Docking light on Keystone Cougar Xlite won't go out.

The docking light on my 2016 Keystone Cougar xlite won't go out. I tried to use the remote to shut it off, but it won't take my password. It seems to have stopped working. Any suggestions how I can shut the light off before it burns out? I have tried disconnecting the battery and the shore power to no avail. Any help or experience would be appreciated. I really would like to avoid taking yet another trip to the service dept. for another of the many issues we've already had. Thanks!