Chevrolet 2001 Monte Carlo Owner's Manual page 87

Trunk Release Sensor TrapAlert
(If Equipped)
Your vehicle may have a sensor located on the underside
of the filler panel inside the trunk.
t
System The sensor is designed to open the trunk automatically.
If the sensor detects motion and a difference in
temperature in the trunk, the sensor will sound the horn
if the ignition is in OFF. There will be three short chirps
and a pause repeated for up to two minutes. After one
minute, the trunk latch will release. If the ignition is not
in OFF, the trunk latch will not release automatically
and the horn will not sound.
To cancel the horn alarm and automatically release
the trunk lid before two minutes are up, turn the
ignition to ON.
Do not cover the sensor with items you put into the
trunk or with add
sensor's field of view is blocked, it will not detect
motion and will not function properly.
Be sure to secure items in your trunk so that they won't
move around and cause the trunk to open.
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on accessory equipment. If the
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