If the voltage drops, the vehicle may lose propulsion, increasing the risk of crash.

Hybrid Propulsion System

Summary

General Motors LLC (GM) is recalling certain 2013 Chevrolet Volt vehicles. An update to the Hybrid Powertrain Control Module 2 (HPCM2) may have disabled the cell balancing function causing a low-voltage condition.

Actions

GM will notify owners, and dealers will reprogram the HPCM2, free of charge. The recall began July 24, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 18215.

Documents (18)

• ISSUED Owner Notification Letter(Part 577)
• Manufacturer Notices(to Dealers,etc) - Date: July 24, 2018 Subject: 18215 01 – Safety Recall Software Update Error Affecting Battery Cell Voltage Balancing Customer Letter Added
• Recall Acknowledgement
• Recall 573 Report-Amendment 3
• Recall 573 Report-Amendment 1
• ISSUED Owner Notification Letter(Part 577)
• Safety Bulletin - Reference Number: N172130460 Release Date: July 2018 Revision: 01
• Recall 573 Report-Amendment 2
• Safety Bulletin
• Manufacturer Notices(to Dealers,etc) - Date: June 28, 2018 Subject: 18215 - Safety Recall Software Update Error Affecting Battery Cell Voltage Balancing
• Recall Quarterly Report #2, 2018-4
• Defect Notice 573 Report
• Recall Quarterly Report #3, 2019-1
• Frequently Asked Questions (FAQs) for Safety Recall 18215 Loss of Propulsion Due to Low Cell Voltage
• Recall Quarterly Report #1, 2018-3
• Recall Quarterly Report #4, 2019-2
• Recall Quarterly Report #6, 2019-4
• Recall Quarterly Report #5, 2019-3

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