Heater/Air conditioningHeater/Air conditioning  - For pleasant driving - Mitsubishi ASX Owner's Manual - Mitsubishi ASX

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

See also:

Stopping the engine
1. Bring the vehicle to a complete stop. 2. Fully engage the parking brake while depressing the brake pedal. 3. For vehicles equipped with M/T, turn the ignition switch to the “LOCK” position ...

High-beam indication lamp
This indication lamp illuminates when the high-beam is used. ...

Warning display list (when the ignition switch is “OFF”)
...