FORD 2010 Crown Victoria v.1 - Manual (Page 276)

4. Press and hold the brake pedal
for two (2) seconds, then release.
5. Turn the ignition to off—DO
NOT remove the key.
6. Cycle the ignition from off to on three (3) times ending in on—DO
NOT start the engine.
If the reset mode has been entered successfully, the horn will sound
once, and the TPMS indicator
will flash.
If after repeated attempts to enter the reset mode, the horn does not
sound, and the TPMS indicator
does not flash, seek service from
your authorized dealer.
Crown Victoria Severe Duty
276
2010 Crown Victoria (cro)
Owners Guide, 1st Printing
USA (fus)