2019 Chevy Volt, Voltech with 7.2 kW optional Charger
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GM has released a bulletin update for the Advanced Diagnostic Software on the Bolt informing owners that there is an available update to resolve issues encountered in the previous software and enhance its data retention. 2020 and 2021 model year Bolts will receive the update when it becomes available.
Program # N222369400 and N222369401
Program # N222369400 and N222369401
Program Title:
Advanced Diagnostic Software (ADS) Improvements
Program Description:
Certain 2017-2019 model year Chevrolet Bolt EV vehicles are to receive a software update to improve the original Advanced Diagnostic Software. This software update addresses customer reports of difficulty connecting to a charger (2019 MY only), reduces false diagnostic activation in certain vehicles under certain driving conditions, and prevents diagnostic data loss.
Repair Description:
Dealers are to reprogram the Hybrid Powertrain Control Module 2 (HPCM2).