2018 VOLVO XC90 TWIN ENGINE brake

LIGHTING
* Option/accessory.153
WARNINGThe vehicle lighting system cannot in all situa-
tions determine when the daylight is too weak
or not strong enough, e.g. when there is fog
or rain.
The driver is always responsible for driving the
vehicle with lighting that is safe for the traffic
conditions and as specified by applicable traf-
fic regulations.
Thumbwheel in instrument panel
Thumb wheel (to the left) for adjusting interior bright-
ness.
Related information
•
Adjusting light functions via the center dis-
play (p. 153)
• Interior Lighting (p. 162)
• Parking lights (p. 154) •
Using turn signals (p. 158)
• Using high beam (p. 156)
• Low beams (p. 155)
• Rear fog light (p. 159)
• Active Bending Lights* (p. 159)
• Brake lights (p. 160)
• Emergency brake lights (p. 160)
• Hazard warning flashers (p. 161) Adjusting light functions via the
center display
Multiple light functions can be adjusted and acti-
vated via the center display. These include auto-
matic high beam, home safe lighting, and
approach lighting. 1. Tap Settings in the Top view.
2.

Tap My Car Lights and Lighting
.
3. Select Exterior Lights or Interior Lighting.
Related information
• Lighting panel and controls (p. 152)
• Active high beam (p. 157)
• Using home safe lighting (p. 161)
• Welcome Light (p. 161)
• Using turn signals (p. 158)
• Opening settings in the center display
(p. 132)
• Function view in the center display (p. 122)

||LIGHTING
160
The rear fog light turns off automatically when
the start knob is turned clockwise to turn off the
ignition or when the lighting ring is turned to the
or position.
NOTE
Regulations concerning rear fog light use vary
from country to country.
Related information
•
Lighting panel and controls (p. 152)
• Ignition modes (p. 427) Brake lights
The brake lights are automatically illuminated
when braking.
The brake lights illuminate when the brake pedal
is depressed. They also illuminate when the
brakes are automatically applied by one of the
driver support systems.
Related information
•
Emergency brake lights (p. 160)
• Brake functions (p. 429) Emergency brake lights
The emergency brake lights are activated to
warn following vehicles of hard braking.
This function causes an additional taillight on
each side of the vehicle to illuminate.
The emergency brake lights are activated in the
event of hard braking or if the ABS system is
activated and the vehicle is traveling at a high
speed.
After the driver decelerates to a low speed and
then releases the brake, the brake lights resume
their normal brightness.
Related information
• Brake lights (p. 160)
• Brakes (p. 429)
• Hazard warning flashers (p. 161)

LIGHTING
* Option/accessory.161
Hazard warning flashers
Hazard warning flashers warn other road users
by all of the vehicle's turn signals being activated
at the same time. The function can be used to
warn about a traffic hazard. Hazard warning flashers button.
Press the button to activate the hazard warning
flashers.
NOTE Regulations concerning the use of hazard
warning flashers may vary from country to
country.
Related information
•
Emergency brake lights (p. 160)
• Using turn signals (p. 158) Using home safe lighting
Some of the exterior lights remain on to illumi-
nate the area around the vehicle. This is called
home safe lighting.
To activate home safe lighting:
1.
Switch off the ignition.
2. Push the left-side steering wheel lever toward the dashboard and release.
3. Exit the vehicle and lock the doors.
When the function is activated, a symbol will be
shown in the instrument panel and the parking
lights, outer door handle lights* and the license
plate lights will be illuminated.
The length of time home safe lighting remains
illuminated can be set in the center display.
Related information
• Adjusting light functions via the center dis-
play (p. 153)
• Welcome Light (p. 161) Welcome Light
Approach lighting is activated when the vehicle
is unlocked and can be used to provide light as
you walk toward the vehicle.
The function is activated when the remote key is
used for unlocking. The parking lights, outer door
handle lights*, license plate lights, interior ceiling
lights, footwell lighting and trunk/cargo compart-
ment lighting will be illuminated. If a door is
opened while the function is activated, the light-
ing in the outer door handle* and the interior
lighting will remain illuminated for a longer period
of time.
This function can be activated and deactivated in
the center display.
Related information
• Adjusting light functions via the center dis-
play (p. 153)
• Using home safe lighting (p. 161)
• Remote key (p. 239)

SEATS AND STEERING WHEEL
* Option/accessory.187
Using stored memory in a powered
front seat
The memory function can be used to store the
settings for the seat, door mirrors and head-up
display*.
Using a stored positionA stored position can be used with the front door
open or closed:
Front door open
– Briefly press one of the memory buttons
(1-3). The seat, door mirrors and head-up
display will move and stop at the positions
stored in that button.
Front door closed
– Press and hold one of the memory buttons
(1-3) until the seat, door mirrors and head-
up display stop in the positions stored in that
memory button.
If the memory button is released, the seat, door
mirrors and head-up display will stop moving.
WARNING •
Because the front seats can be adjusted
with the ignition off, children should never
be left unattended in the vehicle.
• Movement of the seat can be STOPPED
at any time by pressing any button on the
power seat control panel.
• Do not adjust the seat while driving.
• The seat should be adjusted so that the
brake pedal can be depressed fully. In
addition, position the seat as far rearward
as comfort and control allow.
• The seat rails on the floor must not be
obstructed in any way when the seat is in
motion.
Related information
• Manual front seats (p. 184)
• Power front seats* (p. 185)
• Adjusting the power front seats* (p. 185)
• Storing memory settings in power front
seats* (p. 186)
• Adjusting front seat massage settings*
(p. 188)
• Adjusting front seat cushion length (p. 189)
• Front seat massage settings* (p. 188)
• Adjusting front seat side bolster settings*
(p. 190) •
Adjusting front seat lumbar support* (p. 190)
• Adjusting the passenger seat from the driv-
er's seat* (p. 191)

SEATS AND STEERING WHEEL
* Option/accessory.
192 •
Adjusting front seat side bolster settings*
(p. 190)
• Adjusting front seat lumbar support* (p. 190) Folding the second row backrests
The second row of seats has three individual
seating positions. The backrests can be folded
down separately.
WARNING •
Adjust the seat and ensure it locks into
position before driving. Use caution when
adjusting the seat. Uncontrolled or care-
less adjustments could lead to injury.
• Long objects must always be securely
tied down to help prevent injury or dam-
age in the event of sudden braking.
• Always turn off the engine and apply the
parking brake when loading or unloading
the vehicle.
• Put the gear selector in P to help prevent
the gear selector from being inadvertently
moved.
CAUTION When the backrest is folded down, make sure
there are no objects in the rear seat, and the
seat belts are not buckled. Otherwise there is
a risk of damage to the upholstery.
CAUTION The seat cushion of the integrated child
restraint* must be in the stowed position
before the center seat backrest can be folded
down.
The armrest* in the center seat must be
raised before the seat backrest is folded
down.
If the vehicle has private locking*, the ski
hatch must be closed before the seat back-
rest is folded down.
NOTE The front seats may need to be pushed for-
ward and/or the backrest adjusted so that the
rear seat backrests can be fully lowered.
The rear seats may also need to be moved
rearward.
The seats in the second row must be in the
upright position before they can be folded
down completely. They should not be folded
down when they are tilted forward to access
the third row of seats.

||SEATS AND STEERING WHEEL
* Option/accessory.
196
WARNING •
Adjust the seat and ensure it locks into
position before driving. Use caution when
adjusting the seat. Uncontrolled or care-
less adjustments could lead to injury.
• Long objects must always be securely
tied down to help prevent injury or dam-
age in the event of sudden braking.
• Always turn off the engine and apply the
parking brake when loading or unloading
the vehicle.
• Put the gear selector in P to help prevent
the gear selector from being inadvertently
moved.
Related information
• Folding the second row backrests (p. 192)
• Adjusting the second row head restraints
(p. 194)
• Adjusting the second row backrest tilt
(p. 196)
• Getting into and out of the third row of
seats* (p. 197)
• Folding the third row backrests* (p. 198) Adjusting the second row backrest
tilt
Backrest tilt can be adjusted separately for each
seat in the second row.
Center seat 1. Pull the strap on the right side of the center
seat.
2.

Adjust backrest tilt forward/backward by
decreasing/increasing pressure on the back-
rest.
3. Release the strap to lock the backrest in its new position and press on the backrest until
the lock engages.
Check to make sure the seat is securely locked
into place after its position has been changed.
Outboard seats 1. Pull the handle on the side of the seat
upward.
2.

Adjust backrest tilt forward/backward by
decreasing/increasing pressure on the back-
rest.
3. Release the handle to lock the backrest in its new position and press on the backrest until
the lock engages.
Check to make sure the seat is securely locked
into place after its position has been changed.

SEATS AND STEERING WHEEL
* Option/accessory.197
WARNING•
Adjust the seat and ensure it locks into
position before driving. Use caution when
adjusting the seat. Uncontrolled or care-
less adjustments could lead to injury.
• Long objects must always be securely
tied down to help prevent injury or dam-
age in the event of sudden braking.
• Always turn off the engine and apply the
parking brake when loading or unloading
the vehicle.
• Put the gear selector in P to help prevent
the gear selector from being inadvertently
moved.
Related information
• Folding the second row backrests (p. 192)
• Adjusting the second row head restraints
(p. 194)
• Moving the second row seats forward/rear-
ward* (p. 195)
• Getting into and out of the third row of
seats* (p. 197)
• Folding the third row backrests* (p. 198) Getting into and out of the third row
of seats*
The second row of seats can be adjusted for
easier access to the third row of seats*. To fold down the backrest:
1.
Pull the handle on the upper side of the right
or left outboard second row seat upward/
forward.
2. Fold the backrest down and move the entire seat forward.
To return the seat to the upright position:
– Push the seat rearward to its end position.
The backrest should then easily return to the
correct position.
NOTE If a backrest in the second row of seats does
not lock back into the upright position after
being folded down (e.g. for getting in or out of
the third row of seats), it may need to be
pushed forward again and then pushed back
with more force.
WARNING
Make sure that the rear seat backrest and
head restraint are locked securely in place
after the seat is folded up.
The head restraints at the outer seats must
always be raised when there is a passenger in
one of these spots of the rear seat.
Related information
•
Folding the second row backrests (p. 192)
• Adjusting the second row head restraints
(p. 194)
• Moving the second row seats forward/rear-
ward* (p. 195)
• Adjusting the second row backrest tilt
(p. 196)
• Folding the third row backrests* (p. 198)

DRIVER SUPPORT
* Option/accessory.
272 Driver support systems
The vehicle is equipped with a number of driver
support systems that can provide the driver with
active or passive assistance in various situations.
The system can, for example, help the driver
maintain a set speed or a set time interval to the
vehicle ahead, help prevent a collision by warning
the driver and applying the brakes, or assist the
driver while parking.
Some of the systems are standard and others are
options. This also varies from market to market.
Related information
• Speed-dependent steering wheel resistance
(p. 272)
• Electronic Stability Control (p. 274)
• Stability system Roll Stability Control
(p. 273)
• Rear Collision Warning (p. 347)
• Speed limiter (p. 278)
• Cruise control (p. 286)
• Distance Alert* (p. 291)
• Adaptive Cruise Control* (p. 295)
• Pilot Assist (p. 311)
• Radar sensor (p. 326)
• Camera (p. 331)
• City Safety™ (p. 335)
• BLIS* (p. 348) •
Cross Traffic Alert* (p. 353)
• Road Sign Information* (p. 357)
• Driver Alert Control (p. 362)
• Lane Keeping Aid (p. 364)
• Steering assistance at risk of collision
(p. 372)
• Park Assist* (p. 381)
• Park Assist Camera* (p. 386)
• Park Assist Pilot* (p. 395) Speed-dependent steering wheel
resistance
Speed-dependent power steering increases the
steering wheel resistance in pace with the vehi-
cle's speed to give the driver an enhanced feel-
ing of control and stability.
Steering may feel stiffer on highways. When
parking and at low speeds, it will be easier to
move the steering wheel.
NOTE In some situations, the power steering may
become too hot and require temporary cool-
ing – during such time the power steering will
work at reduced output and the steering
wheel may feel more difficult to move.
In parallel with the temporarily reduced steer-
ing assistance, the driver display shows a
message as well as a STEERING WHEEL
symbol.