This happens whenever the weather gets too cold the brake Dash light stays on but not a problem it should go away after you drive for like 10 min depending on how cold it is
Blows hot or cold air (as selected) through the ductwork behind the dash.
If you are saying the heater is blowing out cold air you need to change the heater core which is located inside the dash
There is a divertor controller under the dash that controls between heat and cold. Sometime the wireing harness works loose.
The evaporator (What makes the A/C cold) is loacated deep into the dash or instrument panel. The whole dash has to come out to get to it. It is such a big job that even experienced mechanics will cringe at it.
A shot of Bourbon with some warm water, a dash of honey and a slice of lemon.
There is a door behind the dash that changes cold and hot air flows. The door is probable stuck or the control circuit has failed causing the hot air to blow on cold.
Check for vacuum leak either under hood or under dash Check for bad vacuum actuator under dash Defrost is the default setting
The first thing that you need to check will be to see if the controller in the dash is working the a/c and heater doors under the dash................
A bad relay switch could be the culprit if dash lights remain on after engine starts in a Toyota. Cold weather can also cause these lights to stay on after the engine starts.
The a/c - heater controller is out...........
The snowfake usually appears when the weather is really cold, under 4 degrees. As the focus is a European car it is meant to warn the driver that it is cold and the roads could be icy. It also turns red when it is extremely cold.