2018 VOLVO XC90 ECU

STARTING AND DRIVING
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447
Battery drain The electrical functions in the vehicle drain the battery to varying degrees. Avoid using ignitionmode II when the engine is switched off. Use
ignition mode I instead, as this uses less electri-
cal current.
Note that certain accessories may also drain power from the electrical system. Do not usefunctions that use a lot of electrical current whenthe engine is turned off. Examples of such func-tions are:
• blower
• headlights
• windshield wipers
• audio system (especially at high volume).
If the starter battery voltage is low, a message isshown in the driver display. The vehicle's energy-saving function will then turn off or reduce certainfunctions, such as the blower and/or the audio system.
–Charge the battery by starting the engine and let it run for at least 15 minutes (drivingcharges the battery faster than letting theengine idle).
Related information
• Start battery (p. 598)
• Ignition modes (p. 407)
Jump starting using another battery
If the start battery is discharged, current from another battery can be used to start the vehicle.
Jumper cable connecting points.
To avoid short circuits or other damage, the fol- lowing steps are recommended when jump star-ting the battery using another battery: 1. Put the ignition in mode 0.
2. Make sure the auxiliary battery (the battery used to jump start the discharged battery) has a voltage of 12 volts.
3. If the auxiliary battery is in another vehicle, turn off that vehicle's engine and make surethat the vehicles are not touching each other. 4. Clamp the red jumper cable onto the auxiliary
battery's positive (+) terminal (1).
CAUTION
Connect the jump cable carefully to prevent short circuits with other components in theengine compartment.
5. Fold back the cover over your vehicle's posi-tive (+) jump start terminal (2).
6. Clamp the other end of the red jumper cable to your vehicle's positive (+) jump start termi- nal (2).
7. Clamp the black jumper cable onto the auxili- ary battery's negative (-) terminal (3).
8. Clamp the other end of the black jumper cable to your vehicle's negative (-) groundpoint (4).
9. Make sure the jumper cables are securely attached to help prevent sparks while jumpstarting.
10. Start the engine of the assisting vehicle and let it run for a few minutes at a higher idlingspeed than normal, about 1500 rpm.

STARTING AND DRIVING
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449
Installing the ball holder1. If necessary, remove the cotter pin from thelocking bolt and slide the locking bolt out of the towbar assembly.
2. Slide the ball holder into the towbar assem- bly.
3. Align the hole in the ball holder with the one in the towbar assembly.
4. Slide the locking bolt through the towbar assembly/ball holder.
5. Insert the cotter pin in the hole at the end of the locking bolt.
WARNING
• Be sure the towbar is securely locked in position before attaching anything to it.
• Always attach the trailer's safety wiresecurely to the towbar's safety wireattachment bracket.
Removing the ball holder1. Remove the cotter pin from the locking bolt
and slide the locking bolt out of the ballholder/towbar assembly.
2. Pull the ball holder out of the towbar assem- bly.
Stowing the ball holder
WARNING
When not in use, the detachable ball holder should always be properly stowed in the des-ignated location under the floor of the cargocompartment.
Related information
• Driving with a trailer (p. 449)
• Towing capacity and tongue weight (p. 642)
Driving with a trailer
There are a number of things to consider when towing a trailer, such as the towbar, the trailerand how the load is distributed in the trailer.
Load-carrying capacity is determined by the vehi- cle's curb weight. The total weight of all passen-gers and any installed accessories, e.g. towbar,reduces the vehicle's load-carrying capacity bythe corresponding amount. • Towbars used on the vehicle must be approved for the applicable use.
• Distribute the load on the trailer so that theweight on the towbar complies with thespecified maximum towball weight. Thetongue weight is calculated as part of thevehicle's payload.
• Increase the tire pressure to the recom-mended pressure for a full load.
• The engine is subjected to more load thanusual when towing a trailer.
• Towing a trailer affects the vehicle's han-dling, durability and driving economy.
• Do not drive with a heavy trailer when thevehicle is very new. Wait until the mileagehas reached at least 1000 km (620 miles).
• On long and steep downgrades, the vehicle'sbrakes are subjected to much more loadthan usual. When manually shifting, down-shift and adapt speed accordingly.

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STARTING AND DRIVING
454
CAUTION
Attempting to tow with the engine running could result in damage to the three-way cata-lytic converter.
Related information
•Attaching and removing the towing eyelet (p. 454)
• Hazard warning flashers (p. 164)
• Recovery (p. 455)
• Jump starting using another battery (p. 447)
• Selecting ignition mode (p. 408)
Attaching and removing the towingeyelet
Use the towing eyelet when towing. Screw the towing eyelet securely into place in the threadedoutlet behind the cover on the right-hand side ofthe front and rear bumpers.
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 cargocompartment.
Front: Remove the cover by pressing on the mark with a finger.
> The cover turns along its center line and can then be removed.
Rear: Remove the cover - press the marker with your finger while prying open the oppo-site side/corner open with a coin or similar.
> The cover turns along its center line andcan then be removed.

STARTING AND DRIVING
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* Option/accessory.455
4. 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.
In certain conditions, the towing eyelet may be used to pull the vehicle onto a flatbed tow truck.The vehicle's position and ground clearancedetermines if this is possible. 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 using the towing eyeletmay result in damage. If necessary, lift the vehicle using the tow truck's lifting device instead of using the towing eyelet.
WARNING
No person or object should be behind the tow truck when the vehicle is lifted onto the bedof the truck.
CAUTION
The towing eyelet is only intended for towing on roads, and must
not be used to pull vehi-
cles from ditches or any similar purpose involving severe strain. Call a tow truck forprofessional assistance.
Related information
• Towing using a towline (p. 453)
• Recovery (p. 455)
• Tool kit (p. 542)
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. For vehicles equipped with leveling control *:
If the vehicle is equipped with pneumatic suspen- sion, this feature must be turned off before thevehicle is lifted onto a tow truck. Turning off thefunction 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 if theground clearance under the vehicle is insufficient,attempting to pull it up may result in damage. Inthis case, the vehicle should only be lifted withthe tow truck's lifting equipment.
WARNING
No person or object should be behind the tow truck when the vehicle is lifted onto the bedof the truck.

STARTING AND DRIVING
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* Option/accessory.457
Programming HomeLink®
*12
Follow these instructions to program HomeLink ®
, reset all programming, or program
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 con- trol being replaced by HomeLink ®
for faster
programming and better radio signal trans-mission. The HomeLink ®
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 is nearthe door or gate during programming. Whenprogramming a garage door opener, it isadvised 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 effec-
tive at programming HomeLink ®
from a dis-
tance of about 15-20 cm (6-12 inches). Try moving the remote control closer or furtheraway if you are experiencing any difficultiesprogramming.
2. Press and hold both the remote control but- ton and the HomeLink ®
button to be pro-
grammed.
3. Do not release the buttons until the indicator light has stopped flashing slowly (about oncea second) and either flashes quickly (about10 times a second) or glows steadily. >Steady glow: Indication that program-
ming is complete. Press the programmed button twice to activate. Flashing quickly: The device being pro-
grammed with HomeLink ®
may have a
security function that requires an extra step. Try pressing the programmed buttontwice to see whether the programmingworks. Otherwise, continue with the fol-lowing steps.
4. Locate the "training" button 13
on the
receiver for the e.g. garage door opener. It is usually located near the antenna bracket onthe receiver.
5. Press and release the "training" button once. Programming must be completed within 30seconds after pressing the button.
6. Press and release the HomeLink ®
button to
be programmed. Repeat the press/hold/release sequence a second time. For somereceivers, the sequence may need to berepeated a third time.
> Programming is now completed and the garage door, gate, etc. should now be activated when the programmed button ispressed.
If you experience any difficulties programming, please contact HomeLink ®
at:
12 Certain markets only.
13 The name and color of the button varies depending on the manufacturer.

STARTING AND DRIVING
* Option/accessory.
460
Activating and deactivating thecompass
An integrated compass in the upper right corner of the rearview mirror shows the direction thevehicle is traveling.
Activating and deactivating the compass
The compass is automatically activated when the vehicle is started. To deactivate/activate the compass manually:
–Use a paper clip or similar object to press the button on the bottom of the mirror.
Related information
• Compass (p. 459)
• Calibrating the compass (p. 460)
Calibrating the compass
The globe is divided into 15 magnetic zones. The compass should be calibrated if the vehicleis driven from one zone to another.
To calibrate the compass:
1. Stop the vehicle in a large, open area away from steel constructions and high-voltage power lines.
2. Start the engine and switch off all electrical equipment (climate system, wipers, etc.) andmake sure all doors are closed.
NOTE
Calibration may fail or not even be initiated if electrical equipment is not turned off.
3. Hold the button on the bottom of the rear-view mirror pressed for about 3 seconds (using e.g. a paper clip). The number of thecurrent magnetic zone is shown.
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 magnetic zone (
1–15) appears (see the map of mag-
netic zones).
5. Wait until the display again shows
C, or
press and hold the button on the underside 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 compass direc- tion is shown in the display. This indicatesthat calibration is complete. Drive in a circletwo more times to fine-tune the calibration.
7. Vehicles with heated windshields *: If
C is
shown in the display when the windshield heating function is activated, perform step 6above with the heating function on.

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AUDIO, MEDIA AND INTERNET
508When the vehicle is connected to the Internet, other devices may share the vehicle's Internet connection (Wi-Fi hotspot)
11
.
The connection status is shown by a symbol in the center display's status bar.
NOTE
Data (data traffic) is transfered when using the internet, which can incur additional costs. Activating data roaming can cause additional charges. Contact your network operator about data traffic costs.
NOTE
When using Apple CarPlay, it is only possible to connect the vehicle to the Internet usingWi-Fi or the vehicle's modem.
NOTE
When using Android Auto, it is possible to connect the vehicle to the Internet usingWi-Fi, Bluetooth or the vehicle's modem.
Read Terms and Conditions for Services and
Customer Privacy Policy at
support.volvocars.com before connecting the car to the Internet.
Related information
• Symbols in the center display status bar(p. 126)
• Connecting the car to the Internet via amobile device (Bluetooth) (p. 509)
• Connecting the car to the Internet via amobile device (Wi-Fi) (p. 509)
• Connect the car to the Internet via carmodem (SIM card) (p. 510)
• Apps (p. 465)
• No or poor Internet connection (p. 512) •
Sharing Internet from the vehicle via Wi-Fihotspot (tethering) (p. 511)
• Deleting Wi-Fi networks (p. 513)
• Wi-Fi technology and security (p. 513)
• Volvo ID (p. 26)
• Terms of use and data sharing (p. 514)
11
This is not possible when the vehicle is connected to another Wi-Fi hotspot.

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AUDIO, MEDIA AND INTERNET
* Option/accessory.
510 tion to the vehicle has been broken, e.g. when the phone has been removed from the vehicle. Thephone's tethering function will then need to bereactivated the next time the phone's hotspot isused to connect to the Internet. When a phone is connected to the vehicle, it will be saved for future use. When the maximumnumber of 50 connected phones has beenreached, the first will be deleted. To display a listof saved networks or to manually delete saved networks, tap
SettingsCommunication
Wi-FiSaved networks.
Technical and security requirements for Wi-Fi connection are described in a separate section.
Related information
• Internet-connected vehicle
* (p. 507)
• Deleting Wi-Fi networks (p. 513)
• No or poor Internet connection (p. 512)
• Wi-Fi technology and security (p. 513)
Connect the car to the Internet viacar modem (SIM card) For vehicles equipped with Volvo On Call, it is possible to establish an Internet connection viathe vehicle modem and a personal SIM card (P-SIM).
When the vehicle is connected using the inte- grated modem, the Volvo On Call services willuse this connection. 1.
Insert a personal SIM card in the holder.
2. Tap
Settings in the Top view.
3. Tap
CommunicationVehicle Modem
Internet.
4. Activate/deactivate by tapping to check/ uncheck the
Vehicle modem Internet box. 5. If a different connection was used previously,
confirm the connection change.
6. Enter the SIM card's PIN code. > The vehicle will connect to the network.
Related information
• Internet-connected vehicle
* (p. 507)
• No or poor Internet connection (p. 512)
• Vehicle modem settings (p. 511)