The dome lamps will come on when you open a door.

You can also turn the dome lamps on by turning the thumbwheel, located next to the exterior lamps control, all the way up to the top position. In this position, the dome lamps will remain on until they are turned off.

You can press the DOME OVERRIDE button, located below the exterior lamp control. This will override the entry lighting feature, unless you use your keyless entry transmitter (if equipped) to unlock the vehicle.