overheating VOLVO XC90 TWIN ENGINE 2020 Owners Manual

10

Using the steering wheel paddles*
to shift 429
Shiftlock 430
The kickdown function 431
All Wheel Drive (AWD) 431
Drive systems 432
Starting and stopping the com- bustion engine in Twin Enginevehicles 433
Drive modes 433
Changing drive mode 438
Energy distribution in hybrid mode using map data *439
Leveling control * and suspension
440
Leveling control settings *
443
Low Speed Control 443
Activating and deactivating Low Speed Control using the functionbutton 444
Hill Descent Control 445
Activating and deactivating HillDescent Control using the func-tion button 446
Economical driving 446
Factors affecting electric motor range 448
Hold and Charge functions 449
Preparing for a long trip 450

Winter driving450
Driving through standing water 451
Opening/closing the fuel filler door 452
Refueling 453
Fuel 454
Octane rating 455
Emission controls 457
Overheating of engine and trans- mission 458
Battery drain 459
Jump starting using another battery 459
Retractable hitch *
461
Detachable towbar *
463
Driving with a trailer 465
Trailer Stability Assist *
467
Checking trailer lights 468
Towing using a towline 469
Attaching and removing the tow-ing eyelet 469
Recovery 470
HomeLink ®
* 471
Programming HomeLink ®
* 472
Using HomeLink ®
* 474
Type approval for HomeLink ®
* 474
Compass *
475

Activating and deactivating the compass* 475
Calibrating the compass *
476

WINDOWS, GLASS AND MIRRORS
185
Using the rear window wiper/ washer The rear window washer/wiper is designed to clean the rear window. Use the right-sidesteering wheel lever to start and control thewiper/washer.
Activating the rear window wiper/ washer
NOTE
The rear window wiper motor is equipped with overheating protection that switchesoff the motor if it becomes overheated. Therear window wiper can be operated againafter a cooling-down period.Select for interval rear window
wiper.
Select for continuous rear window
wiper.
–Move the right-side steering wheel lever forward to wash/wipe the rear window.
Related information
Using the rain sensor (p. 182)
Using the windshield and headlight wash-ers (p. 184)
Using automatic rear window wipingwhen backing up (p. 186)
Using the rain sensor's memory function(p. 183)
Wiper blades and washer fluid (p. 181)
Filling washer fluid (p. 656)
Putting the wiper blades in service posi-tion (p. 655)
Replacing windshield wiper blades(p. 654)
Changing rear window wipers (p. 653)
Using the windshield wipers (p. 181)

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HYBRID INFORMATION
398
WARNING
The charging cable must be grounded when in use. It is equipped with a cordwith a grounding conductor and agrounding plug. The plug must beinserted into an appropriate outlet thatis properly installed and grounded inaccordance with all local codes andordinances and is not damaged in anyway.
Children should be supervised when inthe vicinity of the charging cable whenit is plugged in.
High voltage is present in your electricmeter housing and power distributionservice panel. Contact with high volt-age can cause death or serious per-sonal injury.
Do not use the charging cable if it isdamaged in any way. A damaged ormalfunctioning charging cable mayonly be repaired by a workshop – anauthorized Volvo workshop is recom-mended.
Always position the charging cable sothat it will not be driven over, steppedon, tripped over or otherwise damaged,or cause personal injury.
Disconnect the charger from the walloutlet before cleaning it.
Never connect the charging cable to an extension cord or a multiple plugsocket.
Also, refer to the manufacturer's instruc- tions for using the charging cable and itscomponents.
CAUTION
Power strips, extension cords, surge pro- tectors or similar devices must not be usedtogether with the charging cable since thismay involve a risk of fire, electric shocks,etc. An adapter may not be used between the 120/240 V outlet (AC, alternating current)and the charging cable.
CAUTION
Never detach the charging cable from the 120/240 V outlet (AC, alternating current)while charging is in progress – the120/240 V outlet could be damaged insuch circumstances. Always interruptcharging first and then disconnect thecharging cable – first from the vehicle'scharging socket and then from the120/240 V outlet.
CAUTION
Wipe the charging cable with a clean cloth lightly moistened with water or a milddetergent. Do not use chemicals or sol-vents.
WARNING
The charging cable and its components must not be rinsed or immersed in water.
CAUTION
Avoid exposing the charging module and its plug to direct sunlight. In such cases,the overheating protection in the plugcould reduce or cut off charging of thehybrid battery.

HYBRID INFORMATION
399
Charging cable components
Charge module
240 V adapter clip
240 V adapter
Charge coupler
Release button
Related information
Charging cable residual current device (p. 399)
Charging cable temperature monitoring(p. 400)
Charging the hybrid battery (p. 395)
Charging status in the charging cable'scharging module (p. 403)
Charging cable residual current device The charging cable has a circuit breaker that helps protect against current overloads andthermal overheating.
WARNING
Charging the hybrid battery may only be done from approved, grounded 120/240 Voutlets (AC, alternating current). If the elec-trical circuit or electrical socket's capacityis not known, let a licensed electricianinspect the electrical circuit's capacity.Using a charge level that exceeds the elec-trical circuit's or electrical outlet's capacitymay start a fire or damage the electrical cir-cuit.
WARNING
The charging cable's residual current breaker helps protect the vehicle'scharging system but cannot ensurethat an current overload will neveroccur.
Never use visibly worn or damagedelectrical sockets. Doing so could leadto fires or serious injury.
Never connect the charging cable to anextension cord.
Maintenance or replacement of thehybrid battery may only be performedby a trained and qualified Volvo servicetechnician.
If the charging cable's residual current device
is triggered, the blue indicator light in thecharging module will not illuminate when thecharging cable is plugged into an electricaloutlet (or the red warning light will glowsteadily). Have the outlet checked by alicensed electrician or try using another walloutlet.
Related information
Charge cable (p. 397)
Charging status in the charging cable'scharging module (p. 403)

STARTING AND DRIVING
* Option/accessory.
412
Starting the vehicle
The vehicle can be started using the start knob in the tunnel console when the remotekey is in the passenger compartment.
Start knob in the tunnel console.
WARNING
Before starting:
Buckle your seat belt.
Adjust the seat, steering wheel and mirrors.
Make sure you can fully depress thebrake pedal.
The remote key is not physically used to startthe ignition because the vehicle is equippedwith the keyless Passive Start system. To start the vehicle:
CAUTION
The vehicle cannot be started if the charg- ing cable is still plugged in. Make sure topull out the charging cable from the charg-ing socket before starting the vehicle.
1. The remote key must be inside the vehicle.
For vehicles with Passive Start, the key must be in the front section of the passen-ger compartment. With the optional key- less locking/unlocking function *, the key
can be anywhere in the vehicle.
2. Press and hold down the brake pedal 1
as
far as possible.
3. Turn the start knob clockwise and release. The control will automatically return to the original position.
WARNING
Never use more than one inlay mat at a time on the driver's floor. If any othertype of floor mat is used, remove theoriginal mat from the driver's seat floorbefore driving. All types of mats mustbe securely anchored in the attach-ment points in the floor. Make sure thefloor mat does not impede the move-ment of the brake pedal or acceleratorpedal in any way, as this could be aserious safety hazard.
Volvo's floor mats are specially manu-factured for your vehicle. They must beproperly secured in the attachmentpoints in the floor to help ensure theycannot slide and become trappedunder the pedals.
The starter motor will crank until the enginestarts or until overheating protection is trig-gered. During normal start conditions, the vehicle's electric motor will be prioritized and the gaso-line engine will remain off. This means thatonce the start knob is turned clockwise, theelectric motor has been "started" and the vehi-cle is ready to be driven. The warning andinformation symbols in the instrument panel
1 If the vehicle is moving, it is only necessary to turn the start knob clockwise to start the engine.

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STARTING AND DRIVING
414
CAUTION
When starting in cold weather, the automatic transmission may shift up atslightly higher engine speeds than nor-mal until the automatic transmissionfluid reaches normal operating tem-perature.
Do not race a cold engine immediatelyafter starting. This could prevent fluidsfrom properly lubricating vital compo-nents in the engine before it hasreached the proper operating tempera-ture.
The engine should be idling when thegear selector is moved. Never acceler-ate until the gear is fully engaged.Accelerating rapidly before a gear isproperly engaged could lead to harderwear of components.
To help prevent the transmission oilfrom overheating, select
P or N when
idling at a standstill for prolonged peri-ods of time.
NOTE
With a cold start, idling speed may be con- siderably higher than normal for certainengine types. This is done to get the emis-sions system up to normal operating tem-perature as quickly as possible, which min-imizes exhaust emissions and protects theenvironment.
Related information
Switching off the vehicle (p. 414)
Ignition modes (p. 415)
Adjusting the steering wheel (p. 206)
Jump starting using another battery (p. 459)
Selecting ignition mode (p. 416)
Switching off the vehicle
The vehicle can be switched off using the start knob in the tunnel console.
Start knob in the tunnel console.
To switch off the vehicle:
–Turn the start knob clockwise and release to switch off the vehicle. The control willautomatically return to the original posi-tion.
If the vehicle rolls:
–Turn clockwise and hold the knob until the vehicle switches off.
Related information
Starting the vehicle (p. 412)
Ignition modes (p. 415)
Adjusting the steering wheel (p. 206)

STARTING AND DRIVING
* Option/accessory.427
Automatic transmission
In vehicles with an automatic transmission, the system selects the gear so that drivingwill be as energy-efficient as possible. Thetransmission also has a manual mode.
Overview of gear selector and gear shift pattern in the instrument panel
The instrument panel shows which gear is cur- rently in use: R , N , D or B. P position is electric.
For manual shifting, the gear indicator in the instrument panel displays the gear currentlybeing used.
CAUTION
Check the operating temperature of the transmission to help avoid damage to anyof the drive system components. If there isa risk of overheating, a warning symbol willappear in the instrument panel and a textmessage will be displayed. Follow the rec-ommendations given.
Symbols in the instrument panelIf a problem should occur with the transmis- sion, a symbol and a message will appear inthe instrument panel.
Symbol Meaning
Information and messages rela- ted to the transmission. Followthe recommendations provided.
Hot or overheated transmission. Follow the recommendationsprovided.
Reduced performance/Accel-
eration performance reduced
In the event of a temporary fault in the driveline, the vehicle maygo into a "limp home" mode withreduced power output to helpavoid damage to the driveline.
Related information
Gear selector positions for automatic transmissions (p. 428)
Using the steering wheel paddles
* to shift
(p. 429)
Shiftlock (p. 430)
The kickdown function (p. 431)

STARTING AND DRIVING
431
Related information
Automatic transmission (p. 427)
Gear selector positions for automatic transmissions (p. 428)
The kickdown function Kickdown can be used when maximum acceleration is needed, e.g. when passing.
When the accelerator pedal is depressed all the way to the floor (past the normal full accel-erator position), the transmission will auto-matically engage kickdown, i.e. immediatelyshift down to a lower gear. If the accelerator pedal is released from the kickdown position, the transmission will auto-matically shift up again.
Safety function
The transmission control module is equipped with a downshift protection feature to helpprevent the engine from overheating. In some conditions, the transmission will pre- vent downshifting/kickdown if this would leadto such high engine speed (rpm) that theengine could be damaged. If the driver stillattempts downshifting or kickdown at a highrpm, nothing will happen and the original gearwill remain selected. With kickdown, the vehicle can downshift one or more steps at a time depending on theengine speed. The vehicle upshifts when theengine reaches its maximum rpm to preventengine damage.
Related information
Automatic transmission (p. 427)
All Wheel Drive (AWD)
All-wheel drive (AWD 5
), also called four-
wheel drive, means that power is distributed to all four wheels, which improves traction.
The electric motor that powers the rear wheels enables electronic all-wheel drive functionality.All-wheel drive reacts differently depending onwhich drive mode is selected.
Related information
Drive modes (p. 433)
Low Speed Control (p. 443)
Transmission (p. 426)
5
All Wheel Drive

STARTING AND DRIVING
457
WARNING
Never carry a cell phone that is switched
on while refueling your vehicle. If the
phone rings, this may cause a spark that could ignite gasoline fumes, resulting in fireand injury.
WARNING
Carbon monoxide is a poisonous, colorless, and odorless gas. It is present in all exhaustgases. If you ever smell exhaust fumesinside the vehicle, make sure the passengercompartment is ventilated, and immedi-ately return the vehicle to a trained andqualified Volvo service technician for cor-rection.
Demanding drivingIn demanding driving conditions, such as when towing a trailer or driving in hot weatheror for prolonged periods at high altitudes, itmay be a good idea to switch to a higher- octane fuel (AKI 14
91 or higher) or to switch to
another brand of gasoline in order to fully uti- lize the vehicle's engine capacity and optimizetraction.
Related information
Fuel (p. 454)
Emission controls (p. 457)
Emission controls
Three-way catalytic converter
Keep your engine properly tuned. Certain engine malfunctions, particularly involvingthe electrical, fuel or distributor ignitionsystems, may cause unusually high three-way catalytic converter temperatures. Donot continue to operate your vehicle if youdetect engine misfire, noticeable loss ofpower or other unusual operating condi-tions, such as engine overheating or back-firing. A properly tuned engine will helpavoid malfunctions that could damage thethree-way catalytic converter.
Do not park your vehicle over combustiblematerials, such as grass or leaves, whichcan come into contact with the hotexhaust system and cause such materialsto ignite under certain wind and weatherconditions.
Excessive starter cranking (in excess ofone minute), or an intermittently firing orflooded engine can cause three-way cata-lytic converter or exhaust system over-heating.
Remember that tampering or unauthor-ized modifications to the engine, theEngine Control Module, or the vehicle maybe illegal and can cause three-way cata-lytic converter or exhaust system over- heating. This includes: altering fuel injec-tion settings or components, alteringemission system components or locationor removing components, and/or repeateduse of leaded fuel.
NOTE
Unleaded fuel is required for vehicles with three-way catalytic converters.
Heated oxygen sensorsThe heated oxygen sensors monitor the oxy- gen content of the exhaust gases. Readingsare fed into a control module that continuouslymonitors engine functions and controls fuelinjection. The ratio of fuel to air into the engineis continuously adjusted for efficient combus-tion to help reduce harmful emissions.
Related information

Octane rating (p. 455)
Fuel (p. 454)
14
AKI (Anti Knock Index) is an average value of RON (Research Octane Number) and MON (Motor Octane Number) - (RON)+(MON)/2

STARTING AND DRIVING
458
Overheating of engine and transmission
In certain driving conditions, such as driving in mountainous areas or hot weather, there isa risk of the engine or transmission overheat-ing, especially when carrying heavy loads.
Engine power may be temporarily limited.
Remove any auxiliary lights mounted in front of the grille when driving in hotweather.
If the temperature in the engine's coolingsystem becomes too high, a warning sym-bol will appear in the instrument panel along with the message
Engine
temperature High temperature Stop
safely. Pull over to a safe location and let
the engine idle for a few minutes to cool down.
If the message
Engine temperature
High temperature Turn off engine orEngine coolant Level low, turn off
engine is displayed, stop the vehicle and
turn off the engine.
If the transmission begins to overheat, an alternative gear shifting program will beselected. An integrated protective functionwill also be activated, the warning symbolwill illuminate and the message
Transmission warm Reduce speed to
lower temperature or Transmission hot
Stop safely, wait for cooling will be dis- played in the instrument panel. Follow the recommendations given by reducingspeed or stopping the vehicle safely andletting the engine idle for a few minutes tolet the transmission cool.
If the vehicle begins to overheat, the airconditioning may be temporarily switchedoff.
After a prolonged period of driving indemanding conditions, do not turn off theengine immediately after stopping.
NOTE
It is normal for the engine's cooling fan to operate for a short time after the engine isswitched off.
Symbols in the instrument panel
Symbol Meaning
High engine temperature. Follow the recommendations provided.
Low coolant level. Follow the recommendations provided.
Transmission hot/overheated/ cooling. Follow the recommen-dations provided.
Related information
Refilling coolant (p. 610)
Driving with a trailer (p. 465)
Preparing for a long trip (p. 450)