I have a brand new T8 Recharge and when I went to turn on the heat for the first time, I was only getting cool air. No heat. The vehicle has 9K mileage and it's the first time I've used the heater since new. Took to dealer and turns out that they needed to replace the HVCH (High Voltage Coolant Heater). Unbelievable considering it's brand new. Very disappointing and hoping not a sign of things to come. Anyway, dealer fixed promptly and I now have heat.