Heater doesn't work floor or left of the driver

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your Odyssey's heater. When heat is slow to warm and only blows from certain vents, this could point to a couple of issues. The mode door actuators, which control airflow direction, may not be functioning properly, especially for the floor or left side. These small motors can wear out or become stuck, restricting airflow to specific areas. Another possibility is a partially clogged heater core, which could explain the slow warming. Flushing the heater core might help restore proper heat distribution. Also, ensure that the coolant level is adequate, as low coolant can lead to inconsistent heating. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!