2017 VOLVO XC90 TWIN ENGINE HYBRID wiring

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INTRODUCTION
18
Electrical current for charging the hybrid bat-tery
Electric motor for powering the rear wheels
Hybrid battery
Drive modes (change in the center display orby using the drive mode control in the tunnelconsole)
Instrument panel showing unique hybrid-rela-ted information

WARNING
Please be aware that there is no sound fromthe engine when the vehicle is being poweredby the electric motor and it may be difficult todetect by children, pedestrians, cyclists andanimals. This is especially true at low speeds.

High-voltage electrical current WARNING
A number of electrical components in theXC90 T8 Twin Engine Plug-in Hybrid usehigh-voltage current and can be extremelydangerous if handled incorrectly. These com-ponents and any orange wiring in the vehiclemay only be handled by trained and qualifiedVolvo service technicians.

Hybrid-unique functions
Drive modes
Different drive modes can be selected while driv-ing, e.g., electric power only or a combination ofelectric and gasoline power. The vehicle calcu-lates the optimal combination of drivability, drivingexperience, environmental impact and fuel econ-omy for the selected drive mode. See also thearticle "Drive modes" for additional information.

Instrument panel
In certain driving situations, hybrid-unique infor-mation may be displayed in the instrument panel,such as: a hybrid battery gauge (current chargelevel), the current drive mode, a symbol that illu-minates when the gasoline engine is being used,a Hybrid Guide and the level of energy regenera-tion.

Preconditioning
In order to function optimally, the hybrid battery(and its related electrical systems) and the gaso-line engine (and its drive systems) should be atthe correct operating temperature. The hybridbattery's capacity is reduced considerably if it is
too cold or hot. Preconditioning prepares thevehicle's drive systems and passenger compart-ment before the vehicle is driven to help reducewear and energy consumption.
Charging the hybrid battery
CAUTION
Never connect the charging cable if there is arisk of thunderstorms/lightning.
The XC90 T8 Twin Engine Plug-in Hybrid uses alithium-ion battery that can be charged in severalways:
•A charging cable can be connected from thevehicle to a 110-volt AC socket. Chargingtime depends on the strength of the current.
•When the brakes are applied lightly, the elec-tric motor is used for engine braking, duringwhich the vehicle's kinetic energy is conver-ted into electric current that is used to helprecharge the hybrid battery.
•The hybrid battery is also recharged to a cer-tain extent when the gasoline engine is inoperation.

Related information
•Drive modes (p. 420)
•Hybrid-related information in the instrumentpanel (p. 134)
•Charging the hybrid battery (p. 413)

INTRODUCTION
* Option/accessory, for more information, see Introduction.59

Using the search function
1.Tap the magnifying glass icon () in theowner's manual's upper menu. A keyboardwill appear at the bottom of the screen.
2.Enter a word, e.g., "seat belt."
> Suggested articles will be displayed asmore characters are entered.
3. Confirm by tapping the article. To leavesearch mode tap the up-arrow next to thesearch box.

Related information
•On-board digital owner's manual (p. 56)
•Using the center display keyboard (p. 36)
Glass
Laminated glass
The windshield and panoramic roof* are made oflaminated glass, which is reinforced to help pre-vent break-ins and to provide additional sound-proofing. Laminated glass is optional for theother side windows.
Laminated glass symbol5

Related information
•Laminated panoramic roof* (p. 110)
•Power windows (p. 113)
•Defrosting windows and mirrors (p. 206)
•Using sun shades (p. 115)
•Rearview mirror (p. 114)
•Power windows (p. 113)
•Head-up display (HUD)* (p. 122)
•Activating/deactivating the rain sensor(p. 162)
•Windshield and headlight washers (p. 163)
•Tailgate window wiper and washer (p. 164)
•Defrosting windows and mirrors (p. 206)
Technician certification
In addition to Volvo factory training, Volvo sup-ports certification by the National Institute forAutomotive Service Excellence (A.S.E.).
Certified technicians have demonstrated a highdegree of competence in specific areas. Besidespassing exams, each technician must also haveworked in the field for two or more years before acertificate is issued. These professional techni-cians are best able to analyze vehicle problemsand perform the necessary maintenance proce-dures to keep your Volvo at peak operating con-dition.

XC90 T8 Twin Engine Plug-in Hybrid
Technicians performing work on a vehicle withelectrification should also have the necessarytraining and specialized certification required forperforming repairs and/or maintenance on avehicle with electrification.

WARNING
A number of electrical components in theXC90 T8 Twin Engine Plug-in Hybrid usehigh-voltage current and can be extremelydangerous if handled incorrectly. These com-ponents and any orange wiring in the vehiclemay only be handled by trained and qualifiedVolvo service technicians.
5This symbol is not shown on the windshield or moon roof/panoramic roof.

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SAFETY
78

Components in the SIPS airbag system
This SIPS airbag system consists of a gas gener-ator, the side airbag modules built into the out-board sides of both front seat backrests, andelectronic sensors/wiring.

WARNING
•The SIPS airbag system is a supplementto the structural Side Impact ProtectionSystem and the three-point seat belt sys-tem. It is not designed to deploy duringcollisions from the front or rear of thevehicle or in rollover situations.
•The use of seat covers on the front seatsmay impede SIPS airbag deployment.
•No objects, accessory equipment or stick-ers may be placed on, attached to orinstalled near the SIPS airbag system orin the area affected by SIPS airbagdeployment.
•Never try to open or repair any compo-nents of the SIPS airbag system. Thisshould be done only by a trained andqualified Volvo service technician.
•In order for the SIPS airbag to provide itsbest protection, both front seat occupantsshould sit in an upright position with theseat belt properly fastened.
•Failure to follow these instructions canresult in injury to the occupants of thevehicle in the event of an accident.
Related information
•Airbag system (p. 71)
•Seat belts (p. 66)
Inflatable curtains
The inflatable curtain is designed to help protectthe heads of the occupants of the front seatsand the occupant of the outboard rear seatingpositions in certain side impact collisions.
This system consists of inflatable curtains locatedalong the sides of the roof liners, stretching fromthe center of both front side windows to the rearedge of the rear side door windows.
In certain side impacts, both the Inflatable Cur-tain (IC) and the side Impact Airbag System(SIPS airbag) will deploy. The IC and the SIPSairbag deploy simultaneously.

DRIVER SUPPORT
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* Option/accessory, for more information, see Introduction.343
Cross Traffic Alert (CTA)* limitations
CTA functionality may be reduced in certain sit-uations.

Limitations
CTA has limitations in certain situations, forexample, the CTA sensors cannot "see" throughother parked vehicles or obstructions.
The following are several examples where CTA's"field of vision" may initially be limited andapproaching vehicles cannot be detected untilthey are too close:
The vehicle is pulled far into a parking space
In angled parking spaces, CTA may be "blind" on oneside
CTA's blind area
CTA's "field of vision"
However, as you back your vehicle out of a park-ing space, CTA's "field of vision" expands.
Examples of other limitations include:
•Dirt, ice or snow obstructing the sensors mayreduce the system's function or make itimpossible to detect other vehicles orobjects.
•CTA is deactivated if a trailer's wiring is con-nected to the vehicle's electrical system.

Maintenance
The CTA sensors are located on the inside of therear fenders/bumper.
Keep the highlighted area clean (on both sides of thevehicle)
For the system to function optimally, the areaover and around the sensors must be kept clean.
Do not attach any objects, tape, decals, etc., onthe surface of the sensors.
CAUTION
Repairs to the BLIS/CTA systems and/orrepainting the rear bumper should only bedone by a trained and qualified Volvo servicetechnician.

Related information
•Cross Traffic Alert (CTA)* (p. 341)
•Activating/deactivating Cross Traffic Alert(CTA)* (p. 342)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.348
Road Sign Information (RSI)*limitations
The RSI function may be limited in certain situa-tions.
RSI may have difficulty reading signs that are:
•Faded
•Located in a curve
•Twisted or damaged
•Positioned high above the road
•Obstructed (by bushes, etc.)
•Partially covered by snow, ice, etc.
•If the digital maps used by the SensusNavigation system* are not up-to-date or do
not contain speed information7.
The camera used by RSI has certain limitations.See the article "Camera limitations" for additionalinformation.

NOTE
RSI may perceive certain types of bicycleholders (with wiring attached to the trailerelectrical socket) as a trailer, which may resultin faulty speed limit information to the driver.
Related information
•Road Sign Information (RSI)* (p. 346)
•Road Sign Information (RSI)* operation(p. 346)
•Camera limitations (p. 323)
Driver Alert Control (DAC)
DAC is intended to alert the driver if his/her driv-ing becomes erratic due to e.g., distraction orfatigue.
DAC is designed to help detect a slowly chang-ing driving pattern. It is primarily intended to beused on main roads and is not meant for use incity traffic.
The function activates initially when the vehicle'sspeed first exceeds 40 mph (65 km/h) andremains active as long the speed remains aboveapprox. 38 mph (60 km/h)
A camera monitors the traffic lane's side markerlines and compares the direction of the road withthe driver

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.360
Park Assist limitations
The Park Assist system has certain limitations.

NOTE
A trailer hitch whose wiring is integrated withthe vehicle's electrical system will be takeninto account when measuring the availablespace behind the vehicle.
NOTE
•The system will not detect high objects,such as a loading dock, etc.
•Certain materials or fabrics may not bedetected by the sensors. Objects made ofthese materials or people wearing cloth-ing made of these fabrics may not bedetected.
•Children or animals near the vehicle maynot always be detected.
•Objects such as chains, thin shiny polesor low objects may temporarily not bedetected by the system. This may resultin the pulsing tone unexpectedly stoppinginstead of changing to a constant tone asthe vehicle approaches the object. Insuch cases, use caution when backing upor stop the vehicle to help avoid damage.
•In certain circumstances, the park assistsystem may give unexpected warning sig-nals that can be caused by externalsound sources that use the same ultra-sound frequencies as the system. Thismay include such things as the horns ofother vehicles, wet tires on asphalt, pneu-matic brakes, motorcycle exhaust pipes,other vehicles with similar ultrasound sys-tems, etc. This does not indicate a fault inthe system.
Cleaning the sensors
Location of the Park Assist sensors
The sensors must be cleaned regularly to ensurethat they work properly. Clean them with waterand a suitable car washing detergent.

NOTE
If the sensors are obstructed by e.g., dirt,snow, or ice, this could result in false warningsignals from the park assist system or thesystem may not function at all.

Related information
•Park Assist* (p. 358)
•Activating/deactivating Park Assist (p. 359)
•Park assist symbols and messages (p. 361)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.362
Park Assist Camera (PAC)*
The Park Assist Camera system is designed toprovide the driver with a view of the area aroundthe vehicle in the form of a camera image andgraphics in the center display.
PAC is a supplementary parking aid that can beactivated automatically when the gear selector isin R or by tapping a button in the center display,depending on the selected settings. See also thearticle "Starting the Park Assist Camera."
Lines: Guiding lines On/Off
Towbar: Guiding lines for a trailer hitch*11
On/Off
PAS: Park Assist On/Off
CTA: Cross Traffic Alert* On/Off
Zoom: Zoom in/out12

NOTE
A trailer hitch whose wiring is integrated withthe vehicle's electrical system will be takeninto account when measuring the availablespace behind the vehicle.

WARNING
•PAC is designed to be a supplementaryaid when parking the vehicle. It is not,however, intended to replace the driver

STARTING AND DRIVING
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387
Driving through standing water
The vehicle should be driven with extreme cau-tion if it is necessary to drive through standingwater.
The vehicle can be driven through water up to adepth approximately level with the floor at walk-ing speed to help prevent water from enteringthe differential and/or the transmission or dam-aging electrical components.
•If possible, check the depth of the waterbefore driving through it. Take particular carewhen driving through flowing water.
•Before driving through water, always selectthe Off Road drive mode to ensure that thegasoline engine is running and to maximizeground clearance.
•After driving through water, apply the brakesand check that they are functioning correctly.
•Clean the electrical connections for trailerwiring after driving in mud or water.
•When driving through water, maintain lowspeed and do not stop in the water.

CAUTION
•Damage may occur to the engine, trans-mission, electrical components, etc. if thevehicle is driven through water higherthan its floor level. Be aware that wavescreated by other vehicles could cause thelevel to temporarily be above the vehicle'sfloor level.
•Damage to any components due to waterabove the floor level, vapor lock or insuffi-cient oil is not covered under warranty.
•If the engine has been stopped while thevehicle is in water, do not attempt torestart it. Have the vehicle towed out ofthe water and inspected by a trained andqualified Volvo service technician.

WARNING
•Avoid driving through standing or rushingwater. Doing so can be dangerous and itmay also be difficult to determine theactual depth of the water.
•If water cannot be avoided, after drivingthrough the water, press lightly on thebrake pedal to ensure that the brakes arefunctioning normally. Water or mud canmake the brake linings slippery, resultingin delayed braking effect.

Related information
•Towing recommendations (p. 389)
Overheating the engine andtransmission
In demanding driving conditions, such as whentransporting heavy loads, driving in mountainousareas or in very hot weather there is a risk ofoverheating the engine or transmission.
•The engine's output may be slightly limited ifthere is a risk of overheating.
•Remove e.g., auxiliary lights mounted in frontof the grille in hot weather.
•If the temperature of the engine coolantbecomes too high, the warning symbol willilluminate and the message Enginetemperature/Stop safely will be displayed.Stop the vehicle as soon as possible in asafe place and let the engine idle for severalminutes.
•If the message Engine temperature/Hightemperature Turn off engine or Enginecoolant/Stop safely is displayed, stopsafely and turn off the engine.
•If the transmission begins to overheat, analternative gear shifting program will beselected. An integrated protective functionwill also by activated, the warning symbol willilluminate and the message TransmissionwarmHigh temperature Reduce speedor Transmission warmStop safely, waitfor cooling will be displayed in the instru-ment panel.