Got my 2017 Prime Advanced the first of May and quickly worked my way up to 36.5 miles when fully charged. Recently, my full charge mileage has dropped to about 31.5 miles. Weather isn't as hot as summer but still 60's at night and 80-84 days. Should I be concerned?? Thanks! Posted via the PriusChat mobile app.
Wait until winter arrives. Efficiency will be outstanding, but not the same as during the warm months.
Any changes in driving speed? More hard stops? More hard starts? Different route with more hills? Tire pressure OK?
try charging up, and driving 30mph back roads, no a/c, until the engine comes on. let us know how many miles you went.