Press ^ & @ together *WHILST THE UNIT IS POWERING UP* until the CLoc display is shown.
Once in this mode
Press @ to step between lock modes.
(I suspect that the manual means that you will be holding the ^ and the @ through the power-up process, not momentarily.)
^ = Raise Key
@ = Function Key
If there is another fault, you may have to read more in the manual. Page 32 does also show the default and entry modes for the locks.