Mazda MX-5 Owner's Manual page 537

Tyre Pressure Monitoring System Warning Light (Illuminate)
Take the appropriate action and verify that the warning light turns off.
Vehicle with conventional tyres
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.
WARNING
If the tyre pressure monitoring system warning
light illuminates or 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 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 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.
Warning/Indicator Lights and Warning Sounds
Warning
*
Action to be taken
Inspect the tyres and adjust to the speci ed in ation
pressure (page 6-34 ).
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 in ation
pressure, the TPMS warning light/beep may turn
on after the tyres cool and pressure drops below
speci 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 at. However, when you 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 rein ating the tyre as leaks are dangerous
— take it to an expert repairer, we recommend an
Authorised Mazda Repairer.
If Trouble Arises
7–43
*Some models.