Ford FIESTA Owner's Manual page 223

When weather temperature
changes occur, tire inflation
pressures also change. A 10°F
(6°C) temperature drop can
cause a corresponding drop of 1
psi (7 kPa) in inflation pressure.
Check your tire pressures
frequently and adjust them to the
proper pressure which can be
found on the Safety Compliance
Certification Label or Tire Label.
To check the pressure in your
tire(s):
1. Make sure the tires are cool,
meaning they are not hot from
driving even a mile.
Note: If you are checking tire
pressure when the tire is hot, (i.e.
driven more than 1 mile [1.6 km]),
never bleed or reduce air pressure.
The tires are hot from driving and
it is normal for pressures to
increase above recommended cold
pressures. A hot tire at or below
recommended cold inflation
pressure could be significantly
under-inflated.
Note: If you have to drive a
distance to get air for your tire(s),
check and record the tire pressure
first and add the appropriate air
pressure when you get to the
pump. It is normal for tires to heat
up and the air pressure inside to go
up as you drive.
2. Remove the cap from the valve
on one tire, then firmly press the
tire gauge onto the valve and
measure the pressure.
Fiesta (CCT) Vehicles Built From: 11-10-2013, Vehicles Built Up To: 31-12-2013
Wheels and Tires
3. Add enough air to reach the
recommended air pressure.
Note: If you overfill the tire, release
air by pressing on the metal stem
in the center of the valve. Then
recheck the pressure with your tire
gauge.
4. Replace the valve cap.
5. Repeat this procedure for each
tire, including the spare.
Note: Some spare tires operate at
a higher inflation pressure than the
other tires. For T type mini-spare
tires (refer to the Dissimilar spare
wheel and tire assembly
information for a description):
Store and maintain at 60 psi (4.15
bar). For full-size and dissimilar
spare tires (refer to the Dissimilar
spare wheel and tire assembly
information for a description):
Store and maintain at the higher of
the front and rear inflation pressure
as shown on the Tire Label.
6. Visually inspect the tires to
make sure there are no nails or
other objects embedded that
could poke a hole in the tire and
cause an air leak.
7. Check the sidewalls to make
sure there are no gouges, cuts or
bulges.
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