A vehicle’s heater direction control switch is positioned on the heater control panel and situated in the dashboard of a vehicle. Its function is to adjust the direction of the heating in the vehicle.

The heater inside the vehicle uses the heat from the engine, which is converted in to hot air and blown in to the vehicle’s passenger compartment.

When heat is built up in the engine, it’s transferred to the coolant, which is passed to the exhaust and radiator to protect the engine from overheating. The heater is attached to the radiator. When the passenger in the vehicle turns the dials on the controls the heat from the heater’s core is transferred to the passenger compartment of the vehicle. The driver can then use the heater direction control switch to choose where the heat is distributed in the vehicle.

It is important to make sure your vehicle’s heating system is working correctly, as a damaged heating system could indicate that the vehicle’s engine cooling system is also not working. If you notice the vehicle’s heating system is not working, then it’s important to get it checked as soon as possible to prevent engine damage.