Passive Anti-Theft System (PATS)

Passive Anti-Theft System (PATS) Parameter Reset





NOTE: Passive Anti-Theft System (PATS) vehicles and non-PATS vehicles have parameters in the Instrument Panel Cluster (IPC) and the PCM and they must be reset whenever either module is replaced.

NOTE: For non-PATS vehicles, if the IPC and/or the PCM were replaced, follow Steps 1-3.

NOTE: A minimum of 2 PATS keys must be programmed into the IPC to complete this procedure and allow the vehicle to start.

1. Turn the key from the OFF position to the ON position.

2. From the scan tool, follow the on-screen instructions to ENTER SECURITY ACCESS. For additional information, refer to Anti-Theft Security Access Anti-Theft Security Access.

3. From the scan tool, select: Parameter Reset and follow the on-screen instructions.

4. NOTE: If the IPC or the IPC and the PCM were replaced, updated or reconfigured, 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. If only the PCM was replaced, go to Step 9.

From the scan tool, select: Ignition Key Code Erase and follow the on-screen instructions.

5. Turn the key to the OFF position and disconnect the scan tool.

6. Turn the key to the ON position for 6 seconds.

7. Turn the key to the OFF position and remove the key.

8. Insert the second PATS key into the ignition lock cylinder and turn the key to the ON position for 6 seconds.

9. Both keys now start the vehicle.

10. If more keys are required to be programmed, refer to Key Programming Using Two Programmed Keys Using Two Programmed Keys.