Service Update N232401570 Cell Monitoring Unit Offline

GM is releasing an OTA software update for the following vehicles to correct a condition in which the Battery Energy Control Module will not exit "commissioning" (start-up) because a cell monitoring unit is offline.

This update requires reprogramming of the Battery Energy Control Module with updated calibrations.  This update will be released via an OTA update and can also be performed by your dealer if its in for service. 

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Ken Yannacci, EV Outdoors

Ken Yannacci, EV Outdoors

I'm an EV market analyst with over a decade of real-world EV ownership experience, including 8 EVs across multiple brands. My analysis and commentary have been quoted by The Wall Street Journal. EV Outdoors covers ownership, towing, road trips, market trends, and the realities manufacturers leave out of the brochure.

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