2017 VOLVO XC90 T8 ABS

WHEELS AND TIRES
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485
Installing a wheel
It is important to install wheels properly.
1. Clean the contact surfaces on the wheel and hub.
2. Lift the wheel and place it on the hub.
3. Install the wheel bolts and tighten hand-tight. Using the lug wrench, tighten crosswise until all bolts are snug.
4. Lower the vehicle to the ground and alter- nately tighten the bolts crosswise to103 ft. lbs. (140 Nm).
5. Press the plastic covers onto the wheel bolts.
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.
Related information
•Wheel bolts (p. 483)
• Jack (p. 482)
Tire Pressure Monitoring System (TPMS) TPMS provides a warning if inflation pressure in one or more tires is too low. It also uses a sym-bol (called a telltale) that will flash for60 seconds and then glow steadily if there is asystem malfunction.
TPMS uses the rotational speed of the tires in combination with signal analysis of the ABS sen-sor signals to determine if they are properly infla-ted. When a tire is under-inflated, its diameter(and consequently also its rotational speed)changes. By comparing the individual tires witheach other it is possible to determine if one ormore tires are under inflated. If inflation pressureis too low, an indicator symbol will illuminate inthe instrument panel and a text message will bedisplayed.
Symbol
Explanation
The symbol illuminates to indicate low tire inflation pressure. If a malfunction occurs in the sys- tem, the tire pressure warning sym-bol will flash for approximately1 minute and then remain illumi-nated.
Each tire, including the spare (if provided), should be checked monthly when cold and inflated to

MAINTENANCE AND SERVICING
501
Keep in mind that a download can be cancelled but an installation that has already begun cannotbe interrupted.
Allowing background searches or
software updates
This function can be deactivated from the centerdisplay:
1. Go to the Settings in the center display's Top view and select
Download Center.
2. Tap
SystemDownload Center.
3. Tap to deselect
Auto Software Update.
If an update is available,
New software updates
available will appear in the center display's sta-
tus bar. Tap the message to start a download app in Home view's lower sub-view. As soon as the download app has started, an icon in the
System
updates button will indicate the number of
downloads available.
Related information
• Center display overview (p. 33)
• Navigating in the center display's views (p. 43)
Remote updates With the vehicle connected to the Internet, updates for a number of the vehicle's systemscan be downloaded from the center display.
The Download Center app is
started from the center dis- play's App view and makes itpossible to:
• search for and update system software
• update the Sensus Navigation maps
• download, update and uninstall apps
Related information
•Downloading, updating and uninstalling apps (p. 461)
• System updates (p. 500)
Vehicle status
The vehicle's general status can be displayed in the center display along with the possibility to book service 1
The Car status app is started
in the center display's App view and has three tabs:
•Messages: stored messages
•
Status: tire pressure and engine oil level
•
Appointments: booking service or repairs 1
Related information
•
Using the center display (p. 49)
• Booking service and repairs (p. 502)
• Checking tire inflation pressure (p. 487)
• Checking and refilling engine oil (p. 536)
1
Certain markets only.

MAINTENANCE AND SERVICING
506
Start battery
The vehicle's electrical system is single pole and uses the body and engine block as conductors. The start (main) battery is used to power electri- cal components and systems. However, thehybrid battery is used to start the gasolineengine. The start battery should only be replaced by a trained and qualified Volvo service technician.
The start battery is an Absorbed Glass Mat (AGM) 12-volt battery that is dimensioned foruse in vehicles to support electrical systems andfunctions and regenerative charging. The service life of a battery is affected by factors such as driving conditions/style, the number ofstarts, climate, etc. Extreme cold may also furtherdecrease the battery

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MAINTENANCE AND SERVICING
508
WARNING
In certain models, the battery is held in place by a strap. Ensure that this strap is alwayssecurely fastened and pulled taut.
• When replacing the start battery an Absorbed Glass Mat (AGM) must be used.
• When replacing the start battery, a new bat-tery with the same specifications and dimen-sions must be used. The battery should onlybe replaced by a trained and qualified Volvoservice technician.
Related information
•
Jump starting (p. 382)
• Hybrid battery (p. 508)
• Charging the hybrid battery (p. 403)
• Battery symbols (p. 509)
Hybrid battery
The vehicle's electric motor is powered by a rechargeable, maintenance-free, lithium-ionhybrid battery.
The vehicle cannot be started if the hybrid battery is completely discharged.
WARNING
The vehicle's hybrid battery may only be serv- iced or replaced by a trained and qualifiedVolvo service technician.
Battery coolantThe hybrid battery's cooling system has its own expansion tank.
Filling the hybrid battery's cooling system should only be done by a trained and qualified Volvoservice technician.
Related information
• Charging the hybrid battery (p. 403)

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MAINTENANCE AND SERVICING
* Option/accessory.
514
Function [A]
– –
Horn 20
Alarm siren* 5
Brake system control module (valves, parking brake) 40
Windshield wipers 30
Tailgate window washer 25
Heated windshield
*, passenger
side 40
– –
Brake system control module (ABS pump)
40
– –
Heated windshield
*, passenger
side Shunt
Feed when ignition is switched on to: engine control module,transmission components, elec-trical power steering, centralelectrical module 5
Exterior vehicle sound (certain markets)
5
Function
[A]
Passenger side headlight 7,5
– –
– –
– –
Air bags; Occupant Weight Sen- sor (OWS) 5
Driver side headlight Driver's side headlight, certain LED models7.5
15
Accelerator pedal sensor 5
Transmission control module; Gear selector control module 15
Engine control module 5
– –
– –
– –
– –
Engine control module; Actuator; Turbo-charger valve20
Function
[A]
Solenoids; Valves; Engine cool- ing system thermostat 10
Vacuum regulators; Valve 7.5
Spoiler shutter control module; Radiator shutter control module;Fuel leakage detection 5
– –
Heated oxygen sensors (front and rear)
15
Oil pump solenoid; A/C mag- netic coupling; heated oxygensensor (center)15
– –
Engine control module 20
Ignition coils; Spark plugs 15
– –
– –
Transmission oil pump control module
30
Vacuum pump control module 40
Transmission actuator 25

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MAINTENANCE AND SERVICING
* Option/accessory.
544
CAUTION
• Avoid waxing or polishing plastic or rub- ber components
• Polishing chromed strips can wear awayor damage the surface
• Polishes containing abrasive substancesshould not be used
Related information
• Paint damage (p. 547)
• Corrosion protection (p. 547)
• Polishing and waxing (p. 549)
• Windshield wipers in the service position (p. 537)
Cleaning the interior
Only use cleaning agents and car care products recommended by Volvo. Clean regularly and fol-low the instructions included with the car careproduct.
CAUTION
• Under no circumstances should gasoline, naphtha or similar cleaning agents beused on the plastic or the leather sincethese can cause damage.
• Take extra care when removing stainssuch as ink or lipstick since the coloringcan spread.
• Use solvents sparingly. Too much solventcan damage the seat padding.
• Start from the outside of the stain andwork toward the center.
• Sharp objects (e.g. pencils or pens in apocket) or Velcro fasteners on clothingmay damage the textile upholstery.
• Clothing that is not colorfast, such asnew jeans or suede garments, may stainthe upholstery.
Fabric upholstery and ceiling linerClean with soapy water or a detergent. For more difficult spots caused by oil, ice cream, shoe pol-ish, grease, etc., use a clothing/fabric stainremover. Consult your Volvo retailer.
Leather
* careVolvo's leather upholstery is manufactured with aprotectant to repel soiling. Over time, sunlight,grease and dirt can break down the protection.Staining, cracking, scuffing, and fading can result. Volvo offers an easy-to-use, non-greasy leather care kit formulated to clean and beautify yourvehicle's leather, and to renew the protectivequalities of its finish. The cleaner removes dirtand oil buildup. The light cream protectantrestores a barrier against soil and sunlight. Volvo also offers a special leather softener that should be applied after the cleaner and protec-tant. It leaves leather soft and smooth, andreduces friction between leather and other fin-ishes in the vehicle. Volvo recommends cleaning, protecting and con- ditioning your vehicle's leather two to four times ayear. Ask your Volvo retailer about Leather CareKit 951 0251 and Leather Softener 943 7429.
Cleaning leather upholstery
1. Pour leather cleaner on a damp sponge and
squeeze it until the cleaner foams.
2. Apply the foam to the stain by moving the sponge with circular movements.
3. Dampen the stain thoroughly with the sponge. Let the sponge absorb the stain, do not rub.
4. Dry the stain with soft paper towels or a towel, and allow the leather to dry completely.

MAINTENANCE AND SERVICING
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* Option/accessory.545
Protecting leather upholstery
1. Put a small amount of protectant cream on a
cloth and apply a thin coating of cream to the upholstery with light circular movements.
2. Allow the leather to dry for 20 minutes. This will help the leather resist staining and pro- tect against sunlight's harmful UV rays.
Cleaning a leather-covered steering
wheel
• Remove soil, dust, etc., with a damp spongeand a neutral soap solution.
• Leather should be allowed to breath. Nevercover the steering wheel with a plastic pro-tector.
• Volvo recommends cleaning, protecting andconditioning the steering wheel with Volvo'sLeather Care Kit 951 0251 and LeatherSoftener 943 7429.
If there are stains on the steering wheel: Type 1 (ink, wine, coffee, milk, sweat or blood)
–Use a soft cloth or sponge. Wipe the wheel with a solution with 5% ammonia. For bloodstains, mix approx. 1 cup (2 dl) of water andone ounce (25g) of salt and wipe the stain.
Type 2 (fat, oil, sauces, or chocolate)
1. Same procedure as for type I stains.
2. Finish by rubbing the wheel with absorbent paper or a towel. Type 3
(dry soil or dust)
1. Remove the soil/dust with a soft brush.
2. Same procedure as for type I stains.
CAUTION
Sharp objects, such as rings, could damage the leather on the steering wheel.
Leather panels *Leather should be allowed to breath. Never cover the upper side of the dashboard or door panelswith a plastic protector. Ask your Volvo retailerabout Leather Care Kit 951 0251 and LeatherSoftener 943 7429.
Spots on interior plastic, metal, or wood
surfaces
Cleaning interior plastic components should bedone with a moist microfiber cloth. Consult yourVolvo retailer.
CAUTION
• Do not use cleaning agents with high alcohol content such as washer fluid toclean instrument panel glass.
• Never spray cleaning agents or waterdirectly onto components with electricalbuttons or controls. Clean components ofthis type by applying the cleaning agent/water sparingly to a cloth and wiping thecomponents so that no liquid penetratesinto these components.
Cleaning the seat beltsClean only with lukewarm water and a mild soap solution.
Cleaning floor matsThe floor mats should be vacuumed or brushedclean regularly, especially during winter whenthey should be taken out for drying. Spots on tex-tile mats can be removed with a mild detergent.For best protection in winter, Volvo recommendsthe use of Volvo rubber floor mats. Consult yourVolvo retailer.