2018 VOLVO S90 T8 four wheel drive

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PRACTICAL INFORMATION
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NOTE
The tire's load index and speed rating may not appear on the sidewall because they arenot required by law.
7.M+S or M/S = Mud and Snow, AT = All Ter-
rain, AS = All Season
8. U.S. DOT Tire Identification Number (TIN) : This begins with the letters "DOT" and
indicates that the tire meets all federalstandards. The next two numbers or lettersare the plant code where it was manufac-tured, the next two are the tire size code andthe last four numbers represent the weekand year the tire was built. For example,1510 means that the tire was manufacturedduring week 15 of 2010. The numbers inbetween are marketing codes used at themanufacturer's discretion. This informationhelps a tire manufacturer identify a tire forsafety recall purposes.
9. Tire Ply Composition and Material Used :
Indicates the number of plies indicates or thenumber of layers of rubber-coated fabric inthe tire tread and sidewall. Tire manufactur-ers also must indicate the ply materials in thetire and the sidewall, which include steel,nylon, polyester, and others.
10. Maximum Load : Indicates the maximum
load in pounds and kilograms that can becarried by the tire. Refer to the vehicle's tire information placard located on the B-Pillarfor the correct tire pressure for your vehicle.
11. Treadwear, Traction, and Temperaturegrades .
12. Maximum permissible inflation pressure: the greatest amount of air pressure that should ever be put in the tire. This limit is setby the tire manufacturer.
Speed SymbolA tire's Speed Symbol (SS) indicates the maxi-mum speed for which the tire has been certifiedand should be at least equivalent to the vehicle'stop speed. Winter tires, with our without studs, are excep- tions and may use a lower SS. When winter tiresare installed, the vehicle may not be driven fasterthan the tires' SS. The vehicle's speed should always be determined by the posted speed limit and traffic and roadconditions, not the tire's SS. The following table indicates the maximum per- missible speed for each SS.
Speed Symbol
M 81 mph (130 km/h)
Q 100 mph (160 km/h)
T 118 mph (190 km/h)
Speed Symbol
H 130 mph (210 km/h)
V 149 mph (240 km/h)
W 168 mph (270 km/h)
Y 186 mph (300 km/h)
WARNING
• The wheel and tire sizes for your Volvo are specified to meet stringent stabilityand handling requirements. Unapprovedwheel/tire size combinations can nega-tively affect your vehicle's stability andhandling.
• Any damage caused by installation ofunapproved wheel/tire size combinationswill not be covered by your new vehiclewarranty. Volvo assumes no responsibilityfor death, injury, or expenses that mayresult from such installations.

PRACTICAL INFORMATION
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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/re-inflate the tire(s) assoon as possible. Calibrate TPMS after re-inflat-ing the 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 22 mph (35 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. 106)
• Reinflating tires equipped with the TirePressure Monitoring System (TPMS)(p. 105)
• Tire Pressure Monitoring System (TPMS)(p. 103)
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.
Symbol
Explanation
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".

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 ofthe driver's door opening) or the inflationpressure table in your printed owner's manualsupplement.
Tire inflation placard
3. Start the engine. 4.Open the
Car status app in the center dis-
play's App view.
5. Tap TPMS to access Tire Pressure
Monitoring System.
6. Tap Calibrate.
7. Tap
OK 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 vehicleis driven at a speed of at least 22 mph(35 km/h) and will be interrupted if thevehicle is parked and the engine isswitched off. Calibration continues auto-matically in the background when drivingresumes.
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 steps1-8.
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 placard or tire inflation pressuretable. 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.