I have a 2017 Volt. It's summertime, and my electric miles reading has been 65+, but recently it started reading 80+. I believe the miles I actually get is about the same, maybe 55 miles in the Denver area. Anybody have the same issue or an explanation?
If you do not fully charge the battery when you charge your Volt the estimation routine can get confused. Try waiting until the battery is fully depleted or mostly depleted and then fully charging and see if that corrects the issue.
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