I have a 2017 Prime Advanced with 43,000 miles. After fully charging, my estimated electric only range dropped to 21 miles with heat on at startup, or 23 miles with heater off at startup. This is right after I replaced the tires with Michelin Defender--and of course this is winter. In the summer, I normally averaged 31 miles of electric only range--and in the winter, 27. Wondering if it's the tires--and if so, will the range get back to normal? Tire pressure is at the recommended level--not over inflated.