2020 VOLVO S90 light

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418
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. Readings are 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. 416)
Fuel (p. 415)
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-

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419
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. 556)
Preparing for a long trip (p. 412)
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.
–Charge the battery by starting the engine and let it run for at least 15 minutes (driv-ing charges the battery faster than lettingthe engine idle).
Related information
Start battery (p. 567)
Ignition modes (p. 381)

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423
5. Keep the towline taut when the towing
vehicle slows down by applying light pres- sure to the brake pedal. This will helpavoid jarring movements.
6. Be prepared to apply the brakes to stop the vehicle.
Jump startingDo not tow the vehicle to start the engine. Usean auxiliary battery if the start battery's chargelevel is so low that the engine cannot bestarted.
CAUTION
Attempting to tow with the engine running could result in damage to the three-waycatalytic converter.
Related information
Attaching and removing the towing eyelet (p. 423)
Hazard warning flashers (p. 157)
Recovery (p. 425)
Jump starting using another battery(p. 420)
Selecting ignition mode (p. 382)
Transmission (p. 391)
Attaching and removing the towing eyelet
Use the towing eyelet when towing. Screw the towing eyelet securely into place in thethreaded outlet behind the cover on the right-hand side of the front and rear bumpers.
NOTE
If the vehicle is equipped with a towbar, there is no rear attachment for the towingeye.
Attaching the towing eyelet
Take out the towing eyelet, which is stored in a foam block under the floor inthe cargo compartment.
Front: Remove the cover by pressing on the mark with a finger.
> The cover turns along its center line and can then be removed.

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* Option/accessory.425
Recovery
This section refers to transporting the vehicle with a tow truck or similar vehicle.
Call a professional towing service for assis- tance. In certain conditions, the towing eyelet can be used to pull the vehicle onto a flatbed towtruck. For vehicles equipped with leveling con- trol *: If the vehicle is equipped with pneumatic
suspension, 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 CarParking 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. Ifthe incline of the tow truck is too steep or ifthe ground clearance under the vehicle isinsufficient, attempting to pull it up may resultin damage. In this case, the vehicle shouldonly be lifted with the tow truck's lifting equip-ment.
WARNING
No person or object should be behind the tow truck when the vehicle is lifted ontothe bed of the truck.
CAUTION
The towing eyelet is only intended for tow- ing on roads, and must not be used to pull
vehicles from ditches or any similar pur-pose involving severe strain. Call a towtruck for professional assistance.
CAUTION
Note that the vehicle must always be towed with the wheels rolling forward.
Related information
Attaching and removing the towing eyelet (p. 423)
HomeLink ®
*17
HomeLink ®
18
is a programmable remote con-
trol, integrated in the vehicle electrical sys- tem, that can control up to three differentdevices (e.g. garage door opener, alarm sys-tem, outdoor and indoor lighting) and therebyreplace the remote controls for these.
General
The illustration is generic – the design may vary.
Button 1
Button 2
Button 3
Indicator light
17 Certain markets only.
18 HomeLink and the HomeLink house symbol are registered trademarks of Gentex Corporation.

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* Option/accessory.
426 HomeLink
®
is delivered integrated in the rear-
view mirror. The HomeLink ®
panel consists of
three programmable buttons and an indicator light in the mirror. For more information about HomeLink ®
,
please visit: www.HomeLink.com or call 1-800-355-3515. Save the original remote controls for future programming (e.g. for use in another vehicle).It is also advisable to delete the button pro-gramming if the vehicle is sold.
Related information
Using HomeLink ®
* (p. 428)
Programming HomeLink ®
* (p. 426)
Type approval for HomeLink ®
* (p. 429)
Programming HomeLink ®
*19
Follow these instructions to program HomeLink ®
, reset all programming, or pro-
gram individual buttons.
NOTE
In some vehicles, the ignition must be on or in the "accessory position" before HomeLink ®
can be programmed or used. It
can be a good idea to put new batteries in the remote control being replaced by HomeLink ®
for faster programming and
better radio signal transmission. TheHomeLink ®
buttons should be reset before
programming.
WARNING
While HomeLink ®
is being programmed,
the garage door or gate being programmed may be activated. Make sure that no one isnear the door or gate during programming.When programming a garage door opener,it is advised to park outside of the garage. 1. Point the remote control at the
HomeLink ®
button to be programmed and
hold it about 2-8 cm (1-3 inches) from the button. Do not obstruct the HomeLink ®
indicator light. Note: Some remote controls are more
effective at programming HomeLink ®
from
a distance of about 15-20 cm (6-12 inches). Keep this in mind if you experi-ence any programming difficulties.
2. Press and hold both the remote control button and the HomeLink ®
button to be
programmed.
19 Certain markets only.

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427
3. Do not release the buttons until the indica-
tor light has stopped flashing slowly (about once a second) and either flashesquickly (about 10 times a second) orglows steadily. >If the indicator light glows steadily: Indication that programming is com-plete. Press the programmed buttontwice to activate. If the indicator light flashes quickly: The device being programmed with HomeLink ®
may have a security func-
tion that requires an extra step. Try pressing the programmed button twiceto see whether the programmingworks. Otherwise, continue with thefollowing steps.
4. Locate the "training" button 20
on the
receiver for the e.g. garage door opener. It is usually located near the antenna bracketon the receiver.
5. Press and release the "training" button once. Programming must be completedwithin 30 seconds after pressing the but-ton.
6. Press and release the HomeLink ®
button
to be programmed. Repeat the press/hold/release sequence a second time. Forsome receivers, the sequence may need tobe repeated a third time.
> Programming is now completed and the garage door, gate, etc. should now be activated when the programmedbutton is pressed.
If you experience any difficulties programming, please contact HomeLink ®
at: www.HomeLink.com, or call 1–800–355–3515.
Programming individual buttons
To program an individual HomeLink
®
button:
1. Press and hold the desired button for about 20 seconds.
2. When the indicator light on HomeLink ®
starts flashing slowly, it is possible to pro-gram as usual. Note: If the button you are reprogram-
ming does not program with a new device, it will return to the previouslysaved programming.
Resetting the HomeLink ®
buttons
It is only possible to reset all HomeLink ®
but-
tons at once. It is not possible to reset individ-ual buttons. Individual buttons can only bereprogrammed.
–Press and hold the outer buttons (1 and 3) on HomeLink ®
for about 10 seconds.
> When the indicator light goes from a steady glow to flashing, the buttons have been reset and are ready forreprogramming.
20The name and color of the button varies depending on the manufacturer.

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428
Related information
Using HomeLink ®
* (p. 428)
HomeLink ®
* (p. 425)
Type approval for HomeLink ®
* (p. 429)Using HomeLink ®
*21
Once HomeLink ®
is programmed, it can be
used instead of the separate remote controls.
Press and hold the programming button. The garage door, gate, alarm system, etc. will beactivated (this may take several seconds). Ifthe button is held down for more than 20 sec-onds, reprogramming will begin. The indicatorlight will glow steadily or flash when the but-ton has been pressed. The original remotecontrols may be used concurrently with HomeLink ®
if desired.
NOTE
When the ignition is switched off, HomeLink ®
will be active for at least
7 minutes.
NOTE
HomeLink ®
cannot be used if the vehicle is
locked and the alarm is armed * from the
outside.
WARNING
If you use HomeLink ®
to open a garage
door or gate, be sure no one is near the gate or door while it is in motion.
Do not use HomeLink ®
with any
garage door opener that lacks safetystop and reverse features as requiredby US federal safety standards (thisincludes any garage door opener modelmanufactured before April 1, 1982). Agarage door that cannot detect anobject - signaling the door to stop andreverse - does not meet current U.S.federal safety standards. For moreinformation, contact HomeLink at:www.homelink.com.
Related information
HomeLink ®
* (p. 425)
Programming HomeLink ®
* (p. 426)
Type approval for HomeLink ®
* (p. 429)
21
Certain markets only.

AUDIO, MEDIA AND INTERNET
* Option/accessory.
470
Settings for Android Auto *
Settings for Android devices initially con- nected with Android Auto.
Automatic start1. Tap Settings in the Top view.
2. Tap
CommunicationAndroid Autoand select setting: Check the box - Android Auto will start automatically when the USB cable isconnected.
Uncheck the box - Android Auto will notstart automatically when the USB cableis connected.
A maximum of 20 Android devices can bestored in the list. When the list is full and anew device is connected, the oldest one willbe deleted. A factory reset must be performed to delete the list.
System Volumes1. Tap Settings in the Top view.
2. Tap
SoundSystem Volumes to
change the settings for the following:

Voice Control
Navi Voice Guidance
Phone Ringtone
Related information
Android Auto
* (p. 468)
Using Android Auto
* (p. 469)
Resetting center display settings (p. 131)
Tips for using Android Auto
*
Here are some useful tips for when you use Android Auto.
Ensure that your apps are updated.
When starting the vehicle, wait until the center display has started, connect thedevice and then open Android Auto fromthe app view.
In the event of problems with AndroidAuto, unplug your Android device from theUSB port and then plug it in again. Other-wise, try closing the app on the device andthen restarting the app.
When a device is connected to AndroidAuto it is still possible to play media viaBluetooth to another media player. TheBluetooth function is on when AndroidAuto is used.
If the Android Auto icon is grayed out, itmeans that a device is no longer con-nected. When you connect your device,the icon will light up. If there is no icon atall, the vehicle does not support connect-ing a device for this purpose.
If the device is connected to the vehiclethrough Bluetooth, the connection will bebroken when Android Auto is used.Resume Internet connection in the vehicle