Check your tire pressures and inflate to the pressure shown on the decal on the door jamb or shown in your owners manual. When the tire pressures are set to the correct pressures drive the truck and after several miles the light should go out unless there is a problem with one off the sensors.
I tried all of the above, including buying 4 sets of new sensors and new tires. The light still stay's on!! One on line owner said dealer told him it's a computer chip issue. My dealer says not possible. Truck would not start if air sensor light stays on? Mine has been on for "5" years,and starts every time. [2007 model]Has anyone tried to find where the plug is for the light? RJB