2018 VOLVO XC90 TWIN ENGINE four wheel drive

DISPLAYS AND VOICE CONTROL
91
1. Open the app menu in the instrument panel
by pressing (1).
(The App menu cannot be opened while
there is an unacknowledged message in the
instrument panel. The message must be con-
firmed before the App menu can be opened.)
2. Navigate to the trip computer app by moving left or right using (2).
> The top four menu rows show measuredvalues for trip odometer TM. The next four
menu rows show measured values for trip
odometer TA. Scroll up or down in the list
using (3).
3. Scroll down to the option buttons to choose which information to show in the instrument
panel:
• Distance to empty tank
• Odometer
• Mileage for trip odometer TM, TA or no
display of mileage
• Current fuel consumption, average fuel
consumption for TM or TA, or no display
of fuel consumption
• Tourist (alternative speedometer).
• Distance to discharged battery
Select or clear a selection using the O but-
ton (4). The change will apply immediately.
Related information
• Trip computer (p. 89)
• Resetting the trip odometer (p. 91) Resetting the trip odometer
Resetting the trip odometer using the left-side
steering wheel lever. –
Reset all information in trip odometer TM (i.e.
mileage, average fuel consumption, average
speed and driving time) by pressing and
holding the RESET button on the left-hand
steering wheel lever.
Tapping the RESET button only resets the
distance driven.
The TA trip odometer can not be manually reset.
It resets automatically if the vehicle is not used
for four hours or more.
Related information
• Trip computer (p. 89)

SEATS AND STEERING WHEEL
}}
* Option/accessory. 191
2.
Select Lumbar in the seat settings view.
• Press the four-way button (the round but-
ton) up/down to move the lumbar support
upward/downward.
• Press the front part of the four-way button
to increase lumbar support.
• Press the rear part of the four-way button
to decrease lumbar support.
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)
• Using stored memory in a powered front seat
(p. 187)
• 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 the passenger seat from the driv-
er's seat* (p. 191) Adjusting the passenger seat from
the driver's seat*
The front passenger seat can be adjusted from
the driver's seat.
Activating the functionThe function is activated via the function view in
the center display:
Tap the Adjust PassengerSeat button to activate.
Adjust passenger seatThe driver must adjust the passenger seat within
10 seconds of activating the function. If no
adjustment is made within this time, the function
will be deactivated.
The driver adjusts the passenger seat using the
controls on the driver's seat: Move the passenger seat forward/rearward
by moving the control forward/rearward.
Change the backrest tilt of the passenger
seat by moving the control forward/back-
ward.
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)
• Using stored memory in a powered front seat
(p. 187)
• Adjusting front seat massage settings*
(p. 188)
• Adjusting front seat cushion length (p. 189)
• Front seat massage settings* (p. 188)

CLIMATE CONTROL
}}
* Option/accessory. 215
Climate controls on the rear side of the
tunnel consoleRear seat heating control*.
Blower control for rear seats.
Rear seat temperature control.
Button for locking/unlocking climate panel.
The climate panel has a screen lock to help pre-
vent inadvertently changing blower speed and
temperature. When the screen is locked, only the
controls for seat adjustment* and the unlock but-
ton will be displayed.
After unlocking, blower speed and temperature
can also be changed from the climate panel and
all selected climate settings will be displayed. The
screen locks automatically after a period of inac-
tivity.Related information
• Climate (p. 202)
• Activating and deactivating power front
seats* (p. 215)
• Activating and deactivating the heated rear
seats* (p. 216)
• Activating and deactivating front seat ventila-
tion* (p. 217)
• Activating and deactivating the heated steer-
ing wheel* (p. 218)
• Activating auto climate control (p. 219)
• Activating and deactivating recirculation
(p. 219)
• Activating and deactivating max defroster
(p. 220)
• Activating and deactivating the heated wind-
shield* (p. 222)
• Activating and deactivating the heated rear
window and door mirrors (p. 223)
• Setting the blower speed for the front seats
(p. 224)
• Setting the blower speed for the rear seats
(p. 225)
• Synchronize temperature (p. 228)
• Activating and deactivating air conditioning
(p. 228)
• Activating and deactivating climate control
for the third-row seats* (p. 229) Activating and deactivating power
front seats*
The seats can be heated for added comfort for
the driver and passengers in cold weather. Steering wheel and seat buttons in the climate row.
1. Tap the left- or right-side steering wheel and
seat button in the center display's climate
bar to open the controls for steering wheel
and seat heating.
If the vehicle is not equipped with ventilated
seats or heated steering wheel, the button
for seat heating is directly accessible in the
climate bar.
2.

Tap the seat heating button repeatedly to
select one of the four levels: Off,
High,
Medium or Low.
>
The level is changed and the set level is
displayed in the button.

CLIMATE CONTROL
* Option/accessory.
218 Activating and deactivating the
heated steering wheel*
The steering wheel can be heated for added
comfort in cold weather. Steering wheel and seat buttons in the climate row.
1. Tap the driver's side steering wheel and seat
button in the climate bar in the center display
to open the controls for steering wheel and
seat heating.
If the vehicle is not equipped with heated or
ventilated seats, the button for steering
wheel heating is directly accessible in the cli-
mate bar.
2.

Tap the steering wheel heating button
repeatedly to select one of the four levels:
Off
, High, Medium or Low.
>
The level is changed and the set level is
displayed in the button.
Related information
• Climate system controls (p. 213)
• Activating and deactivating automatic steer-
ing wheel heating* (p. 218) Activating and deactivating
automatic steering wheel heating*
The steering wheel can be heated for added
comfort in cold weather. Steering wheel heating can be set to automati-
cally activate when the engine is started. When
set to automatically activate, heating will be
turned on at low ambient temperatures.
1. Tap Settings in the Top view in the center
display.
2. Tap Climate.
3. Select Auto Steering Wheel Heating
Level to activate/deactivate automatic start
of heated steering wheel.
4. Select Low, Medium or High to select level
after the function has been activated.
Related information
• Activating and deactivating the heated steer-
ing wheel* (p. 218)

STARTING AND DRIVING
}}
443
All Wheel Drive (AWD)
All-wheel drive, All Wheel Drive (AWD), also
called four-wheel drive, means that power is dis-
tributed to all four wheels, which improves trac-
tion.
The electric motor that powers the rear wheels
enables electronic all-wheel drive functionality.
To achieve the best traction, power is automati-
cally directed to the wheels that have the best
grip. The system continuously calculates the
need for torque to the rear wheels, and can
immediately redistribute up to half of the engine's
torque to the rear wheels.
All-wheel drive also has a stabilizing effect at
higher speeds. In normal driving conditions, most
of the engine's power is directed to the front
wheels. When the vehicle is stationary, all-wheel
drive is always activated in preparation for maxi-
mum traction during acceleration.
All-wheel drive reacts differently depending on
which drive mode is selected.
Related information
• Drive modes (p. 445)
• Low Speed Control (p. 453)
• Transmission (p. 438) Drive systems
Volvo Twin Engine combines a combustion
engine for the front wheels and an electric motor
for the rear wheels.
Two drive systemsDepending on the selected drive mode and
power available in the electric motor, the drive
systems can either be used separately or in tan-
dem.
The electric motor gets its energy from a hybrid
battery located under the tunnel console. The
hybrid can be charged from a wall outlet or in a
special charging station. The combustion engine
can also charge the hybrid battery using a special
high-voltage generator.
Both the combustion engine and the electric
motor can generate power directly to the wheels.
An advanced control system coordinates both the
drive systems to help optimize driving economy. Hybrid battery - The hybrid battery's function
is to store electrical current. This energy is
provided by plugging the charging cable into
an electrical outlet, through regenerative
braking or from the high-voltage generator.
This provides current to power the electric
motor and to temporarily power the electrical
air conditioning to precondition the passen-
ger compartment.
Combustion engine - The combustion engine
starts when the charge level in the hybrid
battery is too low to provide the power output
requested by the driver.
High-voltage generator
3
- Charges the hybrid
battery. Starter for the combustion engine. 2
This illustration is generic. The layout may vary depending on vehicle m\
odel and software updates.
3 CISG (Crank Integrated Starter Generator) - Combined high-voltage gene\
rator and starter.

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
550Tires
The function of the tires is to carry loads, provide
traction on road surfaces, reduce vibrations and
protect the wheels from wear. The tires significantly influence the vehicle's driv-
ing characteristics. The type, dimensions, tire
pressure and speed rating have a considerable
impact on how the vehicle performs.
Your vehicle is equipped with tires according to
the vehicle's tire information placard on the B-pil-
lar (the structural member at the side of the vehi-
cle, at the rear of the driver's door opening).
WARNING A damaged tire could cause the driver to lose
control of the vehicle.
CAUTION Some Volvo models are equipped with an
Ultra High Performance tire and wheel com-
bination designed to provide maximum dry
pavement performance with consideration for
hydroplaning resistance. They may be more
susceptible to road hazard damage and,
depending on driving conditions, may achieve
a tread life of less than 30,000 km (20,000
miles). Even if this vehicle is equipped with
Volvo's advanced AWD or stability system,
these tires are not designed for winter driving,
and should be replaced with winter tires when
weather conditions dictate.
The tires have good road holding characteristics
and offer good handling on dry and wet surfaces.
It should be noted however that the tires have
been developed to give these features on snow/
ice-free surfaces.
Most models are equipped with "all-season" tires,
which provide a somewhat higher degree of road-
holding on slippery road surfaces than tires with-
out the "all-season" rating. However, for optimal
roadholding on icy or snow-covered roads, we
recommend snow tires on all four wheels.
When replacing tires, be sure that the new tires
are the same size designation, type (radial) and
preferably from the same manufacturer, on allfour wheels. Otherwise there is a risk of altering
the vehicle's roadholding and handling characte-
ristics.
Recommended tiresOn delivery, the car is equipped with Volvo origi-
nal tires that have the VOL
1
marking on the side
of the tires. These tires have been designed spe-
cifically for your vehicle. It is therefore important
when replacing tires that the new tires have this
same marking to help maintain the vehicle's driv-
ing characteristics, comfort and fuel consumption.
New tires Tires are perishable goods. After a few years,
they will begin to harden and their friction proper-
ties will gradually deteriorate. Always replace tires
with the freshest tires possible. This is particularly
important for snow tires. A series of numbers is
1
This may vary for certain tire dimensions.

WHEELS AND TIRES
555
NOTEThe tire's load index and speed rating may
not appear on the sidewall because they are
not required by law.
7.
M+S or M/S = Mud and Snow, AT = All Ter-
rain, AS = All Season
8. U.S. DOT Tire Identification Number
(TIN): This begins with the letters "DOT" and
indicates that the tire meets all federal
standards. The next two numbers are the
factory code where the tire was manufac-
tured, the next two are the tire size code and
the last four numbers represent the week
and year the tire was made. For example,
0717 means that the tire was manufactured
during week 7 of 2017. The numbers in
between are marketing codes used at the
manufacturer's discretion. This information
helps a tire manufacturer identify a tire for
safety recall purposes.
9. Tire Ply Composition and Material Used:
Indicates the number of plies indicates or the
number of layers of rubber-coated fabric in
the tire tread and sidewall. Tire manufactur-
ers also must indicate the ply materials in the
tire and the sidewall, which include steel,
nylon, polyester, and others.
10. Maximum Load: Indicates the maximum
load in pounds and kilograms that can be
carried by the tire. Refer to the vehicle's tire information placard located on the B-Pillar
for the correct tire pressure for your vehicle.
11. Treadwear, Traction, and Temperature
grades.
12. Maximum permissible inflation pressure:
the greatest amount of air pressure that
should ever be put in the tire. This limit is set
by the tire manufacturer.
Speed SymbolA tire's Speed Symbol (SS) indicates the maxi-
mum speed for which the tire has been certified
and should be at least equivalent to the vehicle's
top speed.
Winter tires, with or without studs, are exceptions
and may use a lower SS. When winter tires are
installed, the vehicle may not be driven faster
than the tires' SS.
The vehicle's speed should always be determined
by the posted speed limit and traffic and road
conditions, not the tire's SS.
The following table indicates the maximum per-
missible speed for each SS. M 130 km/h (81 mph)
Q

160 km/h (100 mph)
T 190 km/h (118 mph)
H 210 km/h (130 mph) V 240 km/h (149 mph)
W

270 km/h (168 mph)
Y 300 km/h (186 mph)
WARNING •
The wheel and tire sizes for your Volvo
are specified to meet stringent stability
and handling requirements. Unapproved
wheel/tire size combinations can nega-
tively affect your vehicle's stability and
handling.
• Any damage caused by installation of
unapproved wheel/tire size combinations
will not be covered by your new vehicle
warranty. Volvo assumes no responsibility
for death, injury, or expenses that may
result from such installations.
Related information
•Tires (p. 550)