
STARTING AND DRIVING
* Option/accessory.
422
Leveling control * and suspension
Self-leveling and suspension functions are controlled automatically.
Shock absorbers (Four-C)On vehicles equipped with Four-C, the shock absorbers are adapted to the selected drive mode and the current vehicle speed. Theshock absorbers are normally set to help opti-mize comfort and are adjusted continuouslyaccording to the road surface and the vehicle'sacceleration, braking and cornering.
Symbols and messagesIf a problem occurs with the leveling control, amessage will be displayed in the instrumentpanel.
Symbol Message Meaning
Suspension Service requiredA fault has occurred. Visit a workshop
A
as soon as possible.
A An authorized Volvo workshop is recommended.
Related information
Drive modes
* (p. 413)

||
STARTING AND DRIVING
430heating. 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. 428)
Fuel (p. 427)
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.

STARTING AND DRIVING
}}
431
Related information
Refilling coolant (p. 582)
Driving with a trailer (p. 434)
Preparing for a long trip (p. 424)
Battery drain
The electrical functions in the vehicle drain the battery to varying degrees. Avoid usingignition mode II when the engine is switched
off. Use ignition mode I instead, as this uses
less electrical current.
Note that certain accessories may also drain power from the electrical system. Do not usefunctions that use a lot of electrical currentwhen the engine is turned off. Examples ofsuch functions are: blower
headlights
windshield wipers
audio system (especially at high volume).
If the starter battery voltage is low, a message is shown in the driver display. The vehicle'senergy-saving function will then turn off orreduce certain functions, such as the blowerand/or the audio system.
–To charge the battery, start the engine and let it run for at least 15 minutes (drivingcharges the battery faster than letting theengine idle).
Related information
Starter battery (p. 584)
Ignition modes (p. 395)
Jump starting using another battery If the start battery is discharged, current from another battery can be used to start the vehi-cle.
Jumper cable connecting points. Engine compart- ment appearance may vary depending on vehiclemodel and equipment level.
To avoid short circuits or other damage, the following steps are recommended when jumpstarting the battery using another battery:
1. Put the ignition in mode
0.
2. Make sure the auxiliary battery (the bat- tery used to jump start the discharged battery) has a voltage of 12 volts.

STARTING AND DRIVING
* Option/accessory.
436
Trailer Stability Assist *
Trailer Stability Assist (TSA 18
) is part of the
ESC 19
stability system and is a function
designed to help stabilize a vehicle that is towing a trailer when the vehicle and trailerhave begun to sway. The function is addedwhen installing a towbar. Contact a Volvoretailer for more information.
Reasons for swayingA vehicle towing a trailer may begin to sway for various reasons. Normally this only occursat high speeds. However, if the trailer is over-loaded or unevenly distributed, e.g. too farback, there is a risk of swaying even at lowspeeds. 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 anuneven road or over a bump.
Sudden movements of the steering wheel.
Once swaying has begun, it can be difficult orimpossible to stop it. This makes the vehicleand trailer difficult to control and there is a riskof swerving into oncoming traffic or driving offthe road.
Trailer Stability Assist functionTrailer Stability Assist continuously monitorsthe vehicle's movements, particularly lateralmovements. If swaying is detected, the brakesare applied individually on the front wheels,which has a stabilizing effect on the vehicleand trailer. This is often enough to enable thedriver to regain control of the vehicle. If the Trailer Stability Assist function's first attempt is not adequate to stop the swayingmotion, the brakes are applied on all wheelsand engine power is temporarily reduced. Asthe swaying motion begins to decrease andthe vehicle and trailer have once againbecome stable, TSA stops regulating thebrakes/engine power and the driver regainscontrol of the vehicle.
NOTE
Trailer Stability Assist is deactivated if the driver activates ESC Sport Mode in the
center display's menu system.
Trailer Stability Assist may not intervene if the driver tries to compensate for the swayingmotion by moving the steering wheel rapidly,because the system will then not be able todetermine if it is the trailer or the driver caus-ing the swaying. When Trailer Stability Assistis activated, the ESC symbolis displayed in the instrumentpanel.
NOTE
A vehicle software update is required when a towbar is retrofitted. Contact a Volvoretailer.
Related information
Driving with a trailer (p. 434)
Electronic Stability Control (p. 271)
18
Trailer Stability Assist
19 Electronic Stability Control

STARTING AND DRIVING
* Option/accessory.437
Checking trailer lights
When connecting a trailer, make sure that all of the lights on the trailer are functioningbefore 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 symboland message will be displayed in the instru-ment panel. The other lights on the trailermust be checked manually by the driver beforethe 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 working, the turn signal symbol in the instru-ment panel will also flash more quickly thannormal.
Trailer rear fog lightWhen a trailer is connected, the vehicle's rearfog light may not illuminate and rear fog lightfunctionality is instead transferred to the trailer. If this is the case, check to see if thetrailer is equipped with a rear fog light beforeactivating the vehicle's fog lights when drivingwith a trailer to help ensure safe operation.
Checking trailer lights
*
Automatic check
When the trailer has been connected to the vehicle's electrical system, its lights can bechecked by automatically activating them.This function helps the driver check that thetrailer's lights are functioning correctly beforestarting to drive. In order to perform this check, the vehicle must be switched 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 CarLights 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 CarLights 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. 434)

||
STARTING AND DRIVING
* Option/accessory.
446
15
14
13
12
11
9
8
7
6
5
4
3
2
1
10
Magnetic zones.
4. Press the button on the underside of themirror repeatedly until the desired mag- netic zone (
1–15) appears (see the map of
magnetic zones).
5. Wait until the display again shows
C, or
press and hold the button on the under- side of the rearview mirror for approx.
6 seconds until
C is displayed.
6. Drive slowly in a circle at a speed of no more than 10 km/h (6 mph) until a com- pass direction is shown in the display. Thisindicates that calibration is complete.Drive in a circle two more times to fine-tune the calibration. 7.
Vehicles with heated windshields *: If
Cis shown in the display when the wind- shield heating function is activated, per-form step 6 above with the heating func-tion on.
8. Repeat the above procedure as needed.
Related information
Compass
* (p. 445)
Activating and deactivating the compass
*
(p. 445)

AUDIO, MEDIA AND INTERNET
* Option/accessory.
448
Audio, media and Internet
The audio and media system consists of a media player and a radio. A cellular phone canalso be connected through Bluetooth to usehands-free functions or play music in thevehicle. When the vehicle is connected to theInternet, it is also possible to use apps to playmedia.
Audio and media overview
The functions can be controlled using voice commands, the steering wheel keypad or thecenter display. The number of speakers andamplifiers varies depending on the audio sys-tem installed in the vehicle.
System updates
The audio and media system is continuously improved. It is recommended to download system updates as soon as they are available.
Related information
Media player (p. 469)
Radio (p. 452)
Phone (p. 485)
Internet-connected vehicle
* (p. 500)
Apps (p. 450)
Voice Control (p. 143)
Ignition modes (p. 395)
Driver distraction (p. 41)
Handling system updates via DownloadCenter (p. 569)
License agreement for audio and media(p. 509)
Sound settings
Sound reproduction quality is preset but can also be adjusted.
The system's volume is normally adjusted using the volume control below the center dis-play or the right-side steering wheel keypad.This applies, for example, when playing musicor the radio or during phone calls and activetraffic messages.
Sound reproductionThe audio system is precalibrated using digitalsignal processing. This calibration takes intoaccount speakers, amplifiers, passenger com-partment acoustics, listener position, etc. foreach combination of vehicle model and audiosystem. There is also a dynamic calibrationthat takes into account the volume control set-ting and the vehicle's speed.
Personal settingsDifferent settings are available in Top view under
SettingsSound depending on the
vehicle's sound system.
Premium Sound * (Bowers & Wilkins)
Tone - setting for e.g. bass, treble, equal-
izer, etc.
Balance - balance between right/left and
front/rear speakers.
System Volumes – adjusts volume in the
various systems of the car, e.g. Voice

AUDIO, MEDIA AND INTERNET
* Option/accessory.449
Control, Park Assist and Phone
Ringtone.
High Performance Pro * (Harman
Kardon)
Equalizer - setting of equalizer.
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.
High Performance
Tone - setting for e.g. bass, treble, equal-
izer, etc.
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.
Related information
Sound experience
* (p. 449)
Media player (p. 469)
Voice control settings (p. 148)
Phone settings (p. 492)
Audio, media and Internet (p. 448)
Internet-connected vehicle
* (p. 500)
Sound experience *
Sound experience is an app that provides access to additional sound settings.
Open Sound Experience from the center dis-
play's App view. Depending on the sound sys- tem installed in the vehicle, the following set-tings are possible:
Premium Sound * (Bowers & Wilkins)
Studio – sound settings can be adjusted
to be primarily adapted for Driver, All andRear.
Individual stage - surround sound mode
with settings for intensity and enclosure.
Concert hall - reproduces the acoustics
of Gothenburg's Concert Hall.
Jazz club – reproduces the acoustics of
the Nefertiti Jazz Club.
Reproduces the acoustics of the Nefertiti Jazz Club.
High Performance Pro * (Harman
Kardon)
Seat Optimization – sound settings can
be adjusted to be primarily adapted for
Driver, All and Rear.
Surround - surround sound mode with
level settings.
Tone - setting for e.g. bass, treble, equal-
izer, etc.
Related information
Sound settings (p. 448)
Navigating in the center display's views (p. 113)