Note: Adding Gm Basic Transponder Keys Must Have A Working Key (Manual Procedure)

1. Insert a master/working key and switch the ignition on.
2. Wait for the security/immobilizer light to go out.
3. Switch the ignition off and remove the key.
4. Quickly insert an UN-paired key and switch the ignition on. Wait for the security/immobilizer light to go out.
5. Switch the ignition off and remove the key.
6. The key is now paired.

Note: Adding Gm Basic Transponder Keys All Keys Lost (Manual Procedure)

1. Switch the ignition on with the UN-paired master key.
2. The security/immobilizer light or a message will come on the dash.
3. After approximately 10 minutes the security/immobilizer light or a message will go out.
4. switch the ignition off.
5. Wait 5 seconds.
6. Switch the ignition back on with the same UN-paired master key. The security/immobilizer light or a message will come on the dash.
7. After approximately 10 minutes the security/immobilizer light or a message will go out.
8. Turn the ignition off.
9. Wait 5 seconds.
10. Switch the ignition back on with the same UN-paired master key.
11. The security/immobilizer light or a message will show on the dash.
12. After approximately 10 minutes the security/immobilizer light or a message will go out.
13. Turn the ignition off.
14. Wait 5 seconds.
15. Try and start the vehicle it will now start with no light/message on the dash.
16. The key is paired.