This is about one new transponder key, with the chip included inside the key's head, tested and ready to be programmed.
You will need to take your actual working key with this new item to a professional locksmith or the dealership to get it cut to fit your car's locks.
Once you have the key cut, you'll need to get it programmed to your car.
That could be done by yourself. All you need to have is one working key to do it.
With the item you'll receive the programming instructions. Is a very easy procedure you can follow step by step.
It fits:
(2004-2010) Cadillac STS
