2012 Switches to gas mode with Battery Charge remaining

19333 Views 52 Replies 22 Participants Last post by hellsop, 20 d ago

Paul*

Discussion Starter · Nov 5, 2018

I have a 2012 Chevy volt with 140,000 miles. It has not had any issues until now. The car will switch to gas mode while there is still plenty of charge remaining in the battery (as much as 80%). The temperature is well above freezing. Stopping, shutting of the car off and restarting resolves the issue. I took it to the dealer. however, the computer was not writing any errors codes.

Any ideas what could be causing this?

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· #2 · Nov 5, 2018

If the battery can't sustain the required amps, it could switch to ice
You should have some codes recorded, scan to discover them

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· #17 · Jan 18, 2019

Just get a BT obd reader and monitor min / max / AVG cell voltage, there is a pid for that. Mygreenvolt can monitor it

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· #20 · Jan 18, 2019

Ice also warms up the hv battery, if running

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· #22 · Jan 18, 2019

I guess you are right.

Ice coolant only warms the cabin

But the same chiller cools both the cabin and the battery, but I think there is a heat exchanger involved somewhere, so the systems remain separated

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