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:

Operation of the Dead Lock System
In a vehicle that has a Dead Lock System, it is possible to set the Dead Lock System using the remote controller. (Refer to “Dead Lock System”.) ...

Electrical system
NOTE • For vehicles equipped with the Auto Stop & Go (AS&G) system, contact a MITSUBISHI MOTORS Authorized Service Point when replacing the battery. ...

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 ...