HeaterHeater  - For pleasant driving - Mitsubishi Lancer Owner's Manual - Mitsubishi Lancer

The heater can only be used while the engine is running.

See also:

Capacities
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Interrupt display screen (when the ignition switch is “ON”)
Warning display When there is information to be announced, such as a system fault, a sound is emitted and the information screen switches to the warning display screen. Refer to the warning list a ...

Engine oil level warning display
When the ignition switch is in the “ON” position, if it is suspected that the engine oil level has increased excessively, the warning display is displayed on the information screen in the mu ...