Try just turning off the 12 volt system at the Battery cut off switch, located in one of your inside cabinets or near the entry stairs. I'm pretty sure all Newmar coaches have this switch. When the switch is off , check the lights on your control module. If the lights are off, you have successfully disconnected the power. Now it's safe to try a soft limit reset.
Hope this helps.
Steve Richard and Ann Glaude
Shelby (poodle parti merle)
2002 MADP 3954 Cummins ISL 370 2003 Honda Pilot