2017 VOLVO XC90 T8 Owner´s Manual

WHEELS AND TIRES
487
Checking tire inflation pressure
The Tire Pressure Monitoring System (TPMS) makes it possible to view the current inflationpressure status of all four tires.
Checking inflation pressureOpen the Car status app in
the center display's Application view. Tap
Status to see the
current inflation pressure sta- tus of all four tires.
The on-screen graphic displays the inflation pres- sure status.
Status view. The illustration is generic and may vary from model to model or after a software update
Color indications: Green : tire pressure is above the threshold for a
low inflation pressure warning. Yellow
: low tire pressure.
• One yellow wheel: the tire indicated is under- inflated.
• All wheels yellow: two or more tires areunder-inflated.
Stop safely and check/reinflate the tire(s) assoon as possible. Calibrate TPMS after reinflatingthe tire(s). All wheels gray:
• Calibration is underway
• Inflation pressure status is not known
It might be necessary to drive at a speed of at least 20 mph (30 km/h) for several minutes forthe system to become operational. All wheels gray combined with the message
Tire pressure system Temporarily
unavailable and the TPMS symbol in the
instrument panel (
) remains illuminated
after flashing for 1 minute : the system is tem-
porarily unavailable. It should become operational again shortly. All wheels gray combined with the message
Tire pressure system Service required and
the TPMS symbol in the instrument panel (
) remains illuminated after flashing for
1 minute : the system is not functioning correctly.
Have it checked by a trained and qualified Volvo service technician.
Related information
• Calibrating the Tire Pressure MonitoringSystem (TPMS) (p. 489)
• Reinflating tires equipped with the TirePressure Monitoring System (TPMS)(p. 488)
• Tire Pressure Monitoring System (TPMS)(p. 485)

WHEELS AND TIRES
488
Reinflating tires equipped with the Tire Pressure Monitoring System(TPMS) When low tire pressure has been detected, a message will be displayed in the instrumentpanel and the Tire Pressure Monitoring Systemsymbol will illuminate.
SymbolExplanation
When the TPMS symbol illuminates and a message is displayed, check,reinflate the tire(s) and calibrateTPMS.
1. Use a tire pressure gauge to check the infla-
tion pressure of all four tires.
2. Re-inflate the tire(s) to the correct pressure. Consult the tire pressure decal located on the driver's side B-pillar (the structural mem-ber at the side of the vehicle, at the rear ofthe driver's door opening) or the inflationpressure table in your printed owner's man-ual supplement.
3. Calibrate the Tire Pressure Monitoring System, see the article "Calibrating the TirePressure Monitoring System". 4. In some cases, it may be necessary to drive
the vehicle for several minutes at a speed ofat least 20 mph (30 km/h) to erase theTPMS telltale warning and the text message.Please be aware that the TPMS telltalewarning will not go out until the low tire pres-sure has been corrected and calibration hasbeen carried out.
NOTE
To help avoid incorrect tire inflation pressure, if possible only inflate the tires when they arecold. The tires are considered to be coldwhen they have the same temperature as thesurrounding (ambient) air. This temperature isnormally reached after the vehicle has beenparked for at least 3 hours. After driving a dis-tance of approximately 1 mile (1.6 km), thetires are considered to be warm.
CAUTION
When inflating tires, press the pump's mouth- piece straight onto the valve to help avoidbending or otherwise damaging the valve.
CAUTION
• After inflating the tires, always reinstall the valve cap to help avoid damage to thevalve from dirt, gravel, etc.
• Use plastic valve caps only. Metal capscould corrode and become difficult toremove.
WARNING
•Incorrect inflation pressure could lead to tire failure, resulting in a loss of control ofthe vehicle.
• Tire monitoring systems cannot indicatesudden tire damage caused by externalfactors (e.g., a blowout) in advance.
Related information
•Tire Pressure Monitoring System (TPMS)(p. 485)
• Checking tire inflation pressure (p. 487)
• Calibrating the Tire Pressure MonitoringSystem (TPMS) (p. 489)

WHEELS AND TIRES
489
Calibrating the Tire Pressure Monitoring System (TPMS)In order for the Tire Pressure Monitoring System to work properly, tire pressure reference valuesmust be set correctly. This must be done eachtime wheels are changed or tire pressures aremodified.
Calibrating TPMSTo calibrate the system:
1. Switch off the engine.
2. Re-inflate the tire(s) to the correct pressure. Consult the tire pressure decal located on the driver's side B-pillar (the structural mem-ber at the side of the vehicle, at the rear ofthe driver's door opening) or the inflationpressure table in your printed owner's man-ual supplement.
3. Start the engine. 4. Open the
Car status app in the center dis-
play's App view.
5. Tap Status to access Tire Pressure
Monitoring System. 6. Tap the calibration button. 7.
Tap
OK after the tire pressure in all four tires
has been checked and adjusted.
8. Drive the vehicle. > The calibration process will be completedwhile driving and will be interrupted if the vehicle is parked and the engine isswitched off. Calibration continues auto-matically when driving resumes.
When enough data has been collected to detecta low tire pressure situation, the tires' color in thecenter display will change to green. The systemwill not give any text confirmation when calibra-tion is finished although it will state if calibrationfails. When driving with heavy loads or at sus-tained highway speeds, the tire pressure shouldbe 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 wheelshave been changed or the tire inflation pres-sure has been corrected according to the tirepressure decal or tire inflation pressure table. If correct reference values have not been set, the system cannot issue low tire pressurealerts correctly. The vehicle must be parked with the engine running to access the calibration button andto 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 thecalibration procedure outdoors or in a work-shop with exhaust gas evacuation equipment.
Related information
• Tire Pressure Monitoring System (TPMS) (p. 485)

WHEELS AND TIRES
* Option/accessory.
490
Tire sealing system 5
Certain models are equipped with a tire sealing system that enables you to temporarily seal ahole in the tread surface and re-inflate a flat tire,or to adjust a tire

WHEELS AND TIRES
491
NOTE
•After use, the sealing compound bottle, the hose, and certain other system com-ponents must be replaced. Please con-sult your Volvo retailer for replacementparts.
• If the sealing compound bottle

WHEELS AND TIRES
492
Using the tire sealing system
Overview
Electrical wire
Hose
Air release valve
Protective hose cover
Speed limit sticker (on the rear side of the compressor)
Bottle holder (orange cover)
Air pressure gauge
Bottle with sealing compound
On/Off switch
Connecting
1. Activate the vehicle's hazard warning flashersif the tire sealing system is to be used in an area with traffic. If the flat tire was caused by a nail, etc., do not remove it from the tire. It will help to sealthe hole.
2. Peel off the speed limit sticker and affix it to the windshield so that it is clearly visible tothe driver. The vehicle should not be drivenfaster than 50 mph (80 km/h) while using atire that has been temporarily repaired withthe tire sealing system.
3. Ensure that the on/off switch is in position 0
and take out the electrical wire and hose.
NOTE
Do not break the seal on the bottle. This occurs automatically when the bottle isscrewed into the holder.
WARNING
Contact with the sealing compound may cause skin irritation. If contact occurs, washthe affected area immediately with soap andwater.
4. Unscrew the orange cover over the bottle holder on the compressor and unscrew the cap on the bottle of sealing compound.
5. Screw the bottle into the bottle holder as far as possible.
WARNING
The bottle is equipped with a catch to keep it securely in place and help prevent sealingcompound leakage. Once in place, the bottlecannot be unscrewed. This must be done by atrained and qualified Volvo service technician.

WHEELS AND TIRES
}}
493
6. Be sure the air release valve on the com-
pressor's hose is completely closed. Remove the valve cap from the tire

||
WHEELS AND TIRES
49414. Immediately drive the vehicle for approxi-
mately 2 miles (3 km) at a maximum speed of 50 mph (80 km/h) to distribute the seal-ing compound in the tire. During the tire'sfirst revolution, some sealing compound mayspray out of the puncture hole.
WARNING
No one should stand closer to the vehicle than approx. 7 ft (2 m) when it drives away tohelp avoid being sprayed with sealing com-pound.
CAUTION
If your vehicle is equipped with the Tire Pres- sure Monitoring System (TPMS), the use ofthe sealing compound may lead to incorrecttire pressure readings or in rare cases, dam-age to the tire pressure sensor. Use the tiresealing system to check and adjust the dam-aged tire's inflation pressure.
NOTE
•Safely stow the tire sealing system in a convenient place as it will soon be usedagain to check the tire