Replacement Key Shell for Cadillac Smart Remote Key Case Entry Fob 5 Buttons Transmitter Keyless, No Transponder Chip and Electronics/Battery, shipping time is about 7-15days 1 X Keyless Entry Key Remote Fob Case, Best replacement for broken or worn keys, or great for an additional key. This item isn't a remote key, it's just a remote key shell. NO interior (remote/electronics/ignition or transponder chips) unit inside. Take the internal electronics (include immobilizer/transponder chip) from your original remote and place them to our key shell, then it is OK! There's no programming needed Pls kindly check out your key button position before buying, make sure your remote key case looks exactly the same with our case.