Remote start locked in maintenance mode

I believe my remote start is stuck in maintenance mode or valet mode. When I hold down the lock bottom and remote start bottom, the horn will sound 3 times and won’t start. I have a total of 4 remote keys and only one works on remote start and the rest don’t. Locking and unlocking works fine on all remote as usual.
How do I get it out of this maintenance mode or is this something only the dealership could do?

A help to this will highly be appreciated.