check engine VOLVO XC90 TWIN ENGINE 2018 Owner's Manual

STARTING AND DRIVING
* Option/accessory.475
Checking trailer lights
When connecting a trailer, make sure that all of
the lights on the trailer are functioning before
starting to drive.
Trailer turn signals and brake lightsIf one or more of the turn signals or brake lights
on the trailer is not working, a symbol and mes-
sage will be displayed in the instrument panel.
The other lights on the trailer must be checked
manually by the driver before the vehicle is driven. Symbol
Message •
Trailer turn indicator Right
turn indicator malfunction
• Trailer turn indicator Left
turn indicator malfunction •
Trailer brake light Malfunc-
tion If any of the trailer's turn signal lights is not work-
ing, the turn signal symbol in the instrument
panel will also flash more quickly than normal.
Trailer rear fog lightWhen a trailer is connected, the vehicle's rear fog
light may not illuminate and rear fog light func-
tionality is instead transferred to the trailer. If this
is the case, check to see if the trailer is equipped
with a rear fog light before activating the vehicle's fog lights when driving with a trailer to help
ensure safe operation.
Checking trailer lights*
Automatic check
When the trailer has been connected to the vehi-
cle's electrical system, its lights can be checked
by automatically activating them. This function
helps the driver check that the trailer's lights are
functioning correctly before starting to drive.
In order to perform this check, the engine must
be turned off.
1. When a trailer is connected to the towbar, the message Automatic Trailer Lamp
Check will appear in the instrument panel.
2.

Acknowledge the message by pressing the
O button on the right-side steering wheel
keypad.
> The light check will begin.
3. Get out of the vehicle to perform the check. > All of the lights on the trailer will beginflashing, and then illuminate separately
one at a time.
4. Visually check that all of the trailer's lights are functioning correctly.
5. After a short time, all of the trailer's lights will start flashing again.
> The light check is completed.
Disabling the automatic check
The automatic light check can be disabled in the
center display.
1.Tap Settings in the Top view.
2.

Tap My Car Lights and Lighting
.
3. Deselect Automatic Trailer Lamp Check.
Manual check
If the automatic check has been disabled, the
check can be started manually.
1.
Tap Settings in the Top view.
2.

Tap My Car Lights and Lighting
.
3. Select Manual Trailer Lamp Check.
>

The light check will begin. Get out of the
vehicle to perform the check.
Related information
• Driving with a trailer (p. 472)

STARTING AND DRIVING
476Towing using a towline
This section refers to one vehicle being towed
behind another using a towline.
Twin Engine vehicles may not be towed behind
another vehicle due to the risk of damage to the
electric motor. If the vehicle cannot be driven and
needs to be moved, it must be transported on a
tow truck with all four wheels on the bed of the
truck.
Towing another vehicleTowing another vehicle requires a lot of power -
use the AWD drive mode. This helps charge the
hybrid battery and improve the vehicle's driving
and roadholding characteristics.
Before towing another vehicle, check applicable
speed limit regulations.
Jump startingDo not tow the vehicle to start the engine. Use an
auxiliary battery if the start battery's charge level
is so low that the engine cannot be started.
CAUTION Attempts to tow-start the vehicle could cause
damage to the electrical drive motor and
three-way catalytic converter.
Related information
•
Attaching and removing the towing eyelet
(p. 476)
• Hazard warning flashers (p. 161)
• Recovery (p. 477)
• Jump starting using another battery (p. 469)
• Selecting ignition mode (p. 428) Attaching and removing the towing
eyelet
Use the towing eyelet to tow another vehicle.
Screw the towing eyelet securely into place in
the threaded outlet behind the cover on the
right-hand side of the rear bumper.
NOTE If the vehicle is equipped with a towbar, there
is no rear attachment for the towing eye.
Attaching the towing eyelet
Take out the towing eyelet, which is stored in
a foam block under the floor in the cargo
compartment.

||WHEELS AND TIRES
* Option/accessory.
562
NOTE Always remember to calibrate the Tire Pres-
sure Monitoring System when the wheels
have been changed or the tire inflation pres-
sure has been corrected according to the tire
pressure decal or tire inflation pressure table.
If correct reference values have not been set,
the system cannot issue low tire pressure
alerts correctly.
The vehicle must be stationary with the
engine running to access the calibration but-
ton and to start the calibration process.
WARNING
The exhaust gases contain carbon monoxide,
which is invisible and odorless but very poi-
sonous. For this reason, always perform the
calibration procedure outdoors or in a work-
shop with exhaust gas evacuation equipment.
Related information
•
Recommended tire pressure (p. 559)
• Adjusting tire pressure (p. 558)
• Viewing tire pressure status in the center
display* (p. 562)
• Action when warned of low tire pressure
(p. 563)
• Tire pressure monitoring system* (p. 559) Viewing tire pressure status in the
center display*
With the system for tire pressure monitoring,
Tyre Pressure Monitoring System (TPMS), tire
pressure status can be viewed in the center dis-
play.
Checking status1. Open the Car status app in App view. 2.
Tap TPMS to display the status of the tires.
Status indicator light
The graphic in the center display shows the sta-
tus of each tire 8
. Green tire:
• Inflation pressure is above the warning
threshold.
Yellow tire:
• The tire's inflation pressure is too low. Stop
and check/inflate the tire as soon as possi-
ble. Recalibrate the system after adjusting
the tire pressure.
All tires yellow:
• The inflation pressure is too low in one or
more tires. Stop and check/inflate the tires
as soon as possible. Recalibrate the system
after adjusting tire pressure.
All tires gray:
• Calibration in progress.
• Status unknown. 8
The illustration is generic. Layout may vary depending on vehicle model \
or software version.

WHEELS AND TIRES
}}
575
7.

Connect the electrical cable to the nearest
12 V outlet and start the vehicle.
NOTE Make sure that none of the vehicle's other
12 V sockets are used while the compressor
is running.
WARNING
Never leave children unattended in the vehicle
while the engine is running.
8.

Start the compressor by moving the switch to
the I (On) position.
WARNING Never stand next to a tire being inflated with
the compressor. If cracks, bulges, etc. form on
the tire, switch off the compressor immedi-
ately. The vehicle should not be driven. Call
roadside assistance to have the vehicle towed
to a workshop for inspection/replacement of
the tire. Volvo recommends an authorized
workshop.
NOTE
When the compressor first starts, air pressure
may temporarily increase up to 6 bar (88 psi)
but should decrease again after approxi-
mately 30 seconds.
9. Inflate the tire for 7 minutes.
CAUTION
To help avoid overheating, the compressor
should never be used for more than
10 minutes at a time. 10. Switch off the compressor and check the
inflation pressure using the air pressure
gauge. The inflation pressure should be
between 1.8 bar (22 psi) and 3.5 bar
(51 psi). If the inflation pressure is too high,
use the air release valve to release air.
WARNING If the bottle is not removed in the correct
order, sealant could spill out.
WARNING
If pressure falls below 1.8 bar (22 psi), the
hole in the tire may be too large. The vehicle
should not be driven. Call roadside assistance
to have the vehicle towed to a workshop for
inspection/replacement of the tire. Volvo rec-
ommends an authorized workshop.
11.

Switch off the compressor and remove the
electrical cable.
12. Unscrew the hose from the tire's valve and screw the valve cap back on.
13. Put the protective hose cover onto the hose to help prevent leakage of any residual seal-
ing compound. Return the equipment to the
cargo compartment.

MAINTENANCE AND SERVICE
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599
Periodic maintenance helps minimize
emissions
NOTE •
Refer to your Service and Warranty Book-
let for a comprehensive service and main-
tenance schedule up to 240,000 km
(150,000 miles). This program contains
inspections and services necessary for
the proper function of your vehicle and
includes components that affect vehicle
emissions.
• The Warranty and Service Records Infor-
mation booklet also contains detailed
information concerning the warranties
that apply to your vehicle.
On-board Diagnostic SystemOBD II is part of your vehicle's computerized
engine management system. It stores diagnostic
information about your vehicle's emission con-
trols. It can light the Check Engine light (MIL) if it
detects an emission control "fault." A "fault" is a
component or system that is not performing
within an expected range. A fault may be perma-
nent or temporary. OBD II will store a message
about any fault.
Emission inspection readiness
How do states use OBD II for emission
inspections?
Many states connect a computer directly to a
vehicle's OBD II system. The inspector can then
read "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 inspection
for any of the following reasons:
• If your Check Engine (MIL) light is lit, your
vehicle 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. Your
vehicle may pass or fail, depending on the
inspection practices in your area.
• If you had recent service that required dis-
connecting the battery, OBD II diagnostic
information may be incomplete and "not
ready" for inspection. A vehicle that is not
ready may fail inspection.
How can I prepare for my next
OBD II
emission inspection?
• If your Check Engine (MIL) light is lit - or was
lit but went out without service, have your vehicle diagnosed and, if necessary, serviced
by a qualified Volvo technician.
• If you recently had service for a lit Check
Engine light, or if you had service that
required disconnecting the battery, a period
of driving is necessary to bring the OBD II
system to "ready" for inspection. Two half-
hour trips of mixed stop-and-go/highway
driving are typically needed to allow OBD II to
reach readiness. Your Volvo retailer can pro-
vide you with more information on planning a
trip.
• Maintain your vehicle in accordance with your
vehicle's maintenance schedule.
Owner maintenancePeriodic maintenance requirements and intervals
are described in your vehicle's Warranty and
Service Records Information booklet.
The following points can be carried out between
the normally scheduled maintenance services.
Each time the car is refueled:
•Check the engine oil level.
• Clean the windshield, windshield wipers,
headlights, and taillights.

||MAINTENANCE AND SERVICE
600
Monthly:
•
Check cold tire pressure in all tires. Inspect
the tires for wear.
• Check that engine coolant and other fluid
levels are between the indicated "min" and
"max" markings.
• Clean interior glass surfaces with a glass
cleaner and soft paper towels.
• Wipe driver information displays with a soft
cloth.
• Visually inspect battery terminals for corro-
sion. Corrosion may indicate a loose terminal
connector, or a battery near the end of its
useful service life. Consult your Volvo retailer
for additional information.
As needed:
Wash the car, including the undercarriage, to
reduce wear that can be caused by a buildup of
dirt, and corrosion that can be caused by salt res-
idues.
Clean leaves and twigs from air intake vents at
the base of the windshield, and from other places
where they may collect.
NOTE Complete service information for qualified
technicians is available online for purchase or
subscription at www.volvotechinfo.com.
Related information
•
Vehicle status (p. 602)
• Scheduling service and repairs (p. 603)
• Connecting equipment to the vehicle's data
link connector (p. 36)
• Technician certification (p. 37)
• Climate control system service (p. 608)
• Maintenance of the brake system (p. 432)
• Engine compartment overview (p. 609) Data transfer between vehicle and
workshop over Wi-Fi
Volvo workshops have a designated Wi-Fi net-
work for secure data transfer between your vehi-
cle and the workshop. Your visit to the workshop
will be easier and more effective when diagnos-
tics information and software can be transferred
over the workshop's network.
When you arrive at the workshop, your technician
can connect your vehicle to the workshop's Wi-Fi
network to perform troubleshooting and down-
load software. For this type of communication,
the vehicle only connects to the workshop's net-
work. The vehicle can only be connected to the
designated workshop networks, not to any other
network, e.g. your home network.
Manual connection to workshop Wi-FiManual connection is usually performed by a
service technician. Because the technician uses
the buttons on your remote key to connect the
vehicle, it is important that you bring a key with
buttons when taking the vehicle in to a workshop.
Pressing the lock button on the remote key three
times will connect the vehicle to the workshop's
Wi-Fi network.
When the car is connected to a Wi-Fi network,
the symbol appears in the center display.

||MAINTENANCE AND SERVICE
* Option/accessory.
602
NOTE Data downloading can affect other services
such as transfer data, e.g. web radio. If the
affect on other services is experienced as
problematic, the download can be interrupted.
Alternatively, it may be appropriate to switch
off or cancel other services.
NOTE
An update can be interrupted when the igni-
tion is switched off and the vehicle is left.
However, the update does not have to be
completed before the vehicle is left as the
update is resumed the next time the vehicle is
used.
Updating all system software
–
Select Install all at the bottom of the list.
To avoid displaying a list, select Install all via the
System updates button.
Updating individual system software
–Select Install to choose the software you
would like to download.
Canceling software download
– Tap the checkbox in the activity indicator that
replaced the
Install button when the down-
load began. Note that only a download can be cancelled. An
installation cannot be cancelled once it has
begun.
Deactivating the background search for
software update
Automatic background searching for software
updates is activated as the default factory setting,
but the function can be deactivated.
1. Tap Settings in the center display's Top
view.
2.

Tap System Download Center
.
3. Tap to deselect Auto Software Update.
Related information
•Download Center (p. 601)
• Internet-connected vehicle* (p. 529)
• Navigating in the center display's views
(p. 115) Vehicle status
The vehicle's general status can be displayed in
the center display along with the option to
schedule service 3
.
The
Car status app is started
from the center display's App
view and has four tabs: •
Messages - status messages
• Status - engine oil level check
• TPMS - tire inflation pressure check
• Appointments - appointment information
and vehicle information 3
.
Related information
• Handling messages saved from the instru-
ment panel (p. 107)
• Checking and filling engine oil (p. 611)
• Tire pressure monitoring system* (p. 559)
• Scheduling service and repairs (p. 603)
• Sending vehicle information to the workshop
(p. 604)
• Navigating in the center display's views
(p. 115)

MAINTENANCE AND SERVICE
}}
603
Scheduling service and repairs
4
This service offers a convenient way to schedule
service and workshop appoints directly from the
vehicle. When it is time for service, and in certain cases if
the vehicle requires repairs, a message will be
displayed in the instrument panel and at the top
of the center display. The time for service is
determined by how much time has elapsed, the
number of hours the engine has run, or the dis-
tance driven since the last service.
To use the service
• Create a Volvo ID and register the Volvo ID
to the vehicle.
• To select a Volvo retailer you would like to
contact, go to www.volvocars.com and log in.
• To send and receive appointment informa-
tion, the vehicle must be connected to the
Internet 5
.
Book serviceWhen you schedule service from your vehicle, the
information is sent via your Internet connection 5
.
Submit an appointment request whenever you
need service or when a message regarding the
need for service or repairs has been displayed in the instrument panel and at the top of the center
display. 1.
Open the Car status app from App view in
the center display.
2. Tap the Appointments button.
3. Tap the Request appointment button.
4. Check that your Volvo ID is correct.
5. Make sure your preferred Workshop is cor-
rect.
6. In the Tap to write information to the
Workshop field, you can provide details on
what you would like performed during the
visit or other important information to your
workshop. 7.
Tap the Send appointment request but-
ton.
>

You will receive an appointment sugges-
tion to your vehicle within a couple of
days 6
. You will also receive the same
message via email and when you log in to
www.volvocars.com.
On some markets, the message in the
instrument panel indicating that the vehi-
cle requires service will go out once the
appointment request has been sent.
8. Tap Cancel request if you would like to
cancel your request.
The appointment request contains information
about your vehicle that helps the workshop plan
for your visit.
The retailer will send you a digital appointment
suggestion. Information about your retailer is also
available in the vehicle so that you can contact
your workshop at any time.
Accepting an appointment suggestionWhen the vehicle has received an appointment
suggestion, a message will be displayed at the
top of the center display.
1. Tap the message. 3
Certain markets only.
4 Certain markets only.
5 There may be a charge for transmitting data over the Internet, depending\
on your service plan.
6 Timespan may vary depending on market.

MAINTENANCE AND SERVICE
609
Engine compartment overview
This overview shows some service-related com-
ponents. Some of the components included in the vehi-
cle's electric drive system are located in the
engine compartment. Exercise caution when
accessing the engine compartment and only
touch what is required for normal maintenance.
WARNING Orange wiring may only be handled by quali-
fied personnel.
WARNING
Several components in the vehicle work with
high voltage that can be hazardous in case of
an incorrect procedure.
• Do not touch anything that is not clearly
described in this Owner's Manual.
• Be careful when checking/filling fluids in
the engine compartment. The layout of the engine compartment may vary depend-
ing on model and engine variant.
Coolant expansion tank
Brake fluid reservoir (located on the driver's
side)
Washer fluid filler pipe
11 Fusebox
Air filter
Engine oil filler pipe
WARNING Bear in mind that the cooling fan (located at
the front of the engine compartment behind
the radiator) may start or continue running
automatically up to about 6 minutes after the
engine is turned off.
Always entrust engine washing to a workshop
– an authorized Volvo workshop is recom-
mended. If the engine is hot, there is a risk of
fire.
WARNING
The ignition system works with extremely high
and dangerous voltages. The vehicle electrical
system should always be in ignition mode 0
when work in being performed in the engine
compartment.
Do not touch any spark plugs or ignition coils
when the vehicle electrical system is in igni-
tion mode II or when the engine is warm.
Related information
•
Opening and closing the hood (p. 607)
• Filling washer fluid (p. 650)
• Refilling coolant (p. 612)
• Fuses in the engine compartment (p. 622)
• Checking and filling engine oil (p. 611)
• Ignition modes (p. 427) 11
Fill the washer fluid at regular intervals, e.g. when refueling.

MAINTENANCE AND SERVICE
610Engine oil
For the recommended service intervals and war-
ranties to be applied, an approved engine oil
must be used. Volvo recommends: If the engine oil is not checked regularly and the
level becomes low, this could cause serious
engine damage.
CAUTION
To satisfy the requirements for the engine's
service intervals, all engines are factory-filled
with a specially adapted synthetic engine oil.
Great care has been put into the choice of oil,
with consideration given to service life, starta-
bility, fuel consumption and environmental
impact.
For the recommended service intervals to
apply, an approved engine oil must be used.
Only use the prescribed oil grade to top off or
change the oil. Otherwise, there is a risk of
the vehicle's service life, startability, fuel con-
sumption and environmental impact being
affected.
Failure to use engine oil of the prescribed
grade and viscosity could cause damage to
engine-related components. Volvo Car Corpo-
ration disclaims warranty liability for such type
of damage.
Volvo recommends entrusting oil changes to
an authorized Volvo workshop.
Volvo uses different systems to warn if the oil
level is too low/high or the oil pressure is low. On
engine variants with an oil pressure sensor, awarning symbol is displayed in the instrument
panel when oil pressure is low . On engine
variants with an oil level sensor, the warn-
ing symbol in the instrument panel and display
messages are used to alert the driver. Some
engine variants have both systems. Contact a
Volvo retailer for more information.
Change the engine oil and oil filter according to
the schedule specified in the Warranty and Main-
tenance Records Information booklet. Oils of a
higher grade than that specified may be used. If
the vehicle is driven in adverse conditions, Volvo
recommends using an oil with a higher grade
than that specified.
Related information
• Checking and filling engine oil (p. 611)
• Engine oil specifications (p. 662)