{"nhtsa_id":10207742,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-02-07","date":"2021-02-04","document_id":"N202307990 launc","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Customer Satisfaction Program. Certain vehicles may have a condition related to the high voltage battery which could gradually lose the ability to maintain voltage. If battery concerns are not addressed, the vehicle could enter a reduced propulsion mode while driving, or lose propulsion, or it may not start. Dealers are to update the Hybrid Powertrain Control Module (HPCM2). This software update is intended to increase the amount of warning time provided.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10207742-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10207742-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10207742","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"VOLT","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_chevrolet_volt","2017_chevrolet_volt","2018_chevrolet_volt"]}],"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":[]}