Depends on the implementation. Most times you just have to click it a few times in a row. The receiver then realizes it missed a few button presses and it re-syncs. I’m not sure what that window is though, at some point it might get so out of sync that the receiver ignores it and assumes it is a wrong fob.
If I remember correctly the size of the rolling window differs, more modern vehicles may allow about 100 code discrepancy before ignoring the transmitter, while old models might have been 5 to 10.
