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2012 Switches to gas mode with Battery Charge remaining

19511 Views 52 Replies 22 Participants Last post by  hellsop
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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Did you drive only in EV mode last few month's? If so, the ICE kick's in just to mix the fuel in the tank, but only if you drive like 4-5 month's only on EV. Just a guess
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