"exact","vehicle_ids":["2022_chevrolet_bolt-euv","2023_chevrolet_bolt-euv"]},{"make":"CHEVROLET","model":"BOLT EV","year_from":2020,"year_to":2023,"match":"exact","vehicle_ids":["2020_chevrolet_bolt-ev","2021_chevrolet_bolt-ev","2022_chevrolet_bolt-ev","2023_chevrolet_bolt-ev"]}],"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":[]}