i take it you still have the stock struts under it ?
someone may have changed the option setting like i did to remove the service ride controll message , disableing the struts and locking them in full firm ....if memeory serves the IPC has battery backup , no way to reset ...we need to ensure you option settings are correct ....lemme do some math and read the manuals
also does the car have heated windshield? and it does have the 4.9 and NOT the northstar right ?