Chevrolet 2001 Impala, Owner'S Manual

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Trunk Release Sensor TrapAlert
t System
(If Equipped)
Your vehicle may have a sensor located on the underside
of the filler panel inside the trunk.
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
-
on accessory equipment. If the
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.