2018 VOLVO XC90 TPMS

WHEELS AND TIRES
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* Option/accessory.537
Recommended tire pressure
The tire pressure placard on the driver's side B pillar (between the front and the rear door) indi-cates tire pressure for different loads and speedconditions.
The placard specifies the designation for the fac- tory-mounted tires on the vehicle, as well as loadlimits and inflation pressures.
Related information
• Checking tire pressure (p. 535)
• Approved tire pressure (p. 647)
Tire pressure monitoring system
*
The tire pressure monitoring system, Tyre Pressure Monitoring System (TPMS), provides awarning symbol in the instrument panel if pres-sure is too low in one or more tires.
SymbolExplanation
This symbol illuminates to indicate low inflation pressure. If there is a system malfunction, the inflation pressure warning symbolwill flash for approximately oneminute and then glow steadily.
System descriptionThe tire pressure monitoring system measures differences in rotational speed between thewheels through the ABS system to determine ifthe tires are properly inflated. If inflation pressure in a tire is too low, its diameter (and consequently its rotational speed) changes. By comparing thetires with each other, the system can determine ifthe pressure in one or more tires is too low.
General information about the tire pressure
monitoring system
In the following description, the tire monitoring system is generally referred to as TPMS. Each tire, including the spare tire (if provided) 6
,
should be checked monthly when cold and infla- ted to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard ortire inflation pressure label. (If your vehicle hastires of a different size than the size indicated onthe vehicle placard or tire inflation pressure label,you should determine the proper tire inflationpressure for those tires.) As an added safety feature, your vehicle has been equipped with a tire pressure monitoringsystem (TPMS) that illuminates a low tire pres-sure telltale when one or more of your tires issignificantly under-inflated. Accordingly, when thelow tire pressure telltale illuminates, you shouldstop and check your tires as soon as possible,and inflate them to the proper pressure. Driving on a significantly under-inflated tire cau- ses the tire to overheat and can lead to tire fail-ure. Under-inflation also reduces fuel efficiencyand tire tread life, and may affect the vehicle'shandling and stopping ability. Please note thatthe TPMS is not a substitute for proper tire main-tenance, and it is the driver's responsibility tomaintain correct tire pressure, even if under-infla-tion has not reached the level to trigger illumina-tion of the TPMS low tire pressure telltale. Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when thesystem is not operating properly. The TPMS mal-function indicator is combined with the low tirepressure telltale. When the system detects a mal-
6
Not available on all models.

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WHEELS AND TIRES
* Option/accessory.
538 function, the telltale will flash for approximately one minute and then remain continuously illumi-nated. This sequence will continue upon subse-quent vehicle start-ups as long as the malfunc-tion exists. When the malfunction indicator is illu-minated, the system may not be able to detect orsignal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacementor alternate tires or wheels on the vehicle thatprevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on yourvehicle to ensure that the replacement or alter-nate tires and wheels allow the TPMS to con-tinue to function properly.
Messages in the instrument panelIf tire pressure is too low, the low tire pressurewarning symbol is shown in the instrument panelalong with a message.
•
Tire pressure low Check tires, calibrate
after fill
•Tire pressure system Temporarily
unavailable
•Tire pressure system Service required
To keep in mind
• Always calibrate the system after changing wheels or adjusting tire pressure. See the tire pressure placard on the driver's side B pillarfor Volvo-recommended tire pressures.
• If you switch to a tire of another size than thefactory-mounted tires, the system must becalibrated for these tires to avoid false warn-ings.
• If a spare wheel 7
is used, it is possible that
the tire pressure monitoring system will notwork correctly due to the differencesbetween the wheels.
• The system does not replace the need forregular tire inspection and maintenance.
• It is not possible to deactivate the tire pres-sure monitoring system.
WARNING
• Incorrect inflation pressure could lead to tire failure, which could cause the driverto lose control of the vehicle.
• The system cannot predict sudden tiredamage.
Related information
•
Recommended tire pressure (p. 537)
• Viewing tire pressure status in the center display
* (p. 540)
• Action when warned of low tire pressure (p. 541) •
Calibrating the tire pressure monitoring sys- tem
* (p. 539)
7
Not available on all models.

WHEELS AND TIRES
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* Option/accessory.539
Calibrating the tire pressure
monitoring system *
In order for the tire pressure monitoring system, Tyre Pressure Monitoring System (TPMS), tofunction correctly, tire pressure reference valuesmust be set correctly. This must be done eachtime the tires are changed or the tire pressure isadjusted.
For example, when driving with a heavy load or at high speeds (over 160 km/h (100 mph)), tirepressure should be adjusted to the Volvo-recom-mended tire pressure values. The system shouldthen be recalibrated.
1. Switch off the ignition.
2. Inflate the tires to the pressure indicated on the tire pressure placard on the driver's side B pillar.
3. Start the vehicle. 4. Open the
Car status app in App view.
5.Tap TPMS.
NOTE
The car must be stationary when calibration is started.
6.Tap Calibrate.
7. Tap
OK to confirm that the tire pressure in
all four tires has been checked and adjusted. 8. Run the car until calibration is complete.
Calibration is done when the vehicle is driv- ing at a speed above 35 km/h (22 mph).
> When enough data has been collected forthe system to detect low tire pressure, the color of the tire symbols in the center dis-play will change from gray to green. Thesystem will not provide any other confir-mation that calibration has been comple-ted. If the car's ignition is switched off before calibration is complete, the tires in thecenter display change color from gray togreen upon next start-up, even if calibra-tion is not complete. Perform the calibra-tion again and allow it to complete withinthe same operating cycle to ensure thatthe calibration is carried out correctly. If start-up of calibration fails, the following message appears:
Calibration
unsuccessful. Try again..

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WHEELS AND TIRES
* Option/accessory.
540
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 stationary with the engine running to access the calibration but-ton 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 thecalibration procedure outdoors or in a work-shop with exhaust gas evacuation equipment.
Related information
• Recommended tire pressure (p. 537)
• Adjusting tire pressure (p. 536)
• Viewing tire pressure status in the center display
* (p. 540)
• Action when warned of low tire pressure (p. 541)
• Tire pressure monitoring system
* (p. 537)
Viewing tire pressure status in the
center display *
With the system for tire pressure monitoring, Tyre Pressure Monitoring System (TPMS), tirepressure status can be viewed in the center dis-play.
Checking status1. Open the Car status app in App view.
2.Tap TPMS to display the status of the tires.
Status indicator light
The graphic in the center display shows the sta- tus of each tire 8
.
Green tire:
• Inflation pressure is above the warning threshold.
Yellow tire:
• The tire's inflation pressure is too low. Stopand check/inflate the tire as soon as possi-ble. Recalibrate the system after adjustingthe tire pressure.
All tires yellow:
• The inflation pressure is too low in one ormore tires. Stop and check/inflate the tiresas soon as possible. Recalibrate the systemafter adjusting tire pressure.
All tires gray: • Calibration in progress.
• Status unknown.
8
The illustration is generic. Layout may vary depending on vehicle model or software version.

WHEELS AND TIRES
}}
* Option/accessory.541
The vehicle may need to be driven for a few minutes at a speed above 35 km/h (22 mph) toactivate the system. All tires gray and a message: •
Tire pressure system Temporarily
unavailable. The indicator symbol will flash
for about 1 minute and then glow steadily. The system is temporarily unavailable and willbe activated momentarily.
•
Tire pressure system Service required.
The indicator symbol will flash for about 1 minute and then glow steadily. If the system is not working properly, contact a workshop 9
.
Related information
• Calibrating the tire pressure monitoring sys- tem
* (p. 539)
• Action when warned of low tire pressure (p. 541)
• Tire pressure monitoring system
* (p. 537)
• Vehicle status (p. 580)
Action when warned of low tirepressure
When the tire pressure monitoring system, Tyre Pressure Monitoring System (TPMS), detectslow pressure in one or more of the vehicle'stires, the driver will be alerted that action is nee-ded.
If the system's indicator symbol illumi- nates and the message Tire pressure
low is displayed, check the tire pres-
sure and inflate if necessary.
1. Switch off the ignition.
2. Check the inflation pressure on all four tires using a tire pressure gauge.
3. Inflate the tire to the correct pressure (see the tire pressure decal on the driver's side door pillar).
4. Through calibration of the system via the center display after the tire pressure hasbeen adjusted. Please be aware that the indicator symbol will not go out until the low tire pressure hasbeen corrected and the system has beenrecalibrated.
NOTE
To help prevent incorrect inflation pressure, pressure should be checked when the tiresare cold. The tires are considered to be coldwhen they have reached the same tempera-ture as the ambient temperature (about 3hours after the vehicle was last driven). Afterdriving for a few kilometers, the tires will warmup and the pressure will increase.
NOTE
• After inflating a tire, always replace the valve cap to help prevent valve damagecaused by gravel, dirt, etc.
• Use plastic valve caps only. Metal capscould corrode and become difficult toremove.
WARNING
•Incorrect inflation pressure could lead to tire failure, which could cause the driverto lose control of the vehicle.
• The system cannot predict sudden tiredamage.
9
An authorized Volvo workshop is recommended.

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MAINTENANCE AND SERVICE
* Option/accessory.
580
Canceling software download
–Tap the checkbox in the activity indicator that replaced the Install button when the down-
load began.
Note that only a download can be cancelled. An installation cannot be cancelled once it hasbegun.
Deactivating the background search for software update
Automatic background searching for softwareupdates is activated as the default factory setting,but the function can be deactivated. 1. Tap
Settings in the center display's Top
view.
2. Tap
SystemDownload Center.
3. Tap to deselect
Auto Software Update.
Related information
• Download Center (p. 579)
• Internet-connected vehicle
* (p. 507)
• Navigating in the center display's views (p. 117)
Vehicle status
The vehicle's general status can be displayed in the center display along with the option to schedule service 3
.
The Car status app is started
from the center display's App view and has four tabs:
•Messages - status messages
•
Status - engine oil level check
•
TPMS - tire inflation pressure check
•
Appointments - appointment information
and vehicle information 3
.
Related information
• Handling messages saved from the instru- ment panel (p. 109)
• Checking and filling engine oil (p. 588)
• Tire pressure monitoring system
* (p. 537)
• Scheduling service and repairs (p. 580)
• Sending vehicle information to the workshop(p. 582)
• Navigating in the center display's views(p. 117)
Scheduling service and repairs4
This service offers a convenient way to schedule service and workshop appoints directly from thevehicle.
When it is time for service, and in certain cases if the vehicle requires repairs, a message will bedisplayed in the instrument panel and at the topof the center display. The time for service isdetermined by how much time has elapsed, thenumber of hours the engine has run, or the dis-tance driven since the last service.
To use the service
• Create a Volvo ID and register the Volvo IDto the vehicle.
• To select a Volvo retailer you would like tocontact, go to www.volvocars.com and log in.
• To send and receive appointment informa-tion, the vehicle must be connected to the Internet 5
.
Book serviceWhen you schedule service from your vehicle, theinformation is sent via your Internet connection 5
.
Submit an appointment request whenever you need service or when a message regarding theneed for service or repairs has been displayed in
3 Certain markets only.
4 Certain markets only.
5 There may be a charge for transmitting data over the Internet, depending on your service plan.

INDEX
661
tire sealing 550
Tread depth 549
tread wear indicator 531
winter tires 549
Tire sealing system 551
Tire tread 531
Tools 542Top tether anchors (child restraint sys- tems) 72
Total airing function 237, 255
Towbar 448 removable, attaching, installing, mount-
ing 448
removable, removing, detaching 448
Towing 453
Towing capacity and towball load 642
Towing eyelet 454
TPMS - Tire Pressure Monitoring System 537
Traction control 272
Traffic information 471
Trailer 451 driving with a trailer 449
Lamps 452
swaying 451
Trailer Stability Assist 451 trailer 451
Trailer stabilizer 272 Trailer towingtrailer hitch 448
Transmission 417 automatic 418
Transmission fluid grade 645
Travel Link 480 Fuel 483
Notifications 482
Sports 484
weather 481
Tread depth 531, 549
Tread wear indicator 531
Trip computer 89, 91
Trip odometer 89
Trip odometer resetting 92
Trip statistics 92 Troubleshooting Adaptive Cruise Control 305
Troubleshooting the camera sensor 330
TSA - Trailer Stability Assist 272, 451
Tunnel detection 157
Turn off engine 406
Turn signals 160Type approval radar system 328
U
Uniform Tire Quality Grading 534
Units 134
Unknown vehicle component 268Unlockingsettings 240
with key blade 249
USB socket for connecting media 492
V
Vehicle care 620, 621, 623, 624, 625, 626
leather upholstery 618
Vehicle Event Data 33 Vehicle functions in the center display 124
Vehicle key bat. low 242 Vehicle modem connecting vehicle to Internet 510
settings 511
Vehicle recovery 455