FORD 2009 F-150 v.2 - Manual (Page 240)

TPMS reset procedure
It is recommended that you read the entire procedure before attempting.
Note: To enter the reset mode, Steps 1–6 MUST be completed within
60 seconds.
1. Place the ignition in the off position and keep the key in the ignition.
2. Press and release the brake
pedal.
3. Cycle the ignition from off to on
three (3) times ending in the on
position—DO NOT start the engine.
2009 F-150 (f12)
Owners Guide, 2nd Printing
USA (fus)
Tires, Wheels and Loading
240