2011 Ford Expedition Owner Guide 1st Printing - Page 221

Tires, Wheels and Loading To restore the full functionality of the tire pressure monitoring system, have the damaged road wheel/tire repaired and remounted on your vehicle. For additional information, refer to Changing tires with TPMS in this section. When you believe your system is not operating properly The main function of the tire pressure monitoring system is to warn you when your tires need air. It can also warn you in the event the system is no longer capable of functioning as intended. Please refer to the following chart for information concerning your tire pressure monitoring system: Low tire pressure warning light Solid warning light Possible cause Tire(s) under-inflated Customer action required 1. Check your tire pressure to ensure tires are properly inflated; refer to Inflating your tires in this chapter. 2. After inflating your tires to the manufacturer's recommended inflation pressure as shown on the Tire Label (located on the edge of driver's door or the B-Pillar), the vehicle must be driven for at least two minutes over 20 mph (32 km/h) before the light will turn off. Spare tire in use Your temporary spare tire is in use. Repair the damaged road wheel/tire and reinstall it on the vehicle to restore system functionality. For a description on how the system functions, refer to When your temporary spare tire is installed in this section. TPMS If your tires are properly inflated malfunction and your spare tire is not in use and the light remains on, contact your authorized dealer as soon as possible. 221 2011 Expedition (exd) Owners Guide, 1st Printing USA (fus)