Using Two Programmed Keys

SPECIAL TOOL(S)

NOTE:
^ This procedure only works if two or more programmed ignition keys are available, and it is desired to program additional key(s). If two keys are not available, follow the procedure in Key Programming Using Diagnostic Equipment. Using Diagnostic Equipment
^ PID SPARE__ KY must be enabled for this procedure to operate. If this PID is not enabled, follow the security access procedure in Anti-Theft Security Access and select SPARE KEY PROGRAMMING SWITCH: ENABLED.
^ If the programming procedure is successful, the new key(s) will start the vehicle and the THEFT INDICATOR will illuminate for approximately three seconds and then it will turn off (prove-out).
^ If the programming procedure is not successful, the new key(s) will not start the vehicle and the THEFT INDICATOR will flash. If the programming procedure was not successful leave the ignition switch in the RUN position for at least 30 seconds then repeat the key programming procedure from Step 1. If the failure repeats, refer to Diagnosis and Testing to review DTCs and carry out pinpoint tests as necessary.
^ A maximum of eight ignition keys can be programmed to a Passive Anti-theft System (PATS) equipped vehicle. If more are needed, refer to Unlimited Key Mode in Key Programming. Switch State Control
^ If the steps are not carried out as described, the programming procedure will end.
^ Ignition keys must have correct mechanical key cut for the vehicle and must be the correct PATS key part number for this model year.
^ 2002 model year and earlier are not equivalent keys.
^ If the vehicle is in unlimited key mode, this spare programming procedure still functions. Any two keys that can start the vehicle may be used to program-in an additional unlimited key.

1. Insert the first programmed ignition key into the ignition lock cylinder and turn the ignition switch from OFF to RUN (maintain the ignition switch in RUN for 3 seconds but no more than 10 seconds).
2. Turn the ignition switch to OFF and remove the first key from the ignition lock cylinder.
3. Within 10 seconds of turning the ignition switch to OFF, insert the second programmed ignition key into the ignition lock cylinder and turn the ignition switch from OFF to RUN (maintain the ignition switch in RUN for 3 seconds but no more than 10 seconds).
4. Turn the ignition switch to OFF and remove the second key from the ignition lock cylinder.
5. Within 20 seconds of turning the ignition lock cylinder to OFF, insert the unprogrammed ignition key (new key) into the ignition lock cylinder and turn the ignition switch from OFF to RUN (attempt to start the vehicle).
6. If it is desired to program additional key(s), repeat the key programming procedure from Step 1.