if it's on a very plain and even surface you can jack it up from the towbar too... hawkeye requests the calibration blocks when you want to calibrate then it releases the air as the rear to sit on the calibration blocks and stores automatically the heights when you prompt yes so both rear sides must be at the same level if you see what i mean
i dont understand what are you asking here, there are two types, the early modells which will bring up the ABS and TC warnings with locked central diff and the latest ones which will not... the rest is programmable