Hydraulic leveling sustem alarms on and off while driving?

I noticed mine was alarming last year on the way home from Pigeon Forge. When we got back home and before I could check the level I noticed a small spot of oil under the hyd reservoir. Inspecting it I found that Monaco had relied on four screws to hold the reservoir in position at the weakest point possible, near the weld at the neck. I drained the tank and took it to a certified welder near our home. He wire welded the neck where a small stress crack had formed due to the tremendous vibration the tank takes while travelling down our "smooth interstates". He and I designed a brace on the back of the tank which I drilled and bolted it to the frame. I then refilled with fresh oil and problem solved. So I expect your fluid is low which as it sloshes around while travelling trips the sensor. If you do not have any leaks around the jacks I would inspect the above area carefully.