Volvo XC90 TWIN ENGINE Owner's Manual page 564

WHEELS AND TYRES
|| 5. Press TPMS .
NOTE
The car must be stationary when calibration is
started.
6. Press Calibrate .
7. Tap on OK to confirm that the tyre pressure
in all four tyres has been checked and
adjusted.
562
8. Run the car until calibration is complete.
Calibration is performed when the car is
driven at a speed above 35 km/h (22 mph).
> When sufficient data has been collected
to enable the system to detect low tyre
pressure, the tyres in the centre display
change colour from grey to green. The
system provides no additional confirma-
tion that the calibration is complete.
If the car's ignition is switched off before
calibration is complete, the tyres in the
centre display change colour from grey to
green upon next start-up, even if calibra-
tion is not complete. Perform calibration
again and allow it to complete within the
same operating cycle to ensure that the
calibration is carried out correctly.
If start-up of calibration fails, the following
message appears: Calibration
unsuccessful. Try again.
NOTE
Remember to always calibrate the tyre pres-
sure monitoring system when you have
changed a wheel or if the tyre pressure has
been changed according to the tyre pressure
label or tyre pressure table.
If correct reference values have not been set,
the system may not warn correctly about low
tyre pressure.
The car must be stationary with the engine
running for you to have access to the calibra-
tion button and start the calibration process.
WARNING
The exhaust gases contain carbon monoxide,
which is invisible and odourless, but highly
toxic. For this reason, calibration must always
be performed outside or in a workshop with
exhaust extraction.
.
Related information
•
Recommended tyre pressure (p. 559)
•
Adjusting tyre pressure (p. 558)
•
See tyre pressure statue in the centre dis-
play* (p. 563)
•
Action in the event of warning for low tyre
pressure (p. 564)
•
Tyre pressure monitoring system* (p. 560)
* Option/accessory.