In sites just like you explained where the stairs are that far off the ground, do a manual level. Turn the unit on and hold the manual button until it lights up. Push the front button until both jacks touch the ground, then do the same for the rear. Then level front to back to the desire level. After that level side to side. You don't have to be perfectly level, so level it to how you like it. The auto function works well in fairly leveled sites and that's about it.
2014 Georgetown 351DS
-TruCenter -Front/Rear CHF -Hellwig Links -Tiger Trak -Ran McNally GPS -ScanGauge -Truck Systems TPMS -5 Star Tune