The ceiling light has a three-position switch: ON, Door Activated, and OFF. In the Door Activated (center) position, the light comes on when you:

Open either door.

Unlock the driver’s door with the key or remote transmitter.

After both doors are closed tightly, the light dims slightly, then fades out in about 30 seconds.

The ceiling light (with the switch in the center position) comes on when you remove the key from the ignition switch. If you do not open a door, the light stays on, then fades out in about 30 seconds.

If you leave either door open without the key in the ignition switch, the ceiling light will go off after about 15 minutes.