See also:

To Help Prevent Corrosion
You can help prevent corrosion from getting started by observing the following: ...

HEATING CONTROLS
For normal heating operation, set the air intake control to the fresh air () position and the air flow control to the floor () position. For faster heating, the air intake control should be set ...

Checking Engine Cooling Fan
The engine cooling fan should come on automatically if the engine coolant temperature is high. ...