Stability System Service message on a 98 sts

I am looking to purchase a 98 STS and the Stability System Service message is popping up, on other Caddys I have messed with there is a way to get the codes to pop up by by pushing a combination of heater controls. Does anyone know what buttons to push or Does anyone have any ideas on what I should check the fix the problem.
Thanks Everyone

You dealer's service advisor should be able to re-program the sensitivity of the sensors from the dash so that the warning does not come on anymore. There most likely is NO problem with the struts. Otherwise, that message will keep coming on.

Most likely cause is a steering wheel position sensor(SWPS). I don't believe this particular year has a reprogram for the SWPS sensitivity.
On-Board diagnotics for the car, I believe, is accessed from the DIC info buttons to the right of the IPC. Press "Info up"(1st button) and "On/off" (3rd button.