CTS V8-5.7L VIN P (2004)
Trunk/Liftgate Sensor/Switch (For Alarm): Description and Operation
REAR COMPARTMENT TAMPER SWITCH
The rear compartment lid is equipped with a lock cylinder tamper switch. Any forced movement of the lock cylinder activates the tamper switch. Both or
either of the following actions activate the lock cylinder tamper switch:
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Rotation caused by forced entry
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In and out movement of the lock cylinder caused by forced entry