2018 VOLVO S90 run flat

||
SAFETY
52
Rear seat
The rear seat belt reminder has two functions:• To indicate which seat belts are buckled in the rear seats. This will also be displayed inan instrument panel graphic.
• To provide audio and visual reminders if anyseat belt in the rear seat is removed whilethe vehicle is in motion. The reminder willstop when the seat belt has been rebuckled.
Door/hood/trunk lid and fuel filler door
reminder
If the hood, trunk lid, fuel filler door or any door isnot properly closed, this will be indicated by agraphic in the instrument panel. Stop the vehiclesafely and close the open door, hood, etc.
If the vehicle is moving at a speedunder approx. 10 km/h (6 mph), theinformation symbol will illuminate in theinstrument panel.
If the vehicle is moving at a speed above approx. 10 km/h (6 mph), thewarning symbol will illuminate in theinstrument panel.
Related information
•Seat belts (p. 47)
• Buckling and unbuckling seat belts (p. 48)
Airbags
The vehicle is equipped with airbags and inflat- able curtains for the driver and passengers.
WARNING
• If the airbag warning light stays on after the engine has started or if it illuminateswhile you are driving, have the vehicleinspected by a trained and qualified Volvoservice technician as soon as possible.
• Never attempt to alter or repair any of thevehicle's safety systems yourself. Incor-rectly performed repairs to any systemcould impair function and lead to seriousinjury. All work on these systems shouldbe performed by a trained and qualifiedVolvo service technician.
WARNING
If your vehicle has become water-damaged in any way (e.g., soaked floor mats/standingwater on the floor of the vehicle), do notattempt to start the engine. This may causeairbag deployment, which could result in seri-ous injury. Volvo recommends towing thevehicle directly to an authorized Volvo work-shop. Before attempting to tow the vehicle:
1. Switch off the ignition for at least 10
minutes and disconnect the battery.
2. Follow the instructions for manually over- riding the shiftlock system.
Deployed airbags
WARNING
If any of the airbags have deployed:
• Do not attempt to drive the vehicle. Have it towed to an authorized workshop.
• If necessary, seek medical attention.
Related information
•
Safety (p. 42)
• Driver/passenger-side airbags (p. 53)
• Side airbags (p. 59)
• Inflatable curtain (p. 60)

||
SAFETY
64
WARNING
•Do not use child safety seats or child booster cushions/backrests in the frontpassenger's seat. We also recommendthat children under 140 cm (4 feet7 inches) in height who have outgrownthese devices sit in the rear seat with theseat belt fastened.
• Sedan models: Keep vehicle doors andtrunk locked and keep remote controlsout of a child's reach. Unsupervised chil-dren could lock themselves in an opentrunk and risk injury. Children should betaught not to play in vehicles.
• On hot days, the temperature in the vehi-cle interior can rise very quickly. Exposureto these high temperatures for even ashort period of time can cause heat-rela-ted injury or death. Small children are par-ticularly at risk. Never leave children unat-tended in a vehicle.
Child seats should always be registered.
Volvo's recommendationsWhy does Volvo believe that no child should sit inthe front seat of a vehicle? It's quite simple really.A front airbag is a very powerful device designed,by law, to help protect an adult. Because of the size of the airbag and its speedof inflation, a child should never be placed in thefront seat, even if he or she is properly belted orstrapped into a child safety seat. Volvo has beenan innovator in the field of safety since it wasfounded. And we have no intention of resting onour laurels. But we need your help. Pleaseremember to put your children in the back seat,and buckle them up.
WARNING
A child restraint should never be reused if:
• The vehicle has been involved in a colli- sion, no matter how minor
• Its history is unknown
• It is older than the manufacturer's expira-tion date
Volvo has some very specific
recommendations
•Always wear your seat belt.
• Airbags are a SUPPLEMENTAL safety device which, when used with a three-pointseat belt can help reduce serious injuriesduring certain types of accidents. Volvo rec-ommends that you do not disconnect the air-bag system in your vehicle.
• Volvo strongly recommends that everyone inthe vehicle be properly restrained. •
Volvo recommends that ALL occupants(adults and children) shorter than 140 cm(4 feet 7 inches) be seated in the rear seatof any vehicle with a front passenger side air-bag.
• Drive safely!
Related information
•Safety (p. 42)
• Child restraints (p. 65)
• Activating and deactivating child safety locks(p. 250)

WHEELS AND TIRES
}}
511
Tread wear indicatorThe tread wear indicator shows the status of the tire's tread.
The tread wear indicator is a narrow elevated strip running across the tire's longitudinal treadgrooves. The letters TWI (Tread Wear Indicator)are visible on the side of the tire. When approxi-mately 1.6 mm (1/16 inch) is left on the tread,the tread will be at the same height as the treadwear indicator. Replace the tire as soon as possi-ble. Tires with low tread offer very poor traction inrain or snow.
Related information
• Tires (p. 508)
Tire terminology The following is a glossary of tire-related terms.
The tire suppliers may have additional markings, notes or warnings such as standard load, radialtubeless, etc.
• Tire information placard
: A placard show-
ing the OE (Original Equipment) tire sizes,recommended inflation pressure, and themaximum weight the vehicle can carry.
• Tire Identification Number (TIN)
: A number
on the sidewall of each tire providing infor-mation about the tire brand and manufactur-ing plant, tire size and date of manufacture.
• Inflation pressure
: A measure of the
amount of air in a tire.
• Standard load
: A class of P-metric or Metric
tires designed to carry a maximum load at 35psi [37 psi (2.5 bar) for Metric tires]. Increas-ing the inflation pressure beyond this pres-sure will not increase the tires load carryingcapability.
• Extra load
: A class of P-metric or Metric
tires designed to carry a heavier maximumload at 41 psi [43 psi (2.9 bar) for Metrictires]. Increasing the inflation pressurebeyond this pressure will not increase thetire's load carrying capability.
• kPa
: Kilopascal, a metric unit of air pressure.
• PSI
: Pounds per square inch, a standard unit
of air pressure. •
B-pillar
: The structural member at the side
of the vehicle behind the front door.
• Bead area of the tire
: Area of the tire next
to the rim.
• Sidewall of the tire
: Area between the bead
area and the tread.
• Tread area of the tire
: Area of the perime-
ter of the tire that contacts the road whenmounted on the vehicle.
• Rim
: The metal support (wheel) for a tire or a
tire and tube assembly upon which the tirebeads are seated.
• Maximum load rating
: a figure indicating
the maximum load in pounds and kilogramsthat can be carried by the tire. This rating isestablished by the tire manufacturer.
• Maximum permissible inflation pressure
:
the greatest amount of air pressure thatshould ever be put in the tire. This limit is setby the tire manufacturer.
• Recommended tire inflation pressure
:
inflation pressure, established by Volvo,which is based on the type of tires that aremounted on a vehicle at the factory. Thisinformation can be found on the tire inflationplacard(s) located on the driver's side B-pillarand in the tire inflation table in this chapter.
• Cold tires
: The tires are considered to be
cold when they have the same temperatureas the surrounding (ambient) air. This tem-

||
WHEELS AND TIRES
512perature is normally reached after the vehicle has been parked for at least 3 hours.
Related information
•
Tires (p. 508)
Tire sidewall designations
The following information can be found on a tire's sidewall.
Federal law mandates that tire manufacturers place standardized information on the sidewall ofall tires (see the illustration). The vehicle has been certified with certain combi- nations of wheels and tires. The following information is listed on the tire sidewall: The tire designation:
NOTE
Please be aware that the following tire desig- nation is an example only and that this par-
ticular tire may not be available on your vehi- cle.
1. 215 : the width of the tire (in millimeters)
from sidewall edge to sidewall edge. The larger the number, the wider the tire.
2. 65: The ratio of the tire's height to its width
in percent.
3. R: Radial tire (the designation RF and the
symbol indicate that the vehicle is
equipped with optional self-supporting run flat tires 3
.
4. 15: The diameter of the wheel rim (in
inches).
5. 95: The tire's load index. In this example, a
load index of 95 equals a maximum load of 1521 lbs (690 kg).
6. H: The tire's speed rating, or the maximum
speed at which the tire is designed to bedriven for extended periods of time, carryinga permissible load for the vehicle, and withcorrect inflation pressure. For example, Hindicates a speed rating of 210 km/h(130 mph).
3 Self-supporting run flat tires may not be available on all models.

WHEELS AND TIRES
}}
* Option/accessory.519
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..

||
WHEELS AND TIRES
* Option/accessory.
520
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. 517)
• Adjusting tire pressure (p. 516)
• Viewing tire pressure status in the center display
* (p. 520)
• Action when warned of low tire pressure (p. 521)
• Tire pressure monitoring system
* (p. 517)
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.
522
Related information
• Recommended tire pressure (p. 517)
• Adjusting tire pressure (p. 516)
• Calibrating the tire pressure monitoring sys- tem
* (p. 519)
• Viewing tire pressure status in the centerdisplay
* (p. 520)
• Tire pressure monitoring system
* (p. 517)
• Inflate tires with the compressor included in the tire sealing system (p. 535)
When changing wheels
The wheels can be changed, e.g. to switch to snow tires or spare tires. Follow the applicableinstructions for removing and installing thewheel.
Changing to tires of another dimensionMake sure that the tire dimension is approved for use on the vehicle. If you change to tires of another dimension, con- tact an authorized Volvo workshop to update thevehicle's software. A software update may benecessary when changing to tires of larger/smaller dimensions or when changing to or fromsnow tires.
Related information
• Removing a wheel (p. 524)
• Installing a wheel (p. 526)
• Tool kit (p. 522)
• Snow tires (p. 529)
• Spare wheel (p. 527)
• Wheel bolts (p. 523)
Tool kit Tools for e.g. towing or changing wheels are provided in the vehicle's trunk.
The foam block under the cargo compartment floor contains the towing eyelet, the tire sealingsystem, the tool for removing plastic wheel boltcovers and the tool for removing the lockingwheel bolts. If the vehicle is equipped with a spare wheel
*10
, a
jack, lug wrench, and a package with disposable gloves and a bag for the damagedwheel are also provided.
Related information
• When changing wheels (p. 522)
• Jack
* (p. 523)
10
Not available on all models.

WHEELS AND TIRES
}}
* Option/accessory.523
Jack*
The jack can be used to lift the vehicle to e.g. change a wheel.
The illustration is generic – the design may vary.
CAUTION
• When not in use, the jack
* should be kept
in its storage compartment under the cargo compartment floor.
• The jack provided with your vehicle isintended to be used only in temporary sit-uations such as changing wheels in theevent of a flat tire. Only the jack thatcame with your particular model shouldbe used to lift the vehicle. If the vehicleneeds to be lifted more frequently or for aprolonged period, using a garage jack orhoist is recommended. Always follow thisdevice's instructions for use.
The jack needs to be cranked together to the correct position in order to fit.
Models with leveling control
*
If the vehicle is equipped with the optional pneu- matic suspension, it must be turned off beforethe vehicle is lifted on a jack.
Related information
•Tool kit (p. 522)
Wheel bolts
The wheel bolts hold the wheel in place on the wheel hub.
CAUTION
The wheel bolts should be tightened to 140 Nm (103 ft. lbs.). Over-tightening orunder-tightening could damage the threadedjoints.
Only use rims that have been tested and approved by Volvo and are included in Volvo'soriginal product range. Use a torque wrench to check that the wheel bolts are tightened correctly. Do not grease the wheel bolt threads.
WARNING
The wheel bolts may need to be tightened again several days after a wheel change.Temperature fluctuations and vibrations cancause them to loosen slightly.
Locking wheel bolts *A tool for removing the locking wheel bolts is located in the foam block under the cargo com-partment floor.