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February 4, 2021 Service bulletin

Customer Satisfaction Program

Chevrolet technical service bulletin N202307990 launc for 2016-2018 Chevrolet Volt.

Bulletin number
N202307990 launc
Component
Electrical system
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.

Owners of these vehicles have filed 481 complaints in the electrical category.

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