I would start the truck and try to raise it to Off Road Height right away before the light has a chance to come on. If it raises, let it sit in the raised position over night and see if the height changes. Upon restarting the truck, see if the light comes on. I could raise mine and it would stay up for days. I tried this about 3 days and then lowered it back down and the light came right back on. Shortly there after, the pump would not function at all. Start looking for a new or used pump. I just seen some on eBay (used) for like $150.00. Let me now how what happens.