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Key Programming Using Diagnostic Equipment

NOTE: To enter PATS  security access if no programmed IA  keys are available, start a vehicle session using a tear tag or PCM part number. PATS  security access can still be granted even with the ignition off.
  1. Insert the unprogrammed IA  key into the backup transceiver slot.
  2. From the scan tool, enter TOOLBOX. Select Body>Security>PATS Functions and follow the IDS  on-screen instructions to enter PATS  security access.
  3. From the scan tool menu select "Program additional ignition key" or "Ignition Key Programming" and follow the IDS  on-screen instructions.
  4. NOTE: The engine does not start until there are at least 2 keys programmed.

    The engine should now start with the new IA  key.

  5. If it is desired to program additional IA  key, insert the additional IA  key into the backup transceiver slot and repeat Step  3 for the additional key that needs to be programmed.
    • A total of 4 IA  keys can be programmed
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