2019 VOLVO XC90 TWIN ENGINE engine

STARTING AND DRIVING
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457
This drive mode is optimized for maximum control
when driving at low speeds on very poor roads or
difficult terrain. It raises the chassis
3
, reduces
driveline throttle response, and locks the vehicle
in all-wheel drive. The Hill Descent Control func-
tion facilitates controlled driving on steep down-
grades.
NOTE This drive mode is not designed to be used
for normal street driving.
NOTE
Due to the increased ground clearance, if the
OFF ROAD mode was selected when the
engine was switched off, the suspension will
lower when the engine is restarted.
CAUTION
Do not use the OFF ROAD drive mode when
towing a trailer without an electrical connec-
tion. This could result in damage to the pneu-
matic suspension system's bellows.
AWD

Improves the vehicle's traction and handling
by increasing all-wheel drive. This drive mode locks the vehicle in all-wheel
drive. An optimal distribution between front and
rear axle torque helps provide the best possible
control, stability and traction, e.g. on slippery
roads or when towing a heavy trailer or another
vehicle. The AWD drive mode is always available
regardless of the hybrid battery's charge status.
Both the combustion engine and the electric
motor are engaged to enable all-wheel drive,
which results in higher fuel consumption.
In the other drive modes, the vehicle automati-
cally adapts the need for all-wheel drive accord-
ing to the road surface, and can activate the elec-
tric motor or start the combustion engine as nee-
ded.
POWER

Power mode is designed to provide sportier
driving characteristics and a faster accelera-
tion response.
This drive mode maximizes the combined power
from the combustion engine and the electric
motor by providing power to both the front and
rear wheels. Gear shifting will be faster and more
distinct and the transmission will prioritize gears
with a higher traction force. Steering response is
faster, suspension is stiffer and ground clearance
is lower 3
to help reduce body roll when cornering. Both the combustion engine and the electric
motor are engaged to enable all-wheel drive,
which results in higher fuel consumption.
This drive mode is optimized for maximum per-
formance and throttle response. It changes the
throttle response, gear shifting program and
turbo boost system. Chassis settings and steer-
ing and brake response are also optimized. The
Power drive mode is always available regardless
of the hybrid battery's charge status.
3
For vehicles with pneumatic suspension.

||STARTING AND DRIVING
458
INDIVIDUAL

Customizes drive mode to personal preferen-
ces.
Select one of the drive modes as a basis and
adjust the settings to achieve your preferred driv-
ing characteristics. These settings will be stored
in your driver profile.
Individual drive mode is only available if it has
been activated in the center display. Settings view
4
for Individual drive mode.
1. Tap Settings in the Top view.
2.

Tap My Car Individual Drive Mode
and
select Individual Drive Mode. 3.
Under Presets, select one of the following
drive modes as a basis: Pure, Hybrid or Power.
The following settings can be modified:
Driver Display
Steering Force
Powertrain Characteristics
Brake Characteristics
Suspension Control
ECO Climate.
Using the electric or combustion
engine
An advanced control system determines the dis-
tance that the vehicle can be driven on the com-
bustion engine, electric motor, or both at the
same time.
Its primary function is to use the motor/engine
and the current available in the hybrid battery as
efficiently as possible based on the characteris-
tics of the various drive modes and the power
output requested by the driver by pressing the
accelerator pedal.
In certain cases, temporary limitations in the sys-
tem or mandatory functions to help maintain a
low overall emissions level may result in greater
use of the combustion engine. 4
The image is schematic and the details may vary depending on vehicle mod\
el or software update.

STARTING AND DRIVING
* Option/accessory.459
Related information
Changing drive mode (p. 459)
Economical driving (p. 467)
Energy distribution in hybrid mode using map
data* (p. 460)
Hybrid gauge (p. 87)
General information about Twin Engine
(p. 416) Changing drive mode
Select the drive mode that is best suited to the
current driving conditions.
The drive mode is changed using the control in
the tunnel console.
Keep in mind that not all drive modes are availa-
ble in all situations.
To change drive mode: 1.
Press the DRIVE MODE control.
>

A pop-up menu will appear in the center
display.
2. Roll the wheel upward or downward to the desired drive mode. 3. Press the drive mode control or tap its button
in the center display to confirm the selection.
> The selected drive mode is shown in theinstrument panel.
If a drive mode is grayed out in the pop-up menu,
it cannot be selected.
Related information
Drive modes (p. 454)
Activating and deactivating Low Speed Con-
trol using the function button (p. 465)
Activating and deactivating Hill Descent Con-
trol using the function button (p. 467)

STARTING AND DRIVING
* Option/accessory.
460 Energy distribution in hybrid mode
using map data*
The Hybrid drive mode is the vehicle's default
drive mode in which the electric motor and the
combustion engine work separately or together
in hybrid mode. If a destination has been
selected in the navigation system*, the Predictive
Efficiency 5
function can use map data to effec-
tively distribute the electric power throughout the
trip.
This can lower fuel consumption in comparison
with normal hybrid mode, in which the vehicle first
runs on electricity and then switches to the com-
bustion engine when the hybrid battery is dis-
charged.
If the distance to the destination is greater than
the calculated range on the electric motor, the
function will distribute electric power optimally for
the entire trip. This makes it possible to avoid sit-
uations in which normal hybrid mode would oth-
erwise use a large portion of the electric power
to e.g. use the electric motor at high speeds on a
highway and then use the combustion engine at
lower speeds during city driving.
The greatest fuel savings are attained when the
trip begins on a highway, is between 50 and 100
km (30 and 60 miles) long, and the hybrid battery
is fully charged at the start of the trip.
Requirements for the functionCertain conditions must be met for the function
to be possible: A destination must be set in the navigation
system and the distance to the destination
must be longer than the possible range
using only the electric motor.
Hybrid drive mode must be selected.
The
Hold and Charge functions must be
disabled.
The hybrid battery must be charged.
Usage tipsIf you commute and it is not possible to charge
the vehicle at work, enter your workplace as a
waypoint and your home as the destination. Dis-
charging of the hybrid battery will then be distrib-
uted over the entire commute to and from work.
Add similar commutes, i.e. the route between two
charges, as
Favorites in the navigation system to
facilitate access.
Related information
Drive modes (p. 454)
Economical driving (p. 467) 5
Certain markets only.

STARTING AND DRIVING
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* Option/accessory. 461
Leveling control* and suspension
The vehicle's leveling control system adjusts the
suspension and shock absorbers automatically
to help provide good comfort and control while
driving. Leveling can also be controlled manually
to facilitate loading or getting in and out of the
vehicle.
Pneumatic suspension and shock
absorbers
The system is adapted to the selected drive
mode and vehicle speed. The pneumatic suspen-
sion reduces the vehicle's ground clearance at
higher speeds to reduce air resistance and
increase stability. The shock absorbers are nor-
mally set to provide the best possible comfort
and are adjusted continuously according to the
road surface and the vehicle's acceleration, brak-
ing and cornering. The instrument panel indicates
when the suspension level is
being adjusted.The following apply if a door or the tailgate is
opened:
If a door is opened, the level can only be
adjusted upwards.
If the tailgate is open, the level can only be
adjusted downwards.
ParkingWhen parking, make sure that there is adequate
space above and below the vehicle since ground
clearance may vary depending on e.g. ambient temperature, how the vehicle is loaded, if loading
mode is used, which drive mode is selected after
the engine is started, etc.
The level may also be adjusted a period after the
vehicle is parked. This is to compensate for any
height changes that may occur due to tempera-
ture changes in the air springs when the vehicle
cools.
TransportingWhen transporting the vehicle on a ferry, train or
truck, only secure (lash) the vehicle around the
tires, not using any other parts of the chassis.
Changes in the pneumatic suspension may occur
during transport, which could adversely affect the
lashing and result in damage.

STARTING AND DRIVING
* Option/accessory.
464 Leveling control settings*
Turn off leveling control before lifting the vehicle
with a jack to help avoid problems with the
pneumatic suspension.
The vehicle can be lowered or raised to make it
easier to load or for passengers to get in and
out.
Adjusting loading mode Use the buttons in the cargo compartment to
raise or lower the rear section of the vehicle to
facilitate loading or unloading the vehicle or con-
necting or disconnecting a trailer.
Center display settings
Easy Entry and Exit Suspension Control
The vehicle can be lowered to make it easier to
get in and out.
Activating easy entry in the center display: 1.
Tap Settings in the Top view.
2.

Tap My Car Mirrors and Convenience
.
3. Select Easy Entry and Exit Suspension
Control.
>

When the vehicle is parked and the
engine is turned off, the level is lowered.
(Level adjustment will stop if a side door
is opened and will resume after a slight
delay when the door has been closed.)
When the engine is started and the vehi-
cle begins to move, the level will be raised
to the height set by the selected drive
mode.
Disable Leveling Control
In certain situations, this function must be turned
off, e.g. before the vehicle is raised using a jack*.
The level difference caused by raising the vehicle
with a jack could cause problems with the pneu-
matic suspension.
Turning off the function in the center display:
1. Tap Settings in the Top view.
2.

Tap My Car Parking Brake and
Suspension .
3. Select Disable Leveling Control.
Related information
Leveling control* and suspension (p. 461)
Loading recommendations (p. 598) Low Speed Control
The low-speed function, Low Speed Control
(LSC), facilitates and improves control and trac-
tion on rough roads and slippery surfaces, e.g.
when towing a trailer on grass or up boat ramps.
The function is included in the Off Road drive
mode.
Low Speed Control is designed for driving on
rough roads and when towing trailers at low
speeds, up to approximately 40 km/h (25 mph).
When driving at low speeds, LSC prioritizes low
gears and all-wheel drive to help avoid wheel spin
and improve traction on all wheels. The accelera-
tor pedal will be less responsive to improve trac-
tion and speed control at low speeds.
The function is activated together with Hill
Descent Control (HDC), which makes it possible
to control speed going down steep hills using the
accelerator pedal and reduces the need to use
the brake pedal. The system makes it possible to
maintain a low and uniform speed when driving
down steep hills.

STARTING AND DRIVING
465
NOTEWhen LSC with HDC is activated in the OFF
ROAD drive mode, the feel of the accelerator
pedal and engine response will change.
NOTE
This drive mode is not designed to be used
for normal street driving.
NOTE
The function is deactivated when driving at
high speeds and must be reactivated at lower
speeds if so desired.
Related information

Activating and deactivating Low Speed Con-
trol using the function button (p. 465)
Changing drive mode (p. 459)
Hill Descent Control (p. 466)
All Wheel Drive (AWD) (p. 452) Activating and deactivating Low
Speed Control using the function
button
There is a function button for driving at low
speeds with Hill Descent Control in the center
display's Function view if the vehicle is not
equipped with a drive mode control in the tunnel
console.
Selecting Low Speed Control in the
center display's Function view
– Tap the Hill Descent Control button to
activate or deactivate the function. > An indicator light in the button will illumi-
nate when the function is activated.
When the engine is switched off, the function will
be automatically deactivated.
NOTE The function is deactivated when driving at
high speeds and must be reactivated at lower
speeds if so desired.
Related information

Low Speed Control (p. 464)
Changing drive mode (p. 459)

STARTING AND DRIVING
466Hill Descent Control
The function for assisting when driving downhill,
Hill Descent Control (HDC), is a low-speed
function with increased engine braking. The
function makes it possible to increase or
decrease the vehicle's speed on steep downhill
gradients by only using the accelerator pedal,
without applying the brakes.
The function is included in the Off Road drive
mode.
HDC is designed for driving on rough roads at
low speeds and downhill gradients with slippery
or otherwise difficult road surfaces. The driver
does not need to use the brake pedal but can
instead focus on steering.
WARNING
HDC is only intended to be a supplementary
braking aid and it does not function in all sit-
uations.
The driver is always ultimately responsible for
operating the vehicle in a safe manner.
FunctionHill Descent Control allows the vehicle to move
forward or backward at very low speeds assisted
by the brake system. The driver can increase the
speed by pressing the accelerator pedal. When
the accelerator pedal is released, the vehicle will
return to very low speed regardless of how steep the hill is and without the brakes needing to be
applied. The brake lights will illuminate when the
function is activated.
The driver can brake to stop or slow the vehicle
at any time by depressing the brake pedal.
HDC is activated along with Low Speed Control
(LSC), which facilitates and improves traction and
control on rough and slippery surfaces. The sys-
tem is intended to be used at low speeds, up to
approximately 40 km/h (25 mph).
To keep in mind when using HDC

If the function is switched off while driving on
a steep downhill gradient, braking effect will
be gradually reduced.
HDC can be used in gear positions D and R,
and in manual gears 1 or 2.
It is not possible to manually shift to third
gear or higher when HDC is active.
NOTE When LSC with HDC is activated in the OFF
ROAD drive mode, the feel of the accelerator
pedal and engine response will change.
NOTE
This drive mode is not designed to be used
for normal street driving.
NOTE The function is deactivated when driving at
high speeds and must be reactivated at lower
speeds if so desired.
Related information

Activating and deactivating Hill Descent Con-
trol using the function button (p. 467)
Changing drive mode (p. 459)
Low Speed Control (p. 464)
All Wheel Drive (AWD) (p. 452)