See also:

Daytime running light system (Canada only)
The daytime running lights automatically illuminate when the engine is started with the parking brake released. The daytime running lights operate with the headlight switch in the OFF position ...

If your vehicle overheats
If your vehicle is overheating (indicated by an extremely high temperature gauge reading) or if you feel a lack of engine power, detect abnormal noise, etc., take the following steps. WARNING: ...

ON position
When the switch is in the ON position 1 , the ceiling light will illuminate. ...