Erase All Key Codes and Program Two Keys

Precautions:

Note:
- This procedure is for the situation where a customer needs keys programmed into the system and does not have 2 programmed ignition keys available.
- This procedure is also useful when programmed ignition key(s) have been lost or the ignition switch assembly has been replaced, and it is desired to erase key(s) from passive anti-theft system (PATS) memory.

Note:
- This procedure will erase all programmed ignition keys from vehicle memory and the vehicle will not start until two keys have been reprogrammed to the vehicle.

Note:
- Two PATS encoded keys with the correct mechanical cut must be available to perform this procedure. One or both of them may be the customer's original keys.

Note:
- If additional keys are to be programmed, follow Key Programming Program a Key Using Two Programmed Keys. Program A Key Using Two Programmed Keys
- If the remaining keys are with the customer and are not available with the vehicle, then instruct the customer to refer to their Owner's Manual under "Programming Spare Keys Procedure" for instructions on programming their remaining keys. Spare Key Programming Switch

Procedure:
1. Turn ignition switch from OFF to RUN.
2. Enter New Generation STAR Tester/Service Bay Diagnostic System (NGS/SBDS). Follow the Security Access Procedure to obtain security access. Security Access Procedure
3. From NGS/SBDS menu: Select IGNITION KEY CODE ERASE.

Note: Do NOT select any additional commands from this menu.

4. Turn ignition switch to OFF and disconnect the NGS.
5. Insert first encoded key into the ignition switch and turn the switch to RUN for three seconds.
6. Insert the second encoded key into the ignition switch and turn the switch to RUN for three seconds.
7. Vehicle should now start with both ignition keys.