NHTSA Complaint #11456769 — 2020 KIA TELLURIDE

The 2020 Kia Telluride has a major, yet well-known design flaw regarding the heater block/heater core causing the blowing heat to drop when the car is at idle or moving at low RPMs. As someone living in Minnesota, it's absolutely absurd that a car can be considered "operating as designed" when the car literally has no heat during traffic or at idle - this has the potential to cause occupants serious injury or even death while waiting for assistance in the event of a flat tire or spinout during cold months. We noticed the issue in December 2021 but the dealer was so backed up with Kias that it couldn't get in for service until February 1st. The car was taken to the dealer on 2/1, 2/15, and 2/25 - the thermostat was replaced but I was told at the last visit that there is nothing else that can be done. The tech at the dealer agreed with the problem but was told by the Kia Techline that everything was within the specifications of the design. How can Kia ethically (and knowingly) sell a vehicle that doesn't provide heat in a state that is regularly below zero (and even below freezing) for over half of the year?