I have a 93 Lexas LS 400 It has the load leveler suspension. I carried a heavy load yesterday in my trunk. The rear end is now sticking up in the air. How do I get the rear end down. Is there a way to release the shocks? I tried disconneting the battery and that did not work.

Optional Information:
1993 Lexus LS400 V8

Already Tried:
Disconneted the battery.