Ford Focus 3 c346 2013 Manual page 137

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Do not drive on significantly
under-inflated tyres. This may
cause the tyres to overheat and fail.
Under-inflation reduces fuel efficiency,
tyre tread life and may also affect your
ability to drive the vehicle safely.
CAUTIONS
Do not bend or damage the valves
when you are inflating the tyres.
Have tyres installed by properly
trained technicians.
The Deflation Detection System will
alert you if there is a change of air
pressure in any tyre. It does this by using
the ABS sensors to detect the rolling
circumference of the wheels. When the
circumference changes, this indicates
low pressure in a tyre, a warning
message is displayed in the information
display and the message indicator
will illuminate. See Information
Messages
(page
72).
If a low pressure warning message is
displayed in the information display,
check the tyre pressures as soon
as possible and inflate them to
the recommended pressure. See
Technical Specifications
If this happens frequently, have the
cause determined and rectified as soon
as possible.
Apart from a too low tyre pressure or a
damaged tyre, the following situations
can affect the rolling circumference:
Vehicle load is uneven.
When using a trailer or travelling up
and down an incline.
Using snow chains.
Driving on soft surfaces such as
snow or mud.
Wheels and tyres
Note: The system will still function
correctly, but there may be an increased
detection time.
System reset
Note: Do not reset the system when
the vehicle is moving.
Note: You should reset the system
following any adjustment to the tyre
pressures or any changing of tyres.
Note: Turn the ignition on.
1.
2.
(page
138).
-137-
Using the information display control,
navigate to Settings > Driver
assist > Deflation detection
Press and hold the OK button until
confirmation appears.

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