Turn ON the ignition with the engine OFF Attempt to start the engine, then release the key to ON (vehicle will not start) Observe the SECURITY telltale (this is the security light), after approximately 10 minutes the telltale will turn OFF. Turn OFF the ignition, and wait 5 seconds. [...]

The Passkey III anti-theft system uses a transponder inside the head of the ignition key. The exciter inside the ignition lock cylinder energizes this transponder when the ignition switch is turned on. The transponder transmits a unique signature to the theft deterrent control module. If the key [...]