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

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

See also:

Door ajar warning display screen (when the ignition switch is “ON”)
If any of the doors or the rear hatch is not completely closed, this displays the open door or rear hatch. If the vehicle speed exceeds approximately 8 km/h (5 mph) while a door is ajar, a buzz ...

Parking
To park the vehicle, fully engage the parking brake, and then move the gearshift lever to 1st or “R” (Reverse) position for vehicles equipped with M/T, or set the selector lever (CVT) or gears ...

Information screen display
Brake warning display This warning is displayed if you drive with the parking brake still applied. The warning lamp in the instrument cluster only illuminates when the parking brake is applied. ...