--- title: "2016 - 2018 Chevrolet, Buick, Cadillac, GMC Transponder Key Programming Instructions (Select Models: See Attached List))" description: 2016-2018 Buick, Chevrolet, Cadillac, GMC Transponder Key Programming List   --- [Skip to content](https://guide.carkeysexpress.com/hc/en-us/articles/360061636811-2016-2018-chevrolet-buick-cadillac-gmc-transponder-key-programming-instructions-select-models-see-attached-list-#main-content) English Show submenu for translations Car Keys Express Open main navigation Close main navigation - English Show submenu for translations - Contact us Contact us How can we help you? - There are no suggestions because the search field is empty. 1. [Help Center](https://guide.carkeysexpress.com/?hsLang=en) 2. [Key Programming Instructions](https://guide.carkeysexpress.com/key-programming-instructions?hsLang=en) 3. [Key & Remote Programming Instructions](https://guide.carkeysexpress.com/key-programming-instructions?hsLang=en#key-remote-programming-instructions) # 2016 - 2018 Chevrolet, Buick, Cadillac, GMC Transponder Key Programming Instructions (Select Models: See Attached List)) #### Adding GM Basic Transponder Keys Must Have 2 Working Key (Manual Procedure) Up to 2017 Models 1. Insert a master/working key and switch the ignition on. 2. Insert the SECOND master/working key and switch the ignition on. 3. Wait for the security/immobilizer light to go out. Switch ignition off and remove the key. 4. Quickly insert a UN-programed key and switch the ignition on. 5. Wait for the security/immobilizer light to go out. Switch ignition off and remove the key. 6. The key is now programmed. #### Adding GM Basic Transponder Keys All Keys Lost (Manual Procedure) 2017 and Newer Models #### NOTE: You Must Add Two Keys For Vehicle To Start And Run. 1. Switch ignition on with a new non-programed 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 ignition back on with the same non-programmed master key. 7. The security/immobilizer light or a message will come on the dash. 8. After approximately 10 minutes the security/immobilizer light or a message will go out. 9. switch the ignition off. 10. Wait 5 seconds. 11. Switch ignition back on with the same non-programmed master key. 12. The security/immobilizer light or a message will come on the dash. 13. After approximately 10 minutes the security/immobilizer light or a message will go out. 14. switch the ignition off. 15. Wait 5 seconds. 16. Try and start the vehicle it will now start with no light/message on the dash. 17. The key is programmed. 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