Courtesy Lamp: Description and Operation

COURTESY LAMP CONTROL
The body controller has direct control over all of the vehicle's courtesy lamps. The body computer will illuminate the courtesy lamps under any of the following conditions:
1. Any door ajar and courtesy lamp switch on the headlamp switch is not in the dome off position.
2. The courtesy lamp switch on the headlamp switch is in the dome on position.
3. A Remote Keyless entry unlock message is received.
4. Driver door unlocked with key (with VTSS only)