ECO mode VOLVO XC90 TWIN ENGINE 2019 Workshop Manual

STARTING AND DRIVING
438Selecting ignition mode
The vehicle's ignition can be put in various
modes (levels) to make different functions availa-
ble.
Selecting an ignition mode Start knob in the tunnel console.

Ignition mode 0 - Unlock the vehicle and
keep the remote key in the passenger com-
partment.
NOTE To set level I or II without engine start – do
not depress the brake pedal (or clutch pedal
for vehicles with manual transmission) when
selecting this ignition mode.
Ignition mode I - Turn the start knob clock-
wise and release it. The control will automati-
cally return to the original position.
Ignition mode II - Turn the start knob clock-
wise and hold it there for approx. 5 seconds.
Release the knob, which will automatically
return to its original position.
Back to ignition mode 0 - To return to igni-
tion mode 0 from mode I and II, turn the start
knob clockwise and release it. The control
will automatically return to the original posi-
tion.
Related information
Starting the vehicle (p. 434)
Switching off the vehicle (p. 436)
Ignition modes (p. 437)
Adjusting the steering wheel (p. 201)
Jump starting using another battery (p. 481) Brake functions
The vehicle's brakes are used to reduce speed
or prevent the vehicle from rolling.
In addition to the wheel brakes and parking
brakes, the vehicle is also equipped with a num-
ber of automatic brake assist functions. These
systems help the driver by e.g. keeping the vehi-
cle stationary when the brake pedal is not
depressed (e.g. at a traffic light or intersection),
when starting up a hill or when driving down a hill.
Depending on how the vehicle is equipped, the
following brake assist functions may be included:
Auto-hold brakes (Auto Hold)
Hill Start Assist (Hill Start Assist)
Braking assist after a collision
City Safety
Hill Descent Control (Hill Descent Control)
Related information
Brakes (p. 439)
Parking brake (p. 442)
Auto-hold brakes (p. 446)
Braking assist after a collision (p. 447)
Hill Start Assist (p. 447)
City Safety™ (p. 341)
Hill Descent Control (p. 466)

||STARTING AND DRIVING
* Option/accessory.
448
Related information
Rear Collision Warning (p. 354)
BLIS* (p. 355)
Brake functions (p. 438) Transmission
The transmission is part of the vehicle's driveline
(power transmission) between the engine and
the drive wheels. The function of the transmis-
sion is to change gears depending on speed
and power needs.
The vehicle has an 8-speed automatic transmis-
sion and an electric motor for rear-wheel drive.
The number of gears allows the engine's torque
and power band to be effectively utilized. Two of
the gears are overdrive gears that save fuel when
driving at a constant engine speed. The steering
wheel paddles* can be used to shift up or down
manually. The instrument panel shows the gear
currently in use.
CAUTION Check the operating temperature of the
transmission to help avoid damage to any of
the drive system components. If there is a risk
of overheating, a warning symbol will appear
in the instrument panel and a text message
will be displayed. Follow the recommenda-
tions given.
Symbols in the instrument panelIf a problem should occur with the transmission, a
symbol and a message will appear in the instru-
ment panel. Symbol
Meaning Information and messages related
to the transmission. Follow the rec-
ommendations provided.
Hot or overheated transmission.
Follow the recommendations provi-
ded.
Reduced performance/Acceler-
ation performance reduced
In the event of a temporary fault in
the driveline, the vehicle may go
into a "limp home" mode with
reduced power output to help avoid
damage to the driveline.
Related information
Gear selector positions for automatic trans-
missions (p. 449)

||STARTING AND DRIVING
* Option/accessory.
450 Help functions
The system will automatically shift to P:
if the ignition is switched off while D or R is
selected.
if the driver unbuckles the seat belt and
opens the driver's door while the vehicle is
running with the gear selector in a gear other
than P.
To park a vehicle with an unbuckled seat belt and
open door – end P mode by shifting to R or D
again.
The system will not automatically shift to P if the
ignition is switched off while the gear selector is
in the neutral position (N). This is to make it pos-
sible to wash the vehicle in an automatic car
wash in which the vehicle is pulled forward on
rolling wheels.
Reverse - R
Select R when backing up. The vehicle must be
stationary when Reverse is selected.
Neutral - N
No gear is selected and the engine can be
started. Apply the parking brake if the vehicle is
stationary with the gear selector in N.
To move the gear selector from Neutral to
another gear, the brake pedal must be depressed
and the ignition in mode II.
D drive mode
D is the normal driving gear position. The trans-
mission shifts up or down automatically depend- ing on acceleration and speed. The vehicle must
be stationary when the gear selector is moved
from R to D.
Brake - B
B can be selected at any time during a drive. In B
mode, the engine braking function is activated
when the accelerator pedal is released, which
helps charge the hybrid battery. This offers addi-
tional opportunities to recharge the hybrid bat-
tery, since the battery is charged even when the
brake pedal is not depressed. B mode in the instrument panel.
From B mode, it is possible to manually shift to
lower gears. The currently selected gear (1-8) will
be displayed in the instrument panel.
Pull the gear selector backward once to shift
down one gear.
Pull the gear selector backward again to shift
down to lower gears. To shift manually to a higher gear, the vehicle
must be equipped with steering wheel paddles*.
Push the gear selector forward to return to D
mode.
For smooth shifting and engine performance, the
transmission will shift down automatically if the
vehicle's speed becomes too low for the selected
gear.
Related information
Shiftlock (p. 452)
Using the steering wheel paddles* to shift
(p. 451)
The kickdown function (p. 452)

STARTING AND DRIVING
452Shiftlock
The automatic transmission's shiftlock function
helps prevent inadvertently moving the gear
selector between different positions.
Automatic shiftlockThe automatic shiftlock has a separate safety
system.
From Park - P
To move to another gear from P (Park), the brake
pedal must be depressed and the ignition in
mode II.
From Neutral - N
If the gear selector is in N and the vehicle has
been stationary for at least 3 seconds (with or
without the engine running), the gear selector will
be locked in that position.
To move the gear selector from N to another
gear, the brake pedal must be depressed and the
ignition in mode II.
Messages in the instrument panelIf the gear selector is locked in position, a mes-
sage will appear in the instrument panel, e.g.
Gear lever Press brake pedal to activate
gear lever.
There is no mechanical shiftlock function.
Related information
Gear selector positions for automatic trans-
missions (p. 449) The kickdown function
Kickdown is used when maximum acceleration is
needed, e.g. when passing.
When the accelerator pedal is depressed all the
way to the floor (past the normal full accelerator
position), the transmission will automatically
engage kickdown, i.e. immediately shift down to a
lower gear.
If the accelerator pedal is released from the kick-
down position, the transmission will automatically
shift up again.
Safety function
The transmission control module is equipped with
a downshift protection feature to help prevent the
engine from overheating.
In some conditions, the transmission will prevent
downshifting/kickdown if this would lead to such
high engine speed (rpm) that the engine could
be damaged. If the driver still attempts downshift-
ing or kickdown at a high rpm, nothing will hap-
pen and the original gear will remain selected.
With kickdown, the vehicle can downshift one or
more steps at a time depending on the engine
speed. The vehicle upshifts when the engine rea-
ches its maximum rpm to prevent engine dam-
age.
Related information
Gear selector positions for automatic trans-
missions (p. 449) 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.
All-wheel drive reacts differently depending on
which drive mode is selected.
Related information
Drive modes (p. 454)
Low Speed Control (p. 464)
Transmission (p. 448)

STARTING AND DRIVING
453
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
2
- Charges the hybrid
battery. Starter for the combustion engine. Can provide the combustion engine with
extra electrical current. Electric motor - Powers the vehicle using
electricity. Can provide extra torque and
power during acceleration. Provides electrical
all-wheel drive functionality. Regenerates
braking energy into electrical current.
Related information

General information about Twin Engine
(p. 416)
Starting and stopping the combustion engine
in Twin Engine vehicles (p. 454)
Drive modes (p. 454)
Transmission (p. 448)
Factors affecting electric motor range
(p. 469) 2
CISG (Crank Integrated Starter Generator) - Combined high-voltage gene\
rator and starter.

STARTING AND DRIVING
* Option/accessory.
454 Starting and stopping the
combustion engine in Twin Engine
vehicles
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. When driving on only the electric
motor, the vehicle may automatically start the
combustion engine due to outside circumstan-
ces, e.g. low ambient temperatures. This is com-
pletely normal. The combustion engine will also
always start when the hybrid battery is nearly
fully discharged.
Climate settings at low temperaturesAt low ambient temperatures, the combustion
engine will sometimes start automatically to help
achieve the desired passenger compartment
temperature and air quality. The amount of time
the combustion engine is running can be affec-
ted by:
lowering the temperature
reducing blower speed
activating Pure drive mode.
Using the electric motor in hot or cold
weather
At very low or high ambient temperatures, the
electric motor's driving range and power may be
reduced and affect how often the combustion
engine automatically starts.
Emission control systemTo help ensure that the emission control system
functions optimally, the combustion engine will
run for several minutes after it is started. The
amount of time the combustion engine needs to
be used varies depending on the temperature of
the three-way catalytic converter.
WARNING California Proposition 65
Operating, servicing and maintaining a pas-
senger vehicle can expose you to chemicals
including engine exhaust, carbon monoxide,
phthalates, and lead, which are known to the
State of California to cause cancer and birth
defects or other reproductive harm. To mini-
mize exposure, avoid breathing exhaust, do
not idle the engine except as necessary, serv-
ice your vehicle in a well ventilated area and
wear gloves or wash your hands frequently
when servicing your vehicle. For more infor-
mation go to www.P65Warnings.ca.gov/
passenger-vehicle.
Related information

Drive systems (p. 453)
Economical driving (p. 467)
Using the electric motor only (p. 469)
Drive modes (p. 454) Drive modes
Drive modes affect the vehicle's driving charac-
teristics in different ways to enhance and sim-
plify the driving experience in certain types of sit-
uations.
Drive modes enable easy access to the vehicle's
many functions and settings in different driving
situations. The following systems are adapted to
help optimize driving characteristics in each drive
mode:
Steering
Engine/transmission/all-wheel drive
Brakes
Pneumatic suspension* and shock absorbers
Instrument panel
Climate control settings
Select the drive mode that is best suited to the
current driving conditions. Keep in mind that not
all drive modes are available in all situations.

||STARTING AND DRIVING
456
PURE

Uses the electric motor only, with the lowest
possible energy consumption and carbon
dioxide emissions.
This drive mode maximizes the use of the hybrid
battery. Ground clearance is lowered 3
to reduce
air resistance and certain climate system func-
tions are reduced to provide the longest possible
driving distance using only electricity.
Pure mode is available when the hybrid battery is
sufficiently charged. Even in Pure mode, the com-
bustion engine will start if the charge level in the
battery gets too low. The combustion engine will
also start
if the vehicle's speed goes above 125 km/h
(78 mph)
if the driver requests more power than the
electric motor can provide
if factors such as cold weather affect the
system or components.
This drive mode is optimized for maximum driving
distance with electric propulsion and is primarily
intended for use in city driving. Pure helps pro-
vide the lowest possible consumption even when
the hybrid battery is fully discharged. ECO climate
is activated to control the climate in the passen-
ger compartment, and in slippery road conditions
slightly more wheel spin may be permitted before
all-wheel drive is automatically activated.
ECO Climate
In Pure mode, ECO climate is automatically acti-
vated in the passenger compartment to help
reduce energy consumption.
NOTE When the
Pure drive mode is activated, set-
tings for certain climate system and electricity
consuming functions are reduced. Some of
these settings can be reset manually, but full
functionality will only be restored by leaving
Pure mode or adapting the Individual drive
mode to full climate system functionality. If condensation forms on the windows, tap the
max defroster button, which will function normally.
OFF ROAD

Maximizes the vehicle's ability to traverse dif-
ficult terrain or poor roads.
In this mode, ground clearance 3
is high, steering
is light, and all-wheel drive and Hill Descent
Control are activated.
This drive mode is only available at low speeds,
up to 40 km/h (25 mph). If this speed is excee-
ded, Off road mode will be cancelled and AWD
mode will be activated instead. All-wheel drive requires both the combustion and
electric motor to be in continuous operation,
which results in higher fuel consumption.
In Off road mode, a compass will be displayed
between the speedometer and the tachometer in
the instrument panel. The permissible speed
range will be shown in the speedometer.
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.