2017 VOLVO XC90 TWIN ENGINE HYBRID ECO mode

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Driving with a trailer
When towing a trailer, always observe the legalrequirements of the state/province.
•All Volvo models are equipped with energy-absorbing shock-mounted bumpers. Trailerhitch installation should not interfere with theproper operation of this bumper system.
Trailer towing does not normally present any par-ticular problems, but take into consideration:
•Increase tire pressure to recommended fullpressure.
•When your vehicle is new, avoid towing heavytrailers during the first 620 miles (1,000 km).
•Maximum speed when towing a trailer:50 mph (80 km/h).
•Engine and transmission are subject toincreased loads. Therefore, engine coolanttemperature should be closely watched whendriving in hot climates or hilly terrain. Use alower gear and turn off the air conditioner ifthe temperature gauge needle enters the redrange.
•If the automatic transmission begins to over-heat, a message will be displayed in the textwindow.
•Avoid overload and other abusive operation.
•Hauling a trailer affects handling, durability,and economy.
•It is necessary to balance trailer brakes withthe towing vehicle brakes to provide a safestop (check and observe state/local regula-tions).
•Do not connect the trailer's brake systemdirectly to the vehicle's brake system.
•More frequent vehicle maintenance isrequired.
•Remove the ball holder when the hitch is notbeing used.

NOTE
•When parking the vehicle with a trailer ona hill, apply the parking brake before put-ting the gear selector in P. Always followthe trailer manufacturer's recommenda-tions for wheel chocking.
•When starting on a hill, put the gearselector in D before releasing the parkingbrake.
•If you use the manual (Geartronic) shiftpositions while towing a trailer, make surethe gear you select does not put toomuch strain on the engine (using toohigh a gear).
•The drawbar assembly/trailer hitch maybe rated for trailers heavier than the vehi-cle is designed to tow. Please adhere toVolvo's recommended trailer weights.
•Avoid driving with a trailer on inclines ofmore than 15%.

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How TSA works
Once swaying has begun, it can be very difficultto stop, which makes it difficult to control thevehicle and trailer.
The TSA system continuously monitors the vehi-cle's movements, particularly lateral movement. Ifthe system detects a tendency to sway, thebrakes are applied individually on the frontwheels, which has a stabilizing effect on the vehi-cle and trailer. This is often enough to enable thedriver to regain control of the vehicle.
If this is not adequate to stop the swaying motion,the brakes are applied to all of the wheels on thevehicle and on the trailer if it is equipped withbrakes, and engine power is temporarily reduced.As the swaying motion begins to decrease andthe vehicle-trailer have once again become sta-ble, TSA will now stop regulating the brakes/engine power and the driver regains control ofthe vehicle.
TSA is deactivated if the driver deactivates ESCin the center display's menu system.
When the ESC symbol in theinstrument panel flashes, TSAis active.
Related information
•Detachable trailer hitch (p. 398)
•Driving with a trailer (p. 397)
•Electronic Stability Control (ESC) (p. 263)
Ignition modes
The vehicle's ignition can be put in variousmodes (levels) to make different functions availa-ble.
The vehicle's ignition has 3 modes: 0, I, and IIthat can be used to operate various functionswithout starting the engine. The following tableshows examples of which functions are availablein the respective modes.

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* Option/accessory, for more information, see Introduction.401
ModeFunctions available
0•The odometer, clock and tem-perature gauge are illuminated
•Power seats* can be adjusted
•The power windows can be oper-ated
•The 12-volt socket in the cargocompartment can be used
•The center display is activatedand can be used
•The infotainment system can beused for a limited time
In this mode, certain functions canonly be used for a limited time to helpminimize battery drain
I•The laminated panoramic roof*,power seats*/windows,12-voltsockets in the passenger com-partment, Bluetooth, navigationsystem*, climate system blower,windshield wipers can be oper-ated
•The infotainment system will start(if it was started when the ignitionwas switched off)
Using electrical current will drainthe start battery in this mode.
ModeFunctions available
II•The headlights illuminate
•Warning/indicator lights illumi-nate for 5 seconds
•A number of other functions willalso be activated. However, theheated seats* and heated rearwindow functions can only beactivated when the engine is run-ning.
This mode should only be used forvery short periods to help avoiddraining the battery.

Selecting an ignition mode
Start knob in the tunnel console
•Ignition mode 0: unlock the vehicle andkeep the remote key in the passenger's com-partment.
NOTE
To access ignition modes I or II without star-ting the engine, the brake pedal must not bedepressed when these modes are selected.
•Ignition mode I: Turn the start knob toSTART and release it. The knob will returnautomatically to its original position.
•Ignition mode II: Turn the start knob toSTART and hold it there for approx.4 seconds. Release the knob.
•Returning to ignition mode 0: To return tomode 0 from mode II or I, turn the start knobto STOP and release it.

Related information
•Starting the engine (p. 402)
•Turning the engine off (p. 404)

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WARNING
•Never use more than one floor mat at atime on the driver's floor. Before driving,remove the original mat from the driver'sseat floor before using any other type offloor mat. Any mat used in this positionshould be securely and properly anchoredin the attaching pins. An extra mat on thedriver's floor can cause the acceleratorand/or brake pedal to catch. Check thatthe movement of these pedals is notimpeded.
•Volvo's floor mats are specially manufac-tured for your car. They must be firmlysecured in the clips on the floor so thatthey cannot slide and become trappedunder the pedals on the driver's side.
During normal starts, the electric motor is priori-tized and the gasoline engine will not start. Thismeans that when the start knob has been turnedtoward START and released, the electric motor isactivated ("started") and the vehicle is ready tobe driven. The warning and information symbolsin the instrument panel will go out and thechosen theme will be displayed to indicate thatthe electric motor has been activated.
However, in certain situations, such as in coldweather or if the hybrid battery is not sufficientlycharged, the gasoline engine will start instead.
NOTE
The vehicle cannot be started if the hybridbattery is discharged.
Back-up reader in the tunnel console
If Vehicle key not found is displayed in theinstrument panel, place the remote key in theback-up reader in the tunnel console (see theillustration) and try again to start the engine.

NOTE
When the remote key is in the back-upreader, be sure there are no other metallicobjects (e.g., other keys, coins, cell phones) inthe cup holder. This could affect the back-upreader's function.
If Vehicle start System check, wait is dis-played in the instrument panel when you try to
start the vehicle, wait until the message is nolonger displayed and try to start again.
CAUTION
If the engine does not start after the third try,wait for approximately 3 minutes before tryingto start it again to give the battery time torecover its starting capacity.

WARNING
•Always remove the remote key from thepassenger compartment when leaving thevehicle and ensure that the ignition inmode 0.
•On vehicles with the optional PassiveEntry, never remove the remote key fromthe vehicle while it is being driven ortowed.
•Always place the gear selector in Parkand apply the parking brake before leav-ing the vehicle. Never leave the vehicleunattended with the engine running.
•Always open garage doors fully beforestarting the engine inside a garage toensure adequate ventilation. The exhaustgases contain carbon monoxide, which isinvisible and odorless but very poisonous.

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Driving systems
The XC90 T8 Twin Engine Plug-in Hybrid is aparallel hybrid, which means that it has two sep-arate drive systems: an electric motor and a gas-oline engine. Depending on the drive modeselected and the amount of electric power avail-able in the hybrid battery, the two systems canbe used in tandem or separately.

Two drive systems
A control system coordinates both of the drivesystems to help optimize driving economy.
Hybrid battery
Gasoline engine
High voltage generator3
Electric motor
The gasoline engine and electric motor both gen-erate power directly to the wheels. The gasolineengine can also charge the hybrid battery using aspecial high-voltage generator.
Related information
•Drive modes (p. 420)
•Charging the hybrid battery (p. 413)
•General information about the XC90 T8 TwinEngine Plug-in Hybrid (p. 16)
•Parking climate (preconditioning) (p. 189)
Hybrid battery charging cable
The charging cable is used to recharge yourvehicle's hybrid battery. Only use the cable provi-ded with your vehicle or one purchased from aVolvo retailer.
The charging cable is stowed in a storage compartmentunder the cargo area floor

WARNING
Only use the charging cable provided withyour vehicle or a replacement cable pur-chased from a Volvo retailer.
3Combined generator and starter motor (Crank Integrated Starter Generator).

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4.The charging cable's coupler will lock ontothe charging socket and charging will beginwithin approx. 10 seconds. The approximateremaining charging time and charging statuswill be displayed in the instrument panel. Seealso the article "Hybrid battery charge sta-tus."
Charging will be temporarily interrupted if thevehicle is unlocked:
•If a door is opened, charging will restartwithin 2 minutes.
•if no door is opened, the vehicle will auto-matically relock and charging will restartafter 1 minute.

NOTE
Charging status is shown in the instrumentpanel, which goes dark after a period of time.Reactivate the instrument panel by:
•pressing the brake pedal
•opening one of the doors
•putting the ignition in mode I (withoutpressing the brake pedal, turn the startknob to START and release it).
CAUTION
Never disconnect the charging cable from the120-/240-volt socket while charging is inprogress. This could damage the socket.
Always stop the charging process (by unlock-ing the vehicle) and disconnect the chargingcable from the vehicle's charging socketbefore disconnecting the other end from the120-/240-volt socket being used.
During the charging process, condensation mayform under the vehicle, which is normal and iscaused by cooling the hybrid battery.

Related information
•Hybrid battery charge status (p. 415)
•Charging the hybrid battery (p. 413)
•Hybrid battery charging cable (p. 405)
•Stopping hybrid battery charging (p. 411)
Charging the hybrid battery
In addition to the conventional fuel tank, theXC90 T8 Twin Engine Plug-in Hybrid is alsoequipped with a rechargeable lithium-ion hybridbattery.
The hybrid battery is recharged using a chargingcable located in a storage compartment underthe floor of the cargo area. See also the article"Charging cable."
WARNING
The hybrid electrical system in your vehicleuses high voltage electrical current. Any dam-age to this system or to the hybrid batterymay result in the danger of overheating, fire,or serious injury. If the vehicle is involved in acollision or is subjected to flooding, fires, etc.,have it inspected by a trained and qualifiedVolvo service technician. Prior to this inspec-tion, the vehicle should be parked outdoors ata safe distance from any building or poten-tially flammable materials.
The hybrid battery's charging time depends onthe charging current used.

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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.
Charging is indicated in three ways:
•Charge module (the unit that is plugged intothe wall socket): The blue indicator light onthe cable's charge module will flash red sev-eral times when the unit is plugged into awall socket while a safety check is being per-formed and will then glow steadily blue toindicate that the charger is ready to use.
•A green indicator light in the vehicle's charg-ing socket will flash green while the batteryis charging and will glow steadily green whenthe hybrid battery is fully charged. The blueindicator light in the charge module will alsoflash while charging is underway and willglow steadily blue when charging is comple-ted.
•A gauge in the instrument panel will alsoindicate the battery's charge level.
The hybrid battery charging process also chargesthe vehicle's start battery.
If the hybrid battery's temperature is below –13 ºF (–10 ºC) or above +104 ºF (+40 ºC), someof the vehicle's functions may be reduced or not
be available at all (e.g., drive mode may not beavailable).
The electric motor cannot be used if the hybridbattery's temperature is too low or too high. If thePURE drive mode is selected, the gasolineengine will be used.

Temperature control
During charging, if the temperature in the charg-ing cable becomes too high and reaches a criticallimit, charging will be interrupted.

CAUTION
If charging is interrupted repeatedly, have thecharging cable and the vehicle's chargingsystem inspected by a trained and qualifiedVolvo service technician.
Charging using the gasoline engine
Current is generated to charge the hybrid battery, suchas light braking and when engine braking on down-slopes
Using the B gear mode when driving on down-slopes will also recharge the hybrid battery.
The hybrid battery can also be charged by thegasoline engine. During light braking, the batteryis recharged.

Related information
•Drive modes (p. 420)
•General information about the XC90 T8 TwinEngine Plug-in Hybrid (p. 16)
•Hybrid battery charging cable (p. 405)
•Gear selector positions (p. 425)

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Hybrid battery charge status
The hybrid battery's charge status (level) is indi-cated by an LED light in the vehicle's chargingsocket and in the instrument panel.

Indicator LED in the vehicle's charging
socket
LED indicator light in the charging socket
The LED indicator light shows the current chargestatus while charging is underway. White, red, yel-low or yellow lights are activated when the pas-senger compartment lighting illuminates andremain on for a short time after the passengercompartment lighting has gone out.
LEDindica-tor light'scolor
Explanation
WhiteCourtesy light
YellowStandby mode (e.g., after a doorhas been opened or if thecharger coupling is not lockedin position in the chargingsocket): waiting for charging tobegin
FlashinggreenCharging is in progress (theslower the light flashes, thecloser the battery is to beingfully charged)
GreenCharging completed (the lightwill go out after a short time)
RedA fault has occurred

Charge status in the instrument panel
Charging status is indicated in the instrumentpanel using graphics and text. This information isdisplayed for as long as the instrument panel isactive.
If the instrument panel is not used for a shortperiod, it will switch off to help save electrical cur-rent and can be reactivated by:
•Pressing the brake pedal
•Opening one of the doors
•Turning the start knob to ignition mode I