2008 Ford F250 Owner Guide 4th Printing - Page 232

Tires, Wheels and Loading 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 illuminate while the tool is active. The horn will sound once within 10 seconds to indicate the process was successful. Note: If a double horn chirp is heard, repeat the procedure. If a single horn chirp is not heard, move the vehicle to rotate the wheels at least a 1⁄4-turn and repeat the procedure. If the horn does not sound while attempting to reset any wheel, seek service from your authorized dealer. 3. Perform Steps 1 and 2 on the right front, right rear and finally the left rear tires. Successful completion of the reset procedure can be verified by turning the ignition to OFF without the horn sounding. If two short beeps are heard, the reset procedure was unsuccessful and must be repeated. If after repeating the procedure two short beeps are heard when the key is turned to OFF, seek assistance from your authorized dealer. 232 2008 F-250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA (fus)