How to train the TPMS tire pressure monitoring sensors? 1. Turn the ignition switch to the OFF position, then press and release the brake pedal. 2. Turn the ignition switch from OFF to ON position three times, ending in the ON position. 3. Press and release the brake pedal. 4. Turn the ignition switch to the OFF position. 5. Turn the ignition switch from OFF to RUN position three times, ending in the RUN position. A horn chirp will sound once and the TPMS indicator will flash if the training mode has been successfully activated. If so, the message center will display \"TRAIN LF \". 6. Place the tire pressure monitoring system activation tool on the left (driver's side) tire sidewall at the valve stem. Press and release the test button on the TPMS tool repeatedly until the horn chirps. (It may take up to 6 seconds for the tool to activate the sensor; allow the tool to remain at the sidewall for the entire 6 seconds.) The horn chirp indicates that the body control module has identified the TPMS sensor. 7. Within 2 minutes of hearing the horn chirp confirming the programming of the LF tire, place the TPMS tool on the right (passenger side) tire sidewall at the valve stem and press the test button to activate the sensor. 8. Repeat step 7 for the right rear tire followed by the left rear tire in that order. The procedure is complete after the last tire has been trained. When training is complete, the message center (if equipped) will display \"tire training complete \". Replacement part number: TPMS-19, 8C2T-1A203-A; Supported models: 2007-2016 for; 2008-2016 for F-450 F-550 Super Duty; 2007-2016 for; 2007-2014 for Edge; 2006-2016 for Escape; 2008-2016 for Expedition; 2006-2016 for Explorer, 2008-2015 for Taurus, 2008-2016 for E-150, E-250, E-350, E-450, Econoline, 2008-2016 for Fiesta, 2008-2016 for Crown Victoria, 2011-2016 for Transit Connect, 2006-2011 for [vehicle model]. Color: White. Material: Plastic. Package contents: 1 x Tire pressure sensor. Note: If the vehicle or wheels/sensors have been stationary for more than 30 minutes, the sensors will go into \"sleep mode \" to save battery. They will need to be reactivated by simply moving them or rolling the tires, which does not communicate with the vehicle. Note: The TPMS training procedure must be performed on one vehicle at a time, in an area free from radio interference – at least 1 meter away from other vehicles equipped with TPMS sensors. Note: Vehicles with different rear tire pressures, such as F-series trucks and E-series motorhomes, also require TPMS retraining after tire rotation. If the sensors are not trained, the TPMS warning light will illuminate on the dashboard. Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.