Volvo V90 2018 Owner's Manual Supplement page 124

PRACTICAL INFORMATION
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2. Re-inflate the tire(s) to the correct pressure.
Consult the tire pressure placard located on
the driver's side B-pillar (the structural mem-
ber at the side of the vehicle, at the rear of
the driver's door opening) or the inflation
pressure table in your printed owner's manual
supplement.
Tire inflation placard
3. Start the engine.
Car status
4. Open the app in the center dis-
play's App view.
122
TPMS
5. Tap
to access Tire Pressure
Monitoring System.
Calibrate
6. Tap .
OK
7. Tap
to confirm that the tire inflation pres-
sure has been checked and adjusted in all
four tires.
8. Drive the vehicle.
> Calibration is performed when the vehicle
is driven at a speed of at least 22 mph
(35 km/h) and will be interrupted if the
vehicle is parked and the engine is
switched off. Calibration continues auto-
matically in the background when driving
resumes.
When enough data has been collected to detect
a low tire pressure situation, the tires' color in the
center display will change to green. The system
will not give any text confirmation when calibra-
tion is finished although it will state if calibration
fails. When driving with heavy loads or at sus-
tained highway speeds, the tire pressure should
be adjusted to the recommended inflation pres-
sures.
After adjusting inflation pressure, repeat steps
1-8.
NOTE
Always remember to calibrate the Tire Pres-
sure Monitoring System when the wheels
have been changed or the tire inflation pres-
sure has been corrected according to the tire
pressure placard or tire inflation pressure
table.
If correct reference values have not been set,
the system cannot issue low tire pressure
alerts correctly.
The vehicle must be parked with the engine
running to access the calibration button and
to start the calibration process.
WARNING
The exhaust gases contain carbon monoxide,
which is invisible and odorless but very poi-
sonous. For this reason, always perform the
calibration procedure outdoors or in a work-
shop with exhaust gas evacuation equipment.