Tyre Pressure Monitoring (Option) - Volvo XC90 Owner's Manual

07 Wheels and tyres

Tyre pressure monitoring (option)

General
Tyre pressure monitoring, TPMS (Tyre Pres-
sure Monitoring System) warns the driver
when the pressure is too low in one or more
of the car's tyres. It uses sensors located in-
side the air valve in each wheel. When the car
is driven at approximately 40 km/h the sys-
tem detects the tyre pressure. If the pressure
is too low then a warning lamp on the dash-
board illuminates and a message is shown in
the information display.
Always check the system after changing a
wheel in order to ensure that replacement
wheels work with the system.
For information on correct tyre pressure, see
page 155 and 156.
The TPMS system does not replace normal
tyre maintenance.
IMPORTANT
If a fault should arise in the tyre pressure
07
system a warning lamp on the dashboard
will illuminate. The message
SYST SERVICE REQUIRED
This can be for various reasons, e.g. fitting a
wheel not equipped with a sensor adapted
for Volvo's tyre pressure monitoring sys-
tem.
162
Adjusting tyre pressure monitoring
Tyre pressure monitoring can be adjusted in
order to follow Volvo's tyre pressure recom-
mendations, when driving with a heavy load
for example.
NOTE
The engine must not be running.
– Inflate the tyres to the required pressure.
– Select key position I or II.
– Turn the thumbwheel on the left-hand
stalk switch until the text
SURE CALIBRATION
formation display.
– Press and hold the RESET button until the
text
TYRE PRESSURE CALIBRATED
shown.
Rectifying low tyre pressure
When the message
CHECK TYRES
display:
TYRE PRESS. – Check the tyre pressure in all four tyres.
will be shown.
– Inflate the tyre(s) to the correct pressure.
– Drive the car for at least 1 minute in total
at at least 40 km/h and check that the
message disappears.
TYRE PRES-
is shown in the in-
is
LOW TYRE PRESS.
is shown in the information
Deactivating tyre pressure monitoring
NOTE
The engine must not be running.
– Key position I or II.
– Turn the thumbwheel on the left-hand
stalk switch until the text TYRE PRESS.
SYST ON is shown in the information
display.
– Press and hold the RESET button until the
text TYRE PRESS. SYST OFF is shown.
To reactivate the system repeat the same
steps 1–3, so that TYRE PRESS. SYST ON
shown in the information display.
Recommendations
Only factory fitted wheels are equipped with
TPMS sensors in the valves.
• The temporary spare wheel does not have
this sensor.
• If wheels without TPMS sensors are used
then
TYRE PRESS. SYST SERVICE RE-
QUIRED will be shown every time the car
is driven faster than 40 km/h for more than
10 minutes.
• Volvo recommends that TPMS sensors
are fitted to all wheels on the car (summer
and winter wheels).
is