Hey there! If you're looking for a replacement key fob for your Cadillac, this might be just what you need. This 4-button remote works with Cadillac STS (2008-2011), DTS (2008-2011), and CTS (2008-2013) models. It's got all the functions you'd expect - lock, unlock, panic button, and trunk release. The FCC ID is OUC6000066 and it runs on 315MHz frequency with a standard CR2032 battery (included!). Just a heads up - this is an aftermarket part, not OEM, but it should work just like the original as long as the part numbers match. Make sure your current remote looks identical and has the same FCC ID before buying. You'll need to get this programmed and cut by a locksmith or dealership - and pro tip: make sure the programming works before they cut the key to avoid any headaches. The remote itself is black, measures about 2.56 x 1.77 inches, and is made from durable plastic and metal materials. Perfect if you've lost your original remote or need a spare. Just double-check your vehicle compatibility and part numbers to make sure it'll work for your specific Cadillac model year.