Tard.is correct. Tire Pressure Sensor Warning light when no wheel sensors

2008 Ford Expedition

Removed 18-inch M&S-tired wheels and installed four 17-inch F-150 rims on which aggressive snow tires are mounted.



At exactly 30.0 miles* some beeps and blinking orange tire crossection icon in instrument panel.

(*I reset trip odometer when I mounted the sensorless wheels)



After a few minutes, light illuminated steadily.

Whenever ignition ON: Odometeradout:[Tire pressure sensor fault]

Told you so…