How to Program a 2018 GMC Terrain Ignition Chip Key Transponder
Step by Step How to Programming Instructions:
If you have one working Key Fob:
1. Insert the working key into the ignition and turn it to ON, then OFF, and remove.
2. Within 10 seconds, insert the new cut key into the ignition and turn it to ON for 5 seconds, then OFF, and remove.
3. The new key and fob are now programmed.
4. A maximum of only 8 keys can be programmed into the system.
If you have no working Key Fobs:
This vehicle is not onboard programmable and requires a qualified professional to program smart key remote fobs.
1. Locate an automotive locksmith in your area using LocateALocksmith.com.
2. If your vehicle is still mobile, it may save you money by driving to the locksmith instead of having them come to you.
3. The locksmith will then hook up specialized computer equipment to your vehicle in order to program the smart key remote fob.
