Passive Anti-Theft System (PATS) Parameter Reset

SPECIAL TOOL DESCRIPTION

Vehicle Communication Module (VCM) and Integrated Diagnostic System
(IDS) software with appropriate hardware, or equivalent scan tool

NOTE: A minimum of 2 Passive Anti-Theft System (PATS) keys must be programmed into the Instrument Cluster (IC) to complete this procedure and allow the vehicle to start.

Turn the key from the OFF position to the ON position.
From the scan tool, follow the on-screen instructions to ENTER SECURITY ACCESS. For additional information, refer to ANTI-THEFT SECURITY ACCESS in this article.
From the scan tool, select: Parameter Reset and follow the on-screen instructions.
NOTE: If only the PCM was replaced, go to Step 9.
NOTE: If the IC was replaced follow Steps 4- 9. All vehicle keys are erased during the parameter reset procedure. Verify at least 2 vehicle keys are available prior to carrying out the PATS parameter reset.

From the scan tool, select: Ignition Key Code Erase and follow the on-screen instructions.
Turn the key to the OFF position and disconnect the scan tool.
Turn the key to the ON position for 6 seconds.
Turn the key to the OFF position and remove the key.
Insert the second PATS key into the ignition lock cylinder and turn the key to the ON position for 6 seconds.
Both keys now start the vehicle.
If more keys are required to be programmed, refer to KEY PROGRAMMING USING TWO PROGRAMMED KEYS in this article.
Program the Remote Keyless Entry (RKE) transmitter portion of the Integrated Keyhead Transmitter (IKT) PATS keys. For additional information, refer to Remote Keyless Entry (RKE) Transmitter Programming .