Using Two Programmed Keys
NOTE:^ This procedure only works if two or more programmed ignition keys are available. If two keys are not available. For additional information, refer to Key Programming Using Diagnostic Equipment.
^ PID SPARE KY must be enabled for this procedure to operate. If this PID is not enabled, refer to Anti-Theft Security Access then select SPARE KY Programming Switch; Enabled.
^ If the programming procedure is successful, the new key(s) will start the vehicle and the anti-theft indicator will illuminate for approximately three seconds.
^ If the programming procedure is not successful, the new key(s) will not start the engine. The Powertrain Control Module (PCM) disables the engine for 20 seconds every time DTC B1601 is set. The ignition must remain in the RUN position for at least 20 seconds before an attempt is made to start the engine with any encoded ignition key. Check the PCM PID ANTI SCAN for this unprogrammed key time out status. The anti-theft indicator will flash. If the programming procedure was not successful leave the ignition switch in the RUN position for at least 30 seconds, repeat the Key Programming procedure from Step 1. If the failure repeats, refer to Diagnostic and Testing to review DTCs and carry out Pinpoint Tests. Passive Anti-Theft System (PATS)
^ A maximum of eight ignition keys can be programmed to a Passive Anti-theft System (PATS) equipped vehicle.
^ If the steps are not carried out as outlined, the programming procedure will end.
^ Ignition keys must have correct mechanical key cut for the vehicle and must be a PATS encoded key.
1. Insert first programmed key into ignition lock cylinder and turn the ignition switch from the RUN position to the OFF position (maintain ignition switch in the RUN position for one second).
2. Turn ignition switch to the OFF position and remove the first key from the ignition lock cylinder.
3. Within five seconds of turning the ignition switch to the OFF position, insert the second programmed ignition key into the ignition lock cylinder and turn the ignition switch from the OFF position to the RUN position (maintain the ignition switch in the RUN position for one second).
4. Turn the ignition switch to the OFF position and remove the second key from the ignition lock cylinder.
5. Within ten seconds of turning the ignition switch to the OFF position, insert the unprogrammed ignition key (new key) into the ignition lock cylinder and turn the ignition switch from the OFF position to the RUN position (maintain the ignition switch in the RUN position for one second).
6. If it is desired to program additional key(s), repeat the applicable key programming procedure from step 1.