Mazda CX-3 Owner's Manual page 592

If Trouble Arises
Warning/Indicator Lights and Warning Sounds
Signal
When the warning light illuminates, and
the warning beep sound is heard (about 3
seconds), tyre pressure is too low in one or
more tyres.
(Illuminate)
Tyre Pressure
Monitoring System
*
Warning Light
7–46
*Some models.
Warning
WARNING
If the tyre pressure monitoring system
warning light illuminates or fl ashes,
or the tyre pressure warning beep
sound is heard, decrease vehicle
speed immediately and avoid sudden
manoeuvring and braking:
If the tyre pressure monitoring system
warning light illuminates or fl ashes, or
the tyre pressure warning beep sound
is heard, it is dangerous to drive the
vehicle at high speeds, or perform
sudden manoeuvring or braking. Vehicle
drivability could worsen and result in an
accident.
To determine if you have a slow leak or
a fl at, pull over to a safe position where
you can check the visual condition of the
tyre and determine if you have enough
air to proceed to a place where air may
be added and the system monitored again
by an expert repairer, we recommend
an Authorised Mazda Repairer or a tyre
repair station.
Do not ignore the TPMS Warning Light:
Ignoring the TPMS warning light is
dangerous, even if you know why it is
illuminated. Have the problem taken
care of as soon as possible before it
develops into a more serious situation
that could lead to tyre failure and a
dangerous accident.
Action to be taken
Inspect the tyres and adjust to the specifi ed
infl ation pressure (page 6-42 ).
NOTE
Perform tyre pressure adjustment
when the tyres are cold. Tyre pressure
will vary according to the tyre
temperature, therefore let the vehicle
stand for 1 hour or only drive it 1.6
km (1 mile) or less before adjusting
the tyre pressures. When pressure
is adjusted on hot tyres to the cold
infl ation pressure, the TPMS warning
light/beep may turn on after the
tyres cool and pressure drops below
specifi cation.
Also, an illuminated TPMS warning
light, resulting from the tyre air
pressure dropping due to cold ambient
temperature will remain illuminated
even if the ambient temperature rises.
In this case, it will also be necessary
to adjust the tyre air pressures. If the
TPMS warning light illuminates due
to a drop in tyre air pressure, make
sure to check and adjust the tyre air
pressures.
Tyres lose air naturally over time and
the TPMS cannot tell if the tyres are
getting too soft over time or you have
a fl at. However, when you fi nd one
low tyre in a set of four-that is an
indication of trouble; you should have
someone drive the vehicle slowly
forward so you can inspect any low
tyre for cuts and any metal objects
sticking through tread or sidewall. Put
a few drops of water in the valve stem
to see if it bubbles indicating a bad
valve. Leaks need to be addressed by
more than simply reinfl ating the tyre
as leaks are dangerous — take it to
an expert repairer, we recommend an
Authorised Mazda Repairer.