1999 Ford Explorer Owner Guide 1st Printing - Page 148

Driving underinflated tire(s) on any wheel(s) high crown in center of road high crosswinds wheels out of alignment loose or worn components in steering linkage AIR SUSPENSION SYSTEM (IF EQUIPPED) The load leveling feature of the air suspension automatically keeps the vehicle at a constant level if a load is added or removed from the vehicle. This system maintains the vehicle height at a constant level by automatically adding air or releasing air from the springs to offset changes in vehicle loads. When ever a door is opened (including the liftgate) the system memorizes and maintains the height of the vehicle until all doors are closed. It is normal to hear a buzz or clicking from the air compressor on the vehicle when the ignition is turned off. The system stays energized for 40 minutes after the ignition is turned off to compensate for any load changes made after the vehicle is parked. The air suspension shut-off switch is located in the cargo area behind the left rear quarter trim panel. On vehicles equipped with Air Suspension, turn OFF the Air Suspension switch prior to jacking, hoisting or towing your vehicle. Normal vehicle operation does not require any action by the driver. 148