Envoy 2WD V8-5.3L VIN M (2005)
Courtesy Lamp: Description and Operation
COURTESY LAMPS
The courtesy lamps include the reading lamps, cargo lamp, and dome lamps. The cargo lamp and dome lamps may be manually turned on or off by
placing the interior lamp switch in the ON or OFF position. When the driver places the dome lamp defeat switch in the OFF position, these courtesy
lamps will be disabled. If a door is opened, the courtesy lamps illuminate. After all the doors have been closed, the courtesy lamps will remain
illuminated approximately 15 seconds after the last door closes. The courtesy lamps will also turn on prior to any door being opened and will remain
illuminated approximately 40 seconds when the driver removes the ignition key. The BCM will immediately turn off the courtesy lamps if a door lock
command is received with all of the doors closed, or if the ignition switch is turned to either the ON or RUN position.
