Page 484 of 584

WHEELS AND TIRES
482
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 numberon the sidewall of each tire providing infor-mation about the tire brand and manufactur-ing plant, tire size and date of manufacturer.
•Inflation pressure: A measure of theamount of air in a tire.
•Standard load: A class of P-metric or Metrictires designed to carry a maximum load at35 psi [37 psi (2.5 bar) for Metric tires].Increasing the inflation pressure beyond thispressure will not increase the tires load car-rying capability.
•Extra load: A class of P-metric or Metrictires 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 unitof air pressure.
•B-pillar: The structural member at the sideof the vehicle behind the front door.
•Bead area of the tire: Area of the tire nextto the rim.
•Sidewall of the tire: Area between the beadarea 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 atire and tube assembly upon which the tirebeads are seated.
•Maximum load rating: a figure indicatingthe 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 becold when they have the same temperatureas the surrounding (ambient) air. This tem-
perature is normally reached after the vehiclehas been parked for at least 3 hours.
Page 486 of 584

WHEELS AND TIRES
484
Loading specifications
Properly loading your vehicle will provide maxi-mum return of vehicle design performance.
Weight designations
Before loading your vehicle, familiarize yourselfwith the following terms for determining yourvehicle's weight ratings, with or without a trailer,from the vehicle's Federal/Canadian Motor Vehi-cle Safety Standards (FMVSS/CMVSS) label, andthe vehicle's tire information placard:
Curb weight
The weight of the vehicle including a full tank offuel and all standard equipment. It does notinclude passengers, cargo, or optional equipment.
Capacity weight
All weight added to the curb weight, includingcargo and optional equipment. When towing,trailer hitch tongue load is also part of cargoweight.
Permissible axle weight
The maximum allowable weight that can be car-ried by a single axle (front or rear). These num-bers are shown on the Federal/Canadian MotorVehicle Safety Standards (FMVSS/CMVSS) label.The total load on each axle must never exceed itsmaximum permissible weight.
Gross vehicle weight (GVW)
The vehicle's curb weight + cargo + passengers.
Steps for Determining Correct Load
Limit
1. Locate the statement "the combined weightof occupants and cargo should never exceedXXX kg or XXX lbs." on your vehicle's plac-ard.
2. Determine the combined weight of the driverand passengers that will be riding in yourvehicle.
3. Subtract the combined weight of the driverand passengers from XXX kg or XXX lbs.
4. The resulting figure equals the availableamount of cargo and luggage load capacity.For example, if the "XXX" amount equals1400 lbs. and there will be five 150 lb. pas-sengers in your vehicle, the amount of availa-ble cargo and luggage load capacity is650 lbs. (1400 – 750 (5 × 150) = 650 lbs.)
5. Determine the combined weight of luggageand cargo being loaded on the vehicle. Thatweight may not safely exceed the availablecargo and luggage load capacity calculatedin Step 4.
6. If your vehicle will be towing a trailer, loadfrom your trailer will be transferred to yourvehicle. Consult this manual to determinehow this reduces the available cargo and lug-gage load capacity of your vehicle.
WARNING
•Exceeding the permissible axle weight,gross vehicle weight, or any other weightrating limits can cause tire overheatingresulting in permanent deformation orcatastrophic failure.
•Do not use replacement tires with lowerload carrying capacities than the tires thatwere original equipment on the vehiclebecause this will lower the vehicle's GVWrating. Use only tires with the correct loadcarrying capacity. Consult your Volvoretailer for information.
Related information
•Label information (p. 558)
•Weights (p. 563)
Page 523 of 584
![VOLVO XC90 TWIN ENGINE HYBRID 2017 Owners Manual MAINTENANCE AND SERVICING
}}
* Option/accessory, for more information, see Introduction.521
Function[A]
Horn20
Alarm siren*5
Brake system control module(valves, parking brake)40
Windshield wipers30
Ta VOLVO XC90 TWIN ENGINE HYBRID 2017 Owners Manual MAINTENANCE AND SERVICING
}}
* Option/accessory, for more information, see Introduction.521
Function[A]
Horn20
Alarm siren*5
Brake system control module(valves, parking brake)40
Windshield wipers30
Ta](/manual-img/45/59300/w960_59300-522.png)
MAINTENANCE AND SERVICING
}}
* Option/accessory, for more information, see Introduction.521
Function[A]
Horn20
Alarm siren*5
Brake system control module(valves, parking brake)40
Windshield wipers30
Tailgate window washer25
Heated windshield*, passengerside40
––
Brake system control module(ABS pump)40
––
Heated windshield*, passengersideShunt
Feed when ignition is switchedon to: engine control module,transmission components, elec-trical power steering, centralelectrical module
5
Exterior vehicle sound (certainmarkets)5
Passenger side headlight7,5
Function[A]
––
––
––
Air bags; Occupant Weight Sen-sor (OWS)5
Driver side headlight7.5
Accelerator pedal sensor5
Transmission control module;Gear selector control module15
Engine control module5
––
––
––
––
Engine control module; Actuator;Turbo-charger valve20
Solenoids; Valves; Engine cool-ing system thermostat10
Vacuum regulators; Valve7.5
Function[A]
Spoiler shutter control module;Radiator shutter control module;Fuel leakage detection
5
––
Heated oxygen sensors (frontand rear)15
Oil pump solenoid; A/C mag-netic coupling; heated oxygensensor (center)
15
––
Engine control module20
Ignition coils; Spark plugs15
––
––
Transmission oil pump controlmodule30
Vacuum pump control module40
Transmission actuator25
––
Page 541 of 584

MAINTENANCE AND SERVICING
}}
539
Opening and closing the hood
The hood is opened by releasing it from the pas-senger compartment and then by using the han-dle under the front edge of the hood.
Opening
With the hood completely closed, pull thecontrol (located to the left of the brakepedal).
Turn the handle under the front edge of thehood counterclockwise to release it from thelock and lift.
Warning–hood not closed
When the hood lock has been com-pletely released, this symbol and agraphic will illuminate in the instrumentpanel and an audible signal will begiven. If the vehicle begins to roll, the audible sig-nal will be repeated several times.
For additional information about this symbol, seealso the article "Door and seat belt reminders."
NOTE
If the warning symbol remains on or if theaudible signal is given even if the hood iscompletely closed and locked, consult atrained and qualified Volvo service technician.
Closing
1. Press down the hood until it begins to closedue to its own weight.
2. When the handle under the front edge of thehood is in the lock, press down on the hoodto close it completely.
WARNING
•Be sure the hood is completely unob-structed while it is being closed.
•Check that the hood locks properly whenclosed. It must audibly lock on both sides.
•Never drive if the hood is not completelyclosed and locked.
•While driving, if there are any indicationsthat the hood is not locked in the closedposition, stop safely as soon as possibleand close it completely.
Page 563 of 584
SPECIFICATIONS
}}
* Option/accessory, for more information, see Introduction.561
Dimensions
The following table lists your vehicle's mostimportant dimensions.
DimensionIn.
(mm)
AGround clearance(curb weight + 2
people)A
8.9 (227)
BWheelbase117.5 (2984)
CLength194.9 (4950)
DimensionIn.
(mm)
DLoad length, floor,
seatback downB80.3 (2040)
49.6 (1260)C
ELoad length, floor21.8 (554)
30.0/35.4
(761/898)D
FHeight69.9 (1776)
DimensionIn.
(mm)
GLoad height32.1 (816)
HTrack, front (modelswithout pneumaticsuspension)
65.9 (1673)E
65.6 (1665)F
Track, front (modelswith pneumaticsuspension)
66.0 (1676)E
65.7 (1668)F
Page 565 of 584
SPECIFICATIONS
}}
563
Weights
The following table lists important weight datafor your vehicle.
CategoryUSACanada
Gross vehicle weight
7-seat, 4-cyl.
4-seat, 4-cyl.
6,635 lbs
6,140 lbs
3,010 kg
2,785 kg
Capacity weight
7-seat, 4-cyl.
4-seat, 4-cyl.
1,210 lbs
1,000 lbs
550 kg
450 kg
Permissible axle weights, front
7-seat, 4-cyl.
4-seat, 4 cyl.
3,130 lbs
2,975 lbs
1,420 kg
1,350 kg
Permissible axle weights, rear
7-seat, 4-cyl.
4-seat, 4 cyl.
3,590 lbs
3,305 lbs
1,630 kg
1,500 kg
Curb weight
7-seat, 4-cyl.
4-seat, 4 cyl.
5,010 - 5,100 lbs
5,120 - 5,130 lbs
2,270 -2,310 kg
2,320 -2,330 kg
Max. roof load220 lbs100 kg
Page 566 of 584
||
SPECIFICATIONS
564
CategoryUSACanada
Max. trailer weightsWithout brakes: 1,650 lbs
With brakes (AWD): 5,000 lbs
With brakes (FWD): 4,000 lbs
Without brakes: 750 kg
With brakes (AWD): 2,250 kg
With brakes (FWD): 1,800 kg
Max. tongue weightAWD: 500 lbs
FWD: 400 lbs
AWD: 225 kg
FWD: 180 kg
CAUTION
•When loading the vehicle, the maximumgross vehicle weight and permissible axleweights may not be exceeded.
•The maximum trailer weights listed areonly applicable for altitudes up to 3280 ft(1,000 m) above sea level. With increas-ing altitude the engine power and there-fore the car's climbing ability are impairedbecause of the reduced air density, sothe maximum trailer weight has to bereduced accordingly. The weight of thecar and trailer must be reduced by 10%for every further 3280 ft (1,000 m) (orpart thereof).
Page 567 of 584

SPECIFICATIONS
565
Air conditioning refrigerant
The air conditioning system in your car containsa CFC-free refrigerant.
A/C decal
R134a decal
Refrigerant
WeightType
2.35 lbs (1070 g)R134a
WARNING
The air conditioning system contains R134arefrigerant under pressure. Service andrepairs may only be carried out by a trainedand qualified Volvo service technician.
Compressor oil
VolumeType
4.0 fl. oz. (120 ml)PAG SP-A2
Evaporator
The A/C system' s evaporator may never berepaired or replaced with a previously used evap-orator. A new evaporator must be certified andmarked according to SAE J2842.
Related information
•Climate system service (p. 511)
Hybrid battery specifications
The hybrid battery is used to power the electricmotor for the rear wheels when the gasolineengine is not being used.
Type: lithium-ion
Power reserve: 9.2 kWh
NOTE
The capacity of the hybrid battery diminishessomewhat with age and use, which couldresult in increased use of the gasoline engineand consequently, slightly higher fuel con-sumption.
Related information
•Hybrid battery (p. 515)
•Charging the hybrid battery (p. 413)