2018 VOLVO XC90 TWIN ENGINE tow bar

DRIVER SUPPORT
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* Option/accessory. 389
CAUTION•
Bear in mind that when the rearward
camera view is selected, the screen only
shows the area behind the vehicle – pay
attention to the sides and front of the
vehicle when steering while reversing.
• The same applies to the reverse – pay
attention to what is happening with the
rear parts of the vehicle when the front
camera view is selected.
• Note that the guide lines show the short-
est path – pay extra attention to ensure
that the vehicle sides do not come in
contact with/travel over anything when
steering while driving forward or that the
vehicle front moves toward/over anything
when steering while reversing.Trajectory lines in 360° view* 360° view with trajectory lines
121
.
In the 360° view, trajectory lines are shown
behind, in front of, or to the sides of the vehicle,
depending on the direction of travel.
• When driving forward: Front lines
• When backing up: Side lines and rear lines.
When the front or rear camera is selected, the
trajectory lines will be shown regardless of the
vehicle's direction of travel.
With a side camera selected, the trajectory lines
will only be shown if the vehicle is backing up.Trajectory lines for a towbar* Towbar with trajectory line
121
. Towbar
- activate trajectory lines for towbar.
Zoom
- zoom in/out.
The camera can help make hitching a trailer eas-
ier by showing an anticipated trajectory line for
the towbar's path toward the trailer. 121
The illustration is generic - details may vary according to vehicle mode\
l.

||DRIVER SUPPORT
* Option/accessory.
390 1.
Tap Towbar (1).
>

The trajectory line for the towbar's antici-
pated path toward the vehicle will appear
and the vehicle's trajectory lines will dis-
appear.
Trajectory lines cannot be displayed for
both the vehicle and the towbar at the
same time.
2. Tap Zoom (2) for a close-up view for more
precise maneuvering.
>

The camera will zoom in.
Related information
• Park Assist Camera* (p. 386) Sensor field from Park Assist for
Park Assist Camera
If the vehicle is equipped with Park Assist, dis-
tances will be shown in the 360° view with col-
ored fields for each sensor that has detected an
obstacle.
Front and rear sensors The screen can display colored sensor fields on the
vehicle symbol
122
. The front and rear fields change colors (from yel-
low to orange to red) as the vehicle moves closer
to an obstacle. Front and rear field
colors Distance in meters
(feet)
Yellow

0.6-1.5 (2.0-4.9)
Orange 0.4-0.6 (1.3-2.0)
Red 0-0.4 (0-1.3)
Side sensor fields
The side sensor fields will only be shown in
orange. Side field color
Distance in meters (feet)
Orange
0-0.3 (0-1.0)
Related information
•Park Assist Camera* (p. 386) 122
The illustration is generic - details may vary according to vehicle mode\
l.

STARTING AND DRIVING
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* Option/accessory. 471•
If contact occurs, flush the affected area
immediately with water. Obtain medical
help immediately if eyes are affected.
• Never expose the battery to open flame
or electric spark. Do not smoke near the
battery. Failure to follow the instructions
for jump starting can lead to injury.
NOTE The vehicle cannot be started if the hybrid
battery is discharged.
Related information
•
Starting the vehicle (p. 424)
• Ignition modes (p. 427)
• Adjusting the steering wheel (p. 199)
• Selecting ignition mode (p. 428) Detachable towbar*
Volvo recommends the use of Volvo towbars
that are specially designed for the vehicle.
NOTE The optional detachable trailer hitch may not
be available in all markets or on all models.
Consult your Volvo retailer.
Ball holder
Cotter pin
Towbar assembly
Locking bolt
Safety wire attachment bracket
Installing the ball holder1. If necessary, remove the cotter pin from the
locking 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 wire
securely to the towbar's safety wire
attachment bracket.
Removing the ball holder1. Remove the cotter pin from the locking bolt
and slide the locking bolt out of the ball
holder/towbar assembly.
2. Pull the ball holder out of the towbar assem- bly.

||STARTING AND DRIVING
472
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 cargo
compartment.
Related information
•
Driving with a trailer (p. 472)
• Towing capacity and tongue weight (p. 660) Driving with a trailer
There are a number of things to consider when
towing a trailer, such as the towbar, the trailer
and 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 by
the corresponding amount.
• Towbars used on the vehicle must be
approved for the applicable use.
• Distribute the load on the trailer so that the
weight on the towbar complies with the
specified maximum towball weight. The
tongue weight is calculated as part of the
vehicle's payload.
• Increase the tire pressure to the recom-
mended pressure for a full load.
• The engine is subjected to more load than
usual 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 the
vehicle is very new. Wait until the mileage
has reached at least 1000 km (620 miles).
• On long and steep downgrades, the vehicle's
brakes are subjected to much more load
than usual. When manually shifting, down-
shift and adapt speed accordingly. •
Follow applicable regulations regarding per-
mitted speed and weight.
• Drive slowly when towing a trailer up a long
and steep incline.
• The maximum trailer weights given only apply
to altitudes up to 1000 meters (3280 feet)
above sea level. At higher altitudes, engine
power (and thus the vehicle's climbing ability)
is decreased due to the reduced air density,
and the maximum trailer weight must there-
fore be reduced. The weight of the vehicle
and trailer must be decreased by 10% for
each additional 1000 m (3280 feet) or part
thereof.
• Avoid driving with a trailer on inclines of more
than 12%.
• Avoid overloading and other incorrect use.
• The trailer's brakes must be balanced with
the vehicle's brakes to help ensure safe
stops (follow applicable local regulations).

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
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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.

||WHEELS AND TIRES
576
14. Immediately drive the vehicle at least 3 km
(2 miles) at a maximum speed of 80 km/h
(50 mph) to allow the sealing compound to
seal the tire, and then recheck the inflation
pressure.
NOTE During the tire's first revolution, some sealing
compound may spray out of the puncture
hole.
WARNING
Before driving away, make sure that no one is
near the vehicle who could be sprayed with
sealing compound. Make sure no one is
within 2 meters(7 feet) of the vehicle.
15. Rechecking the inflation pressure
Connect the hose to the tire's valve and
screw the hose connector onto the valve as
far as possible. The compressor must be
switched off. 16.

Check the inflation pressure on the air pres-
sure gauge.
• If the pressure is under 1.3 bar (19 psi),
the tire is not sufficiently sealed. The vehi-
cle should not be driven. Call roadside
assistance to have the vehicle towed.
• If the inflation pressure is higher than
1.3 bar (19 psi), the tire must be inflated
to the inflation pressure specified on the
tire pressure decal on the driver's side
door pillar (1 bar = 100 kPa = 14.5 psi). If
the inflation pressure is too high, use the
air release valve to release air.
NOTE Replace the sealing compound bottle and
hose after use. Volvo recommends having
these replaced by an authorized Volvo work-
shop.
WARNING
Check inflation pressure regularly.
Volvo recommends driving to the nearest author-
ized Volvo workshop to have the tire replaced/
repaired. Inform the workshop that the tire con-
tains sealing compound.
WARNING After using the tire sealing system, the vehicle
should not be driven farther than approxi-
mately 200 km (120 miles).
NOTE
The compressor is an electric device. Follow
local regulations for disposal.
Related information
•
Recommended tire pressure (p. 559)
• Tire sealing system (p. 572)
• Inflate tires with the compressor included in
the tire sealing system (p. 577)