2001 Lexus LX 470 Height Control Problem

Engine Mechanical problem
2001 Lexus LX 470 V8 Four Wheel Drive Automatic

Recently my Lexus has gone down to the "low" position on the height control and it won't move out of that position. I tried moving it back to normal height but it won't budge. Also the the "off" light for the height control keeps flashing. What could be the problem with my lexus? Thank you!