I'm having problems to defrost my rear windshield since it was snowing and raining right now. I've got the side/rear defroster ON and also the Front/foot ON in a decent volume of warm air flow. As I turn on my rear wipers, that area is OK and clear but the rest of the back windshield ( where those heater lines) are still wet. Shouldn't that be cleared and dry as well? What am I doing wrong here? My HRV is not even a week old, it's the 2020 model. I don't have that kind of a problem with my 2016 CRV. Help! I'm still getting to know this car.