The front courtesy light includes two lamps with three control pushbuttons: the pushbuttons can be used to turn on the corresponding light directly or in a timed manner, as described below.The two rear courtesy lights are positioned at the side: there is only one bulb which can be switched on or off using the relevant button or through a delay timer as described below.The courtesy light operation is timed according to a logic managed by the body computer:- when any of the doors is opened, the courtesy lights come on for 3 minutes; the timer is reactivated whenever the door is opened;- when all the doors are closed; the lights stay on for a further 10 seconds with the key off. This time is interrupted if the key is moved to key on position: in this case, the courtesy lights are turned off immediately.- When all the doors are closed at key-on the courtesy lights are immediately switched off.- when the key is extracted (or within 2 minutes of the engine being switched off) the courtesy lights come on and there is timed delay of 10 seconds.- all the courtesy lights are turned off at the door lock control;- at the door release command, all the courtesy lights are turned on and a 10 second timer is activated.- If the inertia switch is operated the courtesy lights come on for 15 minutes and then go out.The switching on or off takes place gradually (dimmer) with the cycle lasting 2 seconds.If one or more doors are open, this is shown on the instrument panel display; the warning light remains on until all the vehicle doors and boot lid are properly shut. If a given speed limit is exceeded, this is also signalled by means of a buzzer.