How do you turn off check air pressure on 2006 tundra?

On my 2005 there is a button located on the underside of the steering column. i believe you push and hold it until the light goes out. This tells the computer that all tire pressures are acceptable and sets the minimum at which any one tire can be. before you do that, check all your tire pressures including your spare. Your light may be telling youthat one of your tires is low. Check your manual to determine the exact proper procedure.