Why do many drivers press two power window buttons at the same time and what does this hidden feature offer?

Often, car owners are faced with the need to close their car windows when the ignition is already off, and standard methods of controlling power windows are powerless. Simply pressing the button will not lead to the desired result, and to solve the problem, you need to reinsert the key into the lock and turn on the ignition.

A similar situation may arise for passengers left in a driverless car, for example in the event of