2017 VOLVO XC90 TWIN ENGINE HYBRID battery

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NOTE
•At very low or high temperatures, some ofthe charging current is used to heat orcool the hybrid battery and the passengercompartment, which means that chargingmay take longer.
•Charging time is longer if preconditioninghas been selected. This time is primarilyaffected by the ambient temperature.
Charging coupler and charging socket
There are normally several 120-/240-volt powerconsumers in a fuse circuit, which means thatmore than one power consumer (lighting, vacuumcleaner, electric drill, etc.) may use the same fuse.
Long-term storage of a vehicle witha hybrid battery
To help keep the hybrid battery from degrading ifthe vehicle is not driven for a prolonged period(longer than 1 month), the hybrid battery chargelevel should be kept at approx. 25% accordingto the gauge in the instrument panel.
Do as follows:
1. If the hybrid battery charge level is high, drivethe vehicle until approx. 25% of the chargeremains. If the charge level is low, charge thebattery until the level is approx. 25%.
2.If the vehicle has not been driven for at least6 months or the charge level is noticeablybelow the 25% level, charge the battery upto 25% again to help compensate for naturalbattery discharge. Check the charge levelregularly using the gauge in the instrumentpanel.
See the article "Jump starting" for informationabout charging the start battery.

NOTE
•If the vehicle will not be driven for anextended period, park it in as cool a loca-tion as possible to help minimize hybridbattery aging. Park the vehicle indoors orin a shady location in the summer, which-ever is coolest.

Related information
•Jump starting (p. 395)
•Initiating hybrid battery charging (p. 412)
•Charging the hybrid battery (p. 413)

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Using the electric motor in citydriving
A number of factors affect the electric motor'sdriving range.
The driver can affect some of these factors whileothers depend on outside conditions such astemperature, road surface, etc.

Factors that determine the electric
motor's driving range
Factors outside of the driver's control
The following are examples of factors that thedriver cannot control:
•The current traffic situation
•Driving short distances
•Topography
•Ambient temperature and headwinds
•Road conditions/road surface
The following table shows the approximate rela-tionship between ambient temperature and driv-ing range using the electric motor (with reducedclimate system functionality). Warmer tempera-tures increase driving range.
77°F (25°C)105%
68°F (20°C)100%
50°F (10°C)90%
40°F (5 °C)85%
32°F (0°C)80%
23°F (-5°C)75%
14°F (-10°C)70%
Factors in the driver's control
The driver should be aware of the following fac-tors in order to utilize the vehicle's electric motormost efficiently:
•Charge the hybrid battery regularly
•Preconditioning
•The Pure drive mode
•Climate system settings
•Speed and acceleration
•Tires and inflation pressure
The following table shows the approximate rela-tionship between constant speed and drivingrange where driving at a lower constant speedhelps increase the electric motor's driving range.
62 mph (100 km/h)70%
55 mph (90 km/h)80%
50 mph(80 km/h)90%
43 mph (70 km/h)100%
37 mph (60 km/h)110%
30 mph(50 km/h)120%
NOTE
•The figures in the preceding tables per-tain to a new vehicle.
•None of the figures are absolute and areaffected by e.g., driving style, weather,traffic conditions, etc.

Driving with the electric motor
Use the Pure drive mode for the most energy-efficient driving to help maximize driving rangeusing the electric motor only.

Related information
•Driving economically (p. 385)
•Drive modes (p. 420)

STARTING AND DRIVING
* Option/accessory, for more information, see Introduction.420
Maintaining/increasing the hybridbattery's charge while driving
In certain situations, it can be useful to controlthe hybrid battery's charge level while the vehicleis being driven. The hybrid battery functionsHold and Charge while driving are available inall drive modes.

The "Hold" and "Charge" function
buttons
These functions are activated from the centerdisplay's Function view.

Hold
Battery level sustained forlater use.
This function saves the hybridbattery's charge for use at alater time such as when drivingin an urban area or residentialneighborhood. Hold is available regardless of thehybrid battery's charge level.
The vehicle will function as in normal hybrid driv-ing and will use energy from e.g., regenerativebraking to support the gasoline engine.

Charge
Engine charges hybridbattery.
This function is only available when the hybridbattery's charge level is low and can recharge thebattery up to 33%, after which the Hold functionwill be activated automatically.
Symbol in the instrument panel
The symbol will appear in the instrumentpanel when either of these functions is activated.See also the article "Hybrid-related symbols andmessages" for additional information.

Related information
•Hybrid-related symbols and messages(p. 408)
•Drive modes (p. 420)
•Using the electric motor in city driving(p. 419)
•Driving economically (p. 385)
Drive modes
Selecting a drive mode affects the vehicle's driv-ing characteristics to help make driving moreenjoyable or easier in certain types of situations.
The following systems are adapted to help pro-vide the best vehicle performance in the respec-tive drive modes:
•Steering
•Engine/transmission/All Wheel Drive*
•Brakes
•Suspension control
•Instrument panel
•Climate system settings
Select the drive mode best suited to the currentdriving conditions.
Please be aware that not all modes can beselected in all driving situations. The selectedmode will be displayed in the instrument panel.

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Selecting a drive mode
1.Press the DRIVE MODE control in the tun-nel console.
>A pop-up menu will open in the centerdisplay.
2. Roll the control upward or downward to scrollto the desired drive mode.
A drive mode can also be selected by tap-ping its button on the center display.
3. Press the control again to select it.
When a driving mode cannot be selected, one ofthe following messages may be displayed:
•Not possible to select due to gear inmanual
•Not possible to select due to low battery
•Not possible to select due to lowtemperature
•Not possible to select due to limitations
•Not possible to select due to highspeed.

Available drive modes
HYBRID
This is the default mode.
The vehicle normally starts in Hybrid mode 4. Theengine management system uses both the elec-tric motor and gasoline engine (separately or intandem) and calculates the optimal levels of per-formance, fuel consumption and comfort. Athigher speeds, ground clearance is reducedautomatically to help reduce wind resistance.
The amount of driving done using only the elec-tric motor in Hybrid mode is determined by thehybrid battery's charge level and the need forheating/cooling in the passenger compartment.
If sufficient electrical energy is available, only theelectric motor will be activated when the driverpresses the accelerator pedal up to a certainlevel. Above this level, the gasoline engine willstart.
The instrument panel gauge when both the electricmotor and gasoline engine are being used
The long needle in the gauge indicates theamount of energy that the vehicle is currentlyusing. The short white line between the "light-ning" and "oil drop" symbols indicates theamount of energy available. See also the article"General information about the XC90 T8 TwinEngine Plug-in Hybrid" for additional information.
The gasoline engine starts when the responserequired when the driver presses the acceleratorpedal cannot be provided by the electric motoralone.
The gauge also indicates when the battery isbeing recharged (regenerated) during light brak-ing. See the article "Brakes" for additional infor-mation.
4Unless the vehicle was switched off in Off Road mode. If so, it will restart in Off Road mode.

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When the hybrid battery's charge level is low, thegasoline engine will start more often to help con-serve electrical energy. Charge the battery withthe charging cable as soon as possible.

PURE
This mode activates the electric motor only withas low energy consumption as possible and thelowest possible carbon dioxide emissions.
Ground clearance will be lowered to help reducewind resistance and certain climate system func-tions will be reduced.
Pure mode is available when the hybrid battery issufficiently charged. If the level gets too low, thegasoline engine will start.
The gasoline engine will also start:
•If the vehicle's speed goes above approx.78 mph (125 km/h)
•If the driver wants more response than theelectric motor alone can provide
•If factors such as cold weather, etc., affectthe system or components
To restart the climate system functions that havebeen reduced in the mode, press the AUTO ordefroster buttons.
In order to return to full functionality for all of thesystems that may be affected by Pure mode,select another drive mode or adapt the climatesystem functions using the INDIVIDUAL mode.
OFF ROAD
This mode helps maximize the vehicle's capacityto traverse difficult terrain or poor roads.
In OFF ROAD, ground clearance is maximized,the steering is light, All Wheel Drive and HillDescent Control are activated and a compassand altimeter will be displayed in the instrumentpanel.
This drive mode can only be activated at lowspeeds (the permissible speed range will beshown on the speedometer). At higher speeds,OFF ROAD mode will be cancelled and AWD willbe activated.
This mode is not intended for normal streetdriving.

CAUTION
OFF ROAD drive mode may not be used ifthe vehicle is towing a trailer without an elec-trical connection. This could result in damageto the pneumatic suspension system's bel-lows.
Due to the increased ground clearance, if theOFF ROAD mode was selected when the enginewas switched off, it will also restart in this mode.

AWD
This mode offers improved traction using four-wheel drive and is intended primarily for low-speed driving on slippery surfaces. However, it
also helps increase directional stability at higherspeeds.
In this mode, both the electric motor and the gas-oline engine are used continuously, which resultsin higher fuel consumption.
POWER
Power mode is intended for sportier, more activedriving.
This mode maximizes the combined effects ofthe electric motor and the gasoline engine andprovides power to all four wheels. Response topressure on the accelerator pedal is more imme-diate and the transmission shifts up at higherspeeds. Steering response is also more immedi-ate, the suspension is stiffer and lower groundclearance reduces body roll when cornering.
In this mode, both the electric motor and the gas-oline engine are used continuously, which resultsin higher fuel consumption.

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* Option/accessory, for more information, see Introduction.427

Brake – B
B can be selected at any time during a drive. Inthis mode, the engine braking function is acti-vated when the accelerator pedal is released,which helps charge the hybrid battery. Thismeans that the hybrid battery is charged even ifthe brake pedal is not depressed.
B mode in the instrument panel
With B selected, manual shifting to lower gearsis possible. The gear indicator in the instrumentpanel shows the gear currently being used (1–8).
Each time the gear selector is pulled rearward,the transmission will shift down one gear.
In order to manually shift to higher gears, thevehicle must be equipped with steering wheelpaddles*.
•Press the gear selector forward to return toD mode.
For smooth shifting and engine performance, thetransmission will shift down automatically if thevehicle's speed becomes too low for the selectedgear.

Safety function
To help avoid excessive rpm that might causeengine damage, the transmission control modulehas a down-shift protection feature that in somesituations may prevent a down-shift or kickdown.
During kickdown, the transmission may shiftdown one or more gears, depending on theengine's rpm and will shift up again when max.rpm is reached for a specific gear.

Related information
•Steering wheel paddles* (p. 427)
•Shiftlock (p. 424)
•Gear shift indicator (p. 425)
Steering wheel paddles*
In addition to the manual gearshift function usingthe gear selector, the paddles make it possibleto manually shift gears from the steering wheel.
Activating the paddles
In order to shift gears with the paddles, they haveto first be activated. To do so:
–Pull either paddle toward the steering wheeland release it.
>A number in the instrument panel will indi-cate the current gear being used.
Instrument panel when the paddles are activated

Shifting
To shift one gear:
–Pull either paddle toward the steering wheeland release it.

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Emission inspection readiness
How do states use OBD II for emission
inspections?
Many states connect a computer directly to avehicle's OBD II system. The inspector can thenread "faults." In some states, this type of inspec-tion has replaced the tailpipe emission test.

How can my vehicle fail OBD II emission
inspection?
Your vehicle can fail OBD II emission inspectionfor any of the following reasons.
•If your Check Engine (MIL) light is lit, yourvehicle may fail inspection.
•If your vehicle's Check Engine light was lit,but went out without any action on your part,OBD II will still have a recorded fault. Yourvehicle may pass or fail, depending on theinspection practices in your area.
•If you had recent service that required dis-connecting the battery, OBD II diagnosticinformation may be incomplete and "notready" for inspection. A vehicle that is notready may fail inspection.

How can I prepare for my next OBD II
emission inspection?
•If your Check Engine (MIL) light is lit – or waslit but went out without service, have your
vehicle diagnosed and, if necessary, servicedby a qualified Volvo technician.
•If you recently had service for a lit CheckEngine light, or if you had service thatrequired disconnecting the battery, a periodof driving is necessary to bring the OBD IIsystem to "ready" for inspection. Two half-hour trips of mixed stop-and-go/highwaydriving are typically needed to allow OBD II toreach readiness. Your Volvo retailer can pro-vide you with more information on planning atrip.
•Maintain your vehicle in accordance with yourvehicle's maintenance schedule.
Owner maintenance
Periodic maintenance requirements and intervalsare described in your vehicle's Warranty andService Records Information booklet.
The following points can be carried out betweenthe normally scheduled maintenance services.

Each time the car is refueled:
•Check the engine oil level.
•Clean the windshield, windshield wipers,headlights, and taillights.
Monthly:
•Check cold tire pressure in all tires. Inspectthe tires for wear.
•Check that engine coolant and other fluidlevels are between the indicated "min" and"max" markings.
•Clean interior glass surfaces with a glasscleaner and soft paper towels.
•Wipe driver information displays with a softcloth.
•Visually inspect battery terminals for corro-sion. Corrosion may indicate a loose terminalconnector, or a battery near the end of itsuseful service life. Consult your Volvo retailerfor additional information.

As needed:
Wash the car, including the undercarriage, toreduce wear that can be caused by a buildup ofdirt, and corrosion that can be caused by salt res-idues.
Clean leaves and twigs from air intake vents atthe base of the windshield, and from other placeswhere they may collect.

NOTE
Complete service information for qualifiedtechnicians is available online for purchase orsubscription at www.volvotechinfo.com.

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Start battery
The vehicle's electrical system is single pole anduses 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 atrained 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.
The service life of a battery is affected by factorssuch as driving conditions/style, the number ofstarts, climate, etc. Extreme cold may also furtherdecrease the battery