2017 VOLVO XC90 TWIN ENGINE HYBRID check engine light

STARTING AND DRIVING
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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.

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•The air conditioning may be switched offtemporarily.
•After a prolonged period of driving, do notturn off the engine immediately after stop-ping.
•The engine cooling fan commonly continuesto run for several minutes after the enginehas been turned off.

WARNING
The cooling fan (located at the front of theengine compartment, behind the radiator) maystart or continue to operate (for up to6 minutes) after the engine has beenswitched off.

Related information
•Driving with a trailer (p. 397)
•Before a long distance trip (p. 385)
Winter driving
Check your vehicle before the approach of coldweather.
The following advice is worth noting:
•Make sure that the engine coolant contains50 percent antifreeze. Any other mixture willreduce freeze protection. This gives protec-tion against freezing down to –31 °F(–35 °C). The use of "recycled" antifreeze isnot approved by Volvo. Different types ofantifreeze must not be mixed.
•Volvo recommends using only genuine Volvoantifreeze in your vehicle's radiator.
•Try to keep the fuel tank well filled – thishelps prevent the formation of condensationin the tank. In addition, in extremely coldweather conditions it is worthwhile to addfuel line de-icer before refueling.
•The viscosity of the engine oil is important.Oil with low viscosity (thinner oil) improvescold-weather starting as well as decreasingfuel consumption while the engine is warm-ing up. Full synthetic 0W-30 oil is recom-mended for driving in areas with sustainedlow temperatures.
•The load placed on the battery is greater dur-ing the winter since the windshield wipers,lighting, etc., are used more often. Moreover,the capacity of the battery decreases as thetemperature drops. In very cold weather, apoorly charged battery can freeze and be
damaged. It is therefore advisable to checkthe state of charge more frequently andspray an anti-rust oil on the battery posts.
•Volvo recommends the use of snow tires onall four wheels for winter driving.
•To prevent the washer fluid reservoir fromfreezing, add washer solvents containingantifreeze. This is important since dirt is oftensplashed on the windshield during winterdriving, requiring the frequent use of thewashers and wipers. Volvo Washer Solventshould be diluted as follows: Down to 14 °F(–10 °C): 1 part washer solvent and 4 partswater Down to 5 °F (–15 °C): 1 part washersolvent and 3 parts water Down to 0 °F(–18 °C): 1 part washer solvent and 2 partswater Down to –18 °F (–28 °C): 1 partwasher solvent and 1 part water.
•Use Volvo Teflon Lock Spray in the locks.
•Avoid using de-icing sprays as they cancause damage to the locks.

Related information
•Snow tires and chains (p. 485)

STARTING AND DRIVING
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389
Towing eyelet
When used, the towing eyelet should always besecurely attached in the openings on the rightside of the front and rear bumpers. There arecovers over these attachment points.

Using the towing eyelet
Take out the towing eyelet, which is storedunder the floor in the cargo compartment.
Remove the cover by pressing the mark witha finger and folding out the opposite side/corner with a coin, small screwdriver, etc.
>The cover turns along its center line andthen be removed.
3. Screw the towing eyelet into place, first byhand and then using the tire iron, etc. until ithas been screwed in as far as possible.
After use, the eyelet should be removed andreturned to its storage location.
Reinsert the cover into the bumper.

Related information
•Towing recommendations (p. 389)
Towing recommendations
Always check with state and local authoritiesbefore attempting to tow another vehiclebecause this type of towing is subject to regula-tions regarding maximum towing speed, lengthand type of towing device, lighting, etc.
Towing your vehicle behind another
vehicle
The XC90 T8 Twin Engine Plug-in Hybrid maynot be towed behind another vehicle. Doing sowould damage the electric motor and the three-way catalytic converter. If the vehicle cannot bedriven and must be moved, it must be lifted ontoa flat-bed tow truck.
If the XC90 T8 Twin Engine Plug-in Hybrid is totow (pull) another vehicle, select the AWD drivemode. This helps charge the hybrid battery andimproves the vehicle's road holding characteris-tics.

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Fuel
Volvo recommends the use of detergent gaso-line to control engine deposits.

Deposit control gasoline (detergent
additives)
Detergent gasoline is effective in keeping injec-tors and intake valves clean. Consistent use ofdeposit control gasolines will help ensure gooddrivability and fuel economy. If you are not surewhether the gasoline contains deposit controladditives, check with the service station operator.

NOTE
Volvo does not recommend the use of exter-nal fuel injector cleaning systems.

Unleaded fuel
Each Volvo has a three-way catalytic converterand must use only unleaded gasoline. U.S. andCanadian regulations require that pumps deliver-ing unleaded gasoline be labeled "UNLEADED".Only these pumps have nozzles which fit yourvehicle's filler inlet. It is unlawful to dispense lea-ded fuel into a vehicle labeled "unleaded gaso-line only". Leaded gasoline damages the three-way catalytic converter and the heated oxygensensor system. Repeated use of leaded gasolinewill lessen the effectiveness of the emission con-trol system and could result in loss of emissionwarranty coverage. State and local vehicle
inspection programs will make detection of mis-fueling easier, possibly resulting in emission testfailure for misfueled vehicles.
NOTE
Some U.S. and Canadian gasolines contain anoctane enhancing additive called methyl-cyclopentadienyl manganese tricarbonyl(MMT). If such fuels are used, your EmissionControl System performance may be affected,and the Check Engine Light (malfunctionindicator light) located on your instrumentpanel may light. If this occurs, please returnyour vehicle to a trained and qualified Volvoservice technician for service.

Gasoline containing alcohol and ethers,
"Oxygenated fuels"
Some fuel suppliers sell gasoline containing"oxygenates" which are usually alcohols orethers. In some areas, state or local laws requirethat the service pump be marked indicating useof alcohols or ethers. However, there are areas inwhich the pumps are unmarked. If you are notsure whether there is alcohol or ethers in thegasoline you buy, check with the service stationoperator. To meet seasonal air quality standards,some areas require the use of "oxygenated" fuel.
Volvo allows the use of the following "oxygen-ated" fuels; however, the octane ratings listedmust still be met.
Alcohol – Ethanol
Fuels containing up to 10% ethanol by volumemay be used. Ethanol may also be referred to asEthyl alcohol, or "Gasohol".
Ethers – MTBE: Fuels containing up to15% MTBE may be used.

Methanol
Do not use gasolines containing methanol(methyl alcohol, wood alcohol). This practice canresult in vehicle performance deterioration andcan damage critical parts in the fuel system. Suchdamage may not be covered under the NewVehicle Limited Warranty.

Related information
•Octane rating (p. 392)
•Opening/closing the fuel filler door (p. 393)

STARTING AND DRIVING
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Opening/closing the fuel filler door
The fuel tank has a filling system that does nothave a cover.

Opening/closing the fuel filler door
An arrow next to the fuel pumpsymbol in the instrument panelindicates the side of the vehiclewhere the fuel filler door islocated.
1. Press the button on the lighting panel.
>Pressure equalization in the fuel tank cau-ses a slight delay before the fuel fillerdoor opens. Fuel tank Fuel lid isopening will be displayed in the instru-ment panel, followed by Fuel tank Readyfor refueling.
2.After refueling, close the fuel filler door bypressing lightly.
Refueling from a service station pump
To refuel:
1.Open the fuel filler door. Do not refuel with
the engine running1
2. Insert the pump's nozzle into the fuel fillerpipe's opening as far as possible (see theillustration).
3. Avoid overfilling the fuel tank. Do not pressthe handle on the filler nozzle after it hasstopped pumping. Too much fuel in the tankin hot weather conditions can cause the fuelto overflow. Overfilling could also cause dam-age to the emission control systems.
1If the engine is running when the vehicle is refueled, the Check Engine Light (malfunction indicator lamp) may indicate a fault. However, your vehicle's performance will not be affected.

STARTING AND DRIVING
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Battery drain
Your vehicle's electrical functions drain the bat-tery to varying extents.
Avoid using ignition mode II as much as posssi-ble, or electrical functions that require a greatdeal of electrical current when the engine is notrunning.
Using ignition mode I whenever possible con-sumes less electrical current.
Functions that require a great deal of electricalcurrent include:
•the climate system blower
•headlights
•wipers
•infotainment system (especially at high vol-ume).
If the battery's charge level is low, a text messagewill appear in the instrument panel. The vehicle'senergy-saving function will then turn off orreduce certain functions that are currently con-suming electrical current.
If the battery needs to be recharged, start theengine and let it idle for at least 15 minutes ordrive the vehicle (driving charges the batteryfaster than letting the engine idle).

Related information
•Ignition modes (p. 400)
Starting the engine
The engine can be started using the start knobon the tunnel console if there is a remote key inthe passenger compartment.
Start knob in the tunnel console between the front seats
WARNING
Before starting the engine:
•Fasten the seat belt.
•Check that the seat, steering wheel andmirrors are adjusted properly.
•Make sure the brake pedal can bedepressed completely. Adjust the seat ifnecessary.
To start the engine.
1.A remote key must be in the passenger com-partment. On models with the standardPassive Start, the key has to be in the frontsection of the passenger compartment. If thevehicle is equipped the optional PassiveEntry system (keyless locking/unlocking) thekey can be anywhere in the vehicle.
2.Press firmly on the brake pedal2.
3.Turn the start knob toward START andrelease it to start the engine.
> The starter motor will crank until theengine starts or its overheating protectionis triggered.
2If the vehicle is moving, it is only necessary to turn the start knob toward START to start the engine.

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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)

MAINTENANCE AND SERVICING
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Volvo's service program
Periodic maintenance and service performed atthe intervals specified in your Warranty andService Records Information booklet will helpkeep your vehicle running well.

Introduction
The maintenance services contain several checksthat require special instruments and tools andtherefore must be performed by a qualified tech-nician. To keep your Volvo in top condition, spec-ify time-tested and proven Genuine Volvo Partsand Accessories.

The Federal Clean Air Act – U.S.
The Federal Clean Air Act requires vehicle manu-facturers to furnish written instructions to the ulti-mate purchaser to assure the proper servicingand function of the components that controlemissions. These services, which are listed in the"Warranty and Service Records Information"booklet, are not covered by the warranty. You willbe required to pay for labor and material used.

Maintenance
Your Volvo passed several major inspectionsbefore it was delivered to you, in accordance withVolvo specifications. The maintenance proce-dures outlined in the Warranty and ServiceRecords Information booklet, many of which willpositively affect your vehicle's emissions, shouldbe performed as indicated. It is recommendedthat receipts for vehicle emission maintenance beretained in case questions arise concerning
maintenance. Inspection and maintenance shouldalso be performed anytime a malfunction isobserved or suspected.
Applicable warranties – U.S./Canada
In accordance with applicable U.S. and Canadianregulations, the following list of warranties is pro-vided.
•New Vehicle Limited Warranty
•Parts and Accessories Limited Warranty
•Corrosion Protection Limited Warranty
•Seat Belt and Supplemental Restraint Sys-tems Limited Warranty
•Emission Design and Defect Warranty
•Emission Performance Warranty
These are the federal warranties; other warran-ties are provided as required by state/provinciallaw. Refer to your separate Warranty and ServiceRecords Information booklet for detailed informa-tion concerning each of the warranties.
Periodic maintenance helps minimize
emissions
NOTE
•Refer to your Warranty and ServiceRecords Information booklet for a com-prehensive service and maintenanceschedule up to 150,000 miles (240,000km). This program contains inspectionsand services necessary for the properfunction of your vehicle and includescomponents that affect vehicle emis-sions.
•The Warranty and Service Records Infor-mation booklet also contains detailedinformation concerning the warrantiesthat apply to your vehicle.

On-board Diagnostic System
OBD II is part of your vehicle's computerizedengine management system. It stores diagnosticinformation about your vehicle's emission con-trols. It can light the Check Engine light (MIL) if itdetects an emission control "fault." A "fault" is acomponent or system that is not performingwithin an expected range. A fault may be perma-nent or temporary. OBD II will store a messageabout any fault.