New Keyless Entry Insert Key Blade Fob Case Smart Remote Key Shell for Cadillac XTS STS CTS DTS Replacement Keyless Key Case Fob (No Chip) it's just a key shell. NO interior (remote/electronics/transponder chips) unit inside. Pls kindly check out your remote key button position before buying, make sure your remote key case looks exactly the same with this case. The key is uncut and needs be brought to a locksmith or a dealer to be cut to match your car. Take the internal electronics (include immobilizer/transponder chip) from original remote and place them to our key shell, then it is OK! There's no programming needed Shipping time: 7-15 days