Use, Care & Maintenance - Gen 1 Chevy Volt
My 2013 Volt usually shows a 'fully charged' level of 40-46 miles. In warmer weather it gets to 45 or 46; when it's cold, in the upper 30s to low 40s.
This morning, after 6 days of 90+ degrees weather, got in my car (outside temp was low 60s) and it showed a range of 60, which is far higher...