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- Sun Oct 28, 2018 3:27 pm
- Forum: General Chevy Volt Forum
- Topic: 2017 Volt “service high voltage charging system”
- Replies: 0
- Views: 277
on a trip to the outer banks when the message “service high voltage charging system” popped up and the check engine light came on. I looked it up and seemed likely related to the high voltage battery cooling system, so I checked and found no coolant visible in that reservoir. Also, we did have very ...