Ford Crown Victoria (2011 year). Manual — part 39

following two conditions: (1) This device may not cause harmful
interference, and (2) This device must accept any interference received,
including interference that may cause undesired operation.

WARNING: The tire pressure monitoring system is NOT a
substitute for manually checking tire pressure. The tire pressure

should be checked periodically (at least monthly) using a tire gauge,
see Inflating your tires in this chapter. Failure to properly maintain
your tire pressure could increase the risk of tire failure, loss of control,
vehicle rollover and personal injury.

Changing tires with a TPMS

Each road tire is equipped with
a tire pressure sensor fastened
to the inside rim of the wheel.
The pressure sensor is covered
by the tire and is not visible
unless the tire is removed. The
pressure sensor is located
opposite (180 degrees) from the
valve stem. Care must be taken
when changing the tire to avoid
damaging the sensor. It is
recommended that you always have
your tires serviced by an authorized
dealer.

The tire pressure should be checked
periodically (at least monthly) using
an accurate tire gauge, refer to
Inflating your tires in this chapter.

Tires, Wheels and Loading

159

2011 Crown Victoria (cro)
Owners Guide, 3rd Printing
USA (fus)

Understanding your tire pressure monitoring system (TPMS)

The tire pressure monitoring system measures pressure in your four road
tires and sends the tire pressure readings to your vehicle. The low tire
pressure warning light will turn on if the tire pressure is significantly low.
Once the light is illuminated, your tires are under-inflated and need to be
inflated to the manufacturer’s recommended tire pressure. Even if the
light turns on and a short time later turns off, your tire pressure still
needs to be checked. Visit www.checkmytires.org for additional
information.

When your temporary spare tire is installed

When one of your road tires needs to be replaced with the temporary
spare, the TPMS will continue to identify an issue to remind you that the
damaged road wheel/tire needs to be repaired and put back on your
vehicle. This includes the optional full-sized matching spare wheel and
tire, as it is intended for temporary use only.

To restore the full functionality of the tire pressure monitoring system,
have the damaged road wheel/tire repaired and remounted on your
vehicle. For additional information, refer to Changing tires with a
TPMS in this section.

Tires, Wheels and Loading

160

2011 Crown Victoria (cro)
Owners Guide, 3rd Printing
USA (fus)

When you believe your system is not operating properly

The main function of the tire pressure monitoring system is to warn you
when your tires need air. It can also warn you in the event the system is
no longer capable of functioning as intended. Please refer to the
following chart for information concerning your tire pressure monitoring
system:

Low tire pressure
warning light

Possible
cause

Customer action required

Solid warning light

Tire(s)
under-inflated

1. Check your tire pressure to
ensure tires are properly inflated;
refer to Inflating your tires in
this chapter.
2. After inflating your tires to the
manufacturer’s recommended
inflation pressure as shown on the
Tire Label (located on the edge of
driver’s door or the B-Pillar), the
vehicle must be driven for at least
two minutes over 20 mph
(32 km/h) before the light will
turn off.

Spare tire in
use

Your temporary spare tire is in
use. (This includes the optional
full-sized matching wheel and
tire). Repair the damaged road
wheel/tire and reinstall it on the
vehicle to restore system
functionality. For a description on
how the system functions, refer to
When your temporary spare tire
is installed in this section.

TPMS
malfunction

If your tires are properly inflated
and your spare tire is not in use
and the light remains on, have the
system inspected by your
authorized dealer.

Tires, Wheels and Loading

161

2011 Crown Victoria (cro)
Owners Guide, 3rd Printing
USA (fus)

Low tire pressure
warning light

Possible
cause

Customer action required

Flashing warning
light

Spare tire in
use

Your temporary spare tire is in
use. (This includes the optional
full-sized matching wheel and
tire). Repair the damaged road
wheel and re-mount it on the
vehicle to restore system
functionality. For a description of
how the system functions under
these conditions, refer to When
your temporary spare tire is
installed in this section.

TPMS
malfunction

If your tires are properly inflated
and your spare tire is not in use
and the TPMS warning light still
flashes, have the system inspected
by your authorized dealer.

When inflating your tires

When putting air into your tires (such as at a gas station or in your
garage), the tire pressure monitoring system may not respond
immediately to the air added to your tires.

It may take up to two minutes of driving over 20 mph (32 km/h) for the
light to turn off after you have filled your tires to the recommended
inflation pressure.

How temperature affects your tire pressure

The tire pressure monitoring system (TPMS) monitors tire pressure in
each pneumatic tire. While driving in a normal manner, a typical
passenger tire inflation pressure may increase approximately 2 to 4 psi
(14 to 28 kPa) from a cold start situation. If the vehicle is stationary
overnight with the outside temperature significantly lower than the
daytime temperature, the tire pressure may decrease approximately 3 psi
(21 kPa) for a drop of 30°F (17°C) in ambient temperature. This lower
pressure value may be detected by the TPMS as being significantly lower
than the recommended inflation pressure and activate the TPMS warning
light for low tire pressure. If the low tire pressure warning light is on,
visually check each tire to verify that no tire is flat. (If one or more tires
are flat, repair as necessary.) Check air pressure in the road tires. If any
tire is under-inflated, carefully drive the vehicle to the nearest location
where air can be added to the tires. Inflate all the tires to the
recommended inflation pressure.

Tires, Wheels and Loading

162

2011 Crown Victoria (cro)
Owners Guide, 3rd Printing
USA (fus)