If the jacks work manually, but the Auto Level doesn't, then perhaps the "brain" lost its Auto Level Calibration. You should level the unit manually then follow the procedure for "Zero Point Calibration". The 1st Post in this Thread will give a link to LCI's procedure.
https://www.montanaowners.com/forums...ad.php?t=71009
Basically, turn the system OFF;
Press "Front" 10 times quickly;
Press "Rear" 10 times quickly;
and follow the reset instructions.
Note: it has to be exactly 10 times on each button or the process won't work.