Correct. While the original KeeLog cipher is most likely no longer secure, Microchip moved on to AES.
KeeLoq is also used for garage door openers.
Some KeeLoq receivers have a "learning mode" where it adds the next KeeLoq transmitter it hears provided it uses the same manufacturer key.
Learn mode is activated either with a button often on the PCB or with a "master" transmitter.