you can go to the suspension system,it will give you several options,SHOWROOM,INFLATE,DEFLATE ETC. Get very familiar with it..You will see the options...If you place it in showroom then this will put the vehicle in whats called tight tolerance mode and disable the center chassis controls and give you a amber light in the lower left of the cluster. To restore operation you will have to remove the showroom mode and all will be ok..Also if you replace the suspension pump you will need to download either AMK or Hitachi pump software,if you install the pump the amber light will not go away.