[RMcNeal]

May not be your problem since this is your first trip, but I had that on 2 tires recently, changed the batteries in the sensor and all OK now. Mine are about 2 years old though. I have been getting "Tire Pressure Sensor Fault" errors on the truck lately also. It seems to appear in certain areas that I drive and does eventually reset itself. I think something is interfering with the signal from the Ford built in TPMS.