Ford 2010 Crown Victoria Owner's Manual page 276

Crown Victoria Severe Duty
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
If after repeated attempts to enter the reset mode, the horn does not
sound, and the TPMS indicator
your authorized dealer.
276
2010 Crown Victoria (cro)
Owners Guide, 1st Printing
USA (fus)
will flash.
does not flash, seek service from