How to Program a 2008 GMC Yukon Ignition Chip Key Transponder
Step by Step How to Programming Instructions:
These programming procedures are applicable only to vehicles built in the USA.
Can I program a new key myself if I have no working keys?
Yes, once you have the new key cut by a locksmith, follow these instructions:
1. Insert an existing programmed working key into the ignition cylinder.
2. Turn the ignition to the ON position for 5 seconds, then back to the OFF position.
3. Remove the existing key and within 5 seconds insert the new key and turn it to the ON position for 5 seconds.
4. Turn the key OFF then back to ON. The key is now programmed. Start the vehicle to test the key.
