I had to get keys for my 94 deville. If you have the ignition key with the security pellet I would order it from a dealership. I did and have no problems. My mom had a key made by a lock smith and it locks out her ignition for 24 hrs if she uses it, she cant even start it with the original key. It only cost me $30 to get the key from the dealership but it did take 2 weeks to be shipped.