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When inflating your tires, How temperature affects your tire pressure, Tires, wheels and loading – FORD 2012 Transit Connect User Manual

Page 159

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Low tire
pressure
warning light

Possible
cause

Customer action required

Flashing
warning light

Spare tire in
use

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 the tires are properly inflated and
the spare tire is not in use but the
light remains on, contact your
authorized dealer as soon as possible.

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

159

2012 Transit Connect (tst)
Owners Guide, 1st Printing
USA
(fus)

PAGE POSITION: 159

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