2008 Ford F150 Owner Guide 1st Printing - Page 233

Tires, Wheels and Loading If reset mode has been entered successfully, the horn will sound once, the TPMS indicator will flash and the message center will display TRAIN LF TIRE. If after repeated attempts to enter reset mode, the horn does not sound, the TPMS indicator does not flash and the message center does not display TRAIN LF TIRE, seek service from your authorized dealer. TPMS reset sequence The TPMS system needs to be reset starting with the left front tire in the following clockwise order: 1. Left front tire 2. Right front tire 3. Right rear tire 4. Left rear tire 1. Left front tire: Place the TPMS reset tool against the left front tire where the tire meets the rim, opposite from the valve stem (1) as shown. This is where the sensor is located inside the rim. The tool needs to be held against the tire sidewall opposite the valve stem as illustrated with the arrow on the tool pointing towards the rim; do not use the tool with the arrow pointing away from the rim as it may not activate the sensor. 2. Press and release the green button and hold the tool to the tire sidewall until the horn sounds. The red light on the TPMS reset tool will 233 2008 F-150 (f12) Owners Guide (post-2002-fmt) USA (fus)