2018 VOLVO XC90 TWIN ENGINE wheel

STARTING AND DRIVING
* Option/accessory.
474 Trailer Stability Assist*
Trailer Stability Assist (TSA 8
) is a function
designed to help stabilize a vehicle that is tow-
ing a trailer when the vehicle and trailer have
begun to sway. The function is part of the Elec-
tronic Stability Control system ESC 9
.
Reasons for swayingA vehicle towing a trailer may begin to sway for
various reasons. Normally this only occurs at high
speeds. However, if the trailer is overloaded or
unevenly distributed, e.g. too far back, there is a
risk of swaying even at low speeds.
Swaying may be caused by factors such as:
• The vehicle and trailer are hit by a sudden,
strong crosswind.
• The vehicle and trailer are traveling on an
uneven road or over a bump.
• Sudden movements of the steering wheel.
Once swaying has begun, it can be difficult or
impossible to stop it. This makes the vehicle and
trailer difficult to control and there is a risk of
swerving into oncoming traffic or driving off the
road.
Trailer Stability Assist functionTrailer Stability Assist continuously monitors the
vehicle's movements, particularly lateral move- ments. If swaying is detected, the brakes are
applied individually on the front wheels, which has
a stabilizing effect on the vehicle and trailer. This
is often enough to enable the driver to regain
control of the vehicle.
If the Trailer Stability Assist function's first
attempt is not adequate to stop the swaying
motion, the brakes are applied on all wheels and
engine power is temporarily reduced. As the
swaying motion begins to decrease and the vehi-
cle and trailer have once again become stable,
TSA stops regulating the brakes/engine power
and the driver regains control of the vehicle.
NOTE
Trailer Stability Assist is deactivated if the
driver selects the sport mode by deactivating
ESC in the center display's menu system. Trailer Stability Assist may not intervene if the
driver tries to compensate for the swaying motion
by moving the steering wheel rapidly, because
the system will then not be able to determine if it
is the trailer or the driver causing the swaying. When Trailer Stability Assist is
activated, the ESC symbol is
displayed in the instrument
panel.
Related information
•
Driving with a trailer (p. 472)
• Electronic Stability Control (p. 274) 8
Trailer Stability Assist
9 Electronic Stability Control

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.

STARTING AND DRIVING
}}
* Option/accessory. 477Remove the cover - press the marker with
your finger while prying open the opposite
side/corner open with a coin or similar.
>

The cover turns along its center line and
can then be removed. 3. Screw in the towing eyelet until it reaches its
stop. Fasten the eyelet securing by, for exam-
ple, inserting a lug wrench* through it and
using this as a lever.
CAUTION It is important that the towing eye is screwed
in securely as far as possible.
Removing the towing eyelet:
–
After use, unscrew the towing eyelet and
return it to its storage location.
Replace the cover on the bumper.
Related information
• Towing using a towline (p. 476)
• Recovery (p. 477)
• Tool kit (p. 564) Recovery
This section refers to transporting the vehicle
with a tow truck or similar vehicle. Call a professional towing service for assistance.
In certain conditions, the towing eyelet can be
used to pull the vehicle onto a flatbed tow truck.
CAUTION Note that vehicles with Twin Engine must
always be towed raised with all wheels on the
tow truck.
For vehicles equipped with leveling control*:
If the vehicle is equipped with pneumatic suspen-
sion, this feature must be turned off before the
vehicle is lifted onto a tow truck. Turning off the
function in the center display.
1. Tap Settings in the Top view.
2.

Tap My Car Parking Brake and
Suspension .
3. Select Disable Leveling Control.
The vehicle's location and ground clearance
determine if it can be lifted onto a tow truck. If
the incline of the tow truck is too steep or if the
ground clearance under the vehicle is insufficient,
attempting to pull it up may result in damage. In
this case, the vehicle should only be lifted with
the tow truck's lifting equipment.

AUDIO, MEDIA AND INTERNET
* Option/accessory.
486 Audio, media and Internet
The audio and media system consists of a media
player and a radio. A cellular phone can also be
connected through Bluetooth to use hands-free
functions or play music in the vehicle. When the
vehicle is connected to the Internet, it is also
possible to use apps to play media. Audio and media overview
The functions can be controlled using voice com-
mands, the steering wheel keypad or the center
display. The number of speakers and amplifiers
varies depending on the audio system installed in
the vehicle.
System updates
The audio and media system is continuously
improved. When the vehicle has an Internet con-
nection, system updates can be downloaded for
optimal functionality; see support.volvocars.com.
Related information
•
Media player (p. 507)
• Radio (p. 490)
• Phone (p. 520)
• Internet-connected vehicle* (p. 529)
• Apps (p. 487)
• Voice control (p. 145)
• Ignition modes (p. 427)
• Driver distraction (p. 39)
• Handling system updates via Download Cen-
ter (p. 601)
• License agreement for audio and media
(p. 539) Sound settings
The audio system is precalibrated for optimal
sound reproduction but these settings can be
personalized.
The system's volume is normally adjusted using
the volume control below the center display or
the right-side steering wheel keypad. This
applies, for example, when playing music or the
radio or during phone calls and active traffic mes-
sages.
Optimal sound reproductionThe audio system is precalibrated for optimal
sound reproduction using digital signal process-
ing. This calibration takes into account speakers,
amplifiers, passenger compartment acoustics, lis-
tener position, etc. for each combination of vehi-
cle model and audio system. There is also a
dynamic calibration that takes into account the
volume control setting and the vehicle's speed.
Sound settings as needed
In Top view under Settings Sound, the fol-
lowing settings can be selected:
• Tone — personal preference for bass, treble,
equalizer for example.
• Balance - balance between right/left and
front/rear speakers.
• System Volumes – adjusts volume in the
various systems of the car, e.g.
Voice
Control, Park Assist and Phone Ringtone.

AUDIO, MEDIA AND INTERNET
* Option/accessory.
490 Deleting apps
When the vehicle is connected to the Internet, it
is possible to uninstall apps. If the app is being used, it must be closed before
it can be uninstalled.
1. Open the Download Center app in App
view. 2.
Select Application updates to open a list
of all installed apps.
3. Find the desired app and select Uninstall to
begin uninstalling the app.
>

When the app has been uninstalled, it will
be removed from the list.
Related information
• Apps (p. 487)
• Download apps (p. 488)
• Updating apps (p. 489)
• Handling system updates via Download Cen-
ter (p. 601)
• Internet-connected vehicle* (p. 529) Radio
The radio can receive broadcasting from the FM
waveband with HD Radio™ Technology and
SiriusXM
®
Satellite radio *. When the vehicle has
an Internet connection, it is also possible to lis-
ten to web radio. The radio can be controlled
using voice commands, the
right-side steering wheel key-
pad or the center display.
Related information
•
Starting the radio (p. 491)
• Changing waveband and radio station
(p. 491)
• Storing radio favorites (p. 493)
• Radio settings (p. 493) •
RBDS (p. 494)
• HD Radio™ (p. 494)
• SiriusXM ®
Satellite radio* (p. 498)
• Internet-connected vehicle* (p. 529)
• Voice control for radio and media (p. 148)
• Media player (p. 507)

AUDIO, MEDIA AND INTERNET
}}
491
Starting the radio
The radio is started from the center display's
App view.
1.
Open the desired waveband (e.g. FM) from
App view. 2. Select a radio station.
Related information
•
Radio (p. 490)
• Searching for a radio station (p. 492) •
Changing waveband and radio station
(p. 491)
• Storing radio favorites (p. 493)
• Radio settings (p. 493)
• Voice control for radio and media (p. 148) Changing waveband and radio
station
Instructions for changing wavebands, waveband
lists and radio stations in the selected list are
provided here.
Changing wavebandsSwipe from App view on the center display and
select the desired waveband (e.g. FM) or open
the App menu in the instrument panel with the
right-side steering wheel keypad and make your
selection there.
Changing a list in a waveband 1.
Tap Library.
2. Select playback from Stations, Favorites or
Genres.
3.

Tap the desired station in the list.
Favorites – only plays selected favorite channels.

||AUDIO, MEDIA AND INTERNET
492
Genres - only plays channels broadcasting the
selected genre or program type, e.g. pop, classi-
cal, etc.
Changing radio stations in a selected
list
– Press or under the center display
or on the right-side steering wheel keypad.
>
Move step-by-step through the selected
list.
It is also possible to change radio station in the
selected list via the center display.
Related information
• Radio (p. 490)
• Searching for a radio station (p. 492)
• Voice control for radio and media (p. 148)
• Storing radio favorites (p. 493)
• Radio settings (p. 493)
• App menu in instrument panel (p. 103) Searching for a radio station
The radio automatically compiles a list of the
radio stations that are sending out the strongest
signals in the vehicle's current location. Searching is performed in different ways depend-
ing on the waveband selected:
• FM, stations, genres and frequency.
1. Tap Library.
2. Tap .
>

Search view will displayed and the key-
board will open.
3. Enter a search word/phrase. > The search will start and change as char-acters are entered. Search results will be
displayed by category.
Searching for a station manually Searching manually makes it possible to find and
tune to stations that are not on the automatically
compiled list of the strongest stations in the area.
–
Tap
Manual tuning, drag the control or tap or . Press and hold to skip to the
next available station in the frequency band.
You can also use the right-side steering
wheel keypad.
Related information
• Radio (p. 490)
• Starting the radio (p. 491)
• Changing waveband and radio station
(p. 491)
• Voice control for radio and media (p. 148)
• Radio settings (p. 493)