Volvo XC90 Recharge Plug-in Hybrid (2021 year). Manual in english - page 27

STARTING AND DRIVING

457

NOTE

When LSC with HDC is activated in the

Off Road

 drive mode, the feel of the accel-

erator 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
Control using the function button (p. 457)

•

Changing drive mode (p. 451)

•

Hill Descent Control (p. 458)

•

All Wheel Drive (AWD) (p. 444)

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 cen-

ter 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 illu-

minate 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. 456)

•

Changing drive mode (p. 451)

10

Low Speed Control

11

Hill Descent Control

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458

Hill Descent Control

The function for assisting when driving down-
hill (HDC

12

) 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 slip-
pery 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 supplemen-

tary braking aid and it does not function in

all situations.
The driver is always ultimately responsible

for operating the vehicle in a safe manner.

Function

Hill 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 acti-
vated.

The driver can brake to stop or slow the vehi-
cle at any time by depressing the brake pedal.

HDC is activated along with Low Speed Con-
trol (LSC

13

), which facilitates and improves

traction and control on rough and slippery sur-
faces. The system 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 accel-

erator 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
Control using the function button (p. 459)

•

Changing drive mode (p. 451)

•

Low Speed Control (p. 456)

•

All Wheel Drive (AWD) (p. 444)

12

Hill Descent Control

13

Low Speed Control

STARTING AND DRIVING

}}

459

Activating and deactivating Hill

Descent Control using the function

button

There is a function button for assistance on
steep gradients with 

Hill Descent Control

 in

the center display's Function view if the vehi-
cle is not equipped with a drive mode control
in the tunnel console.

Selecting Hill Descent Control in the
center display's Function view

HDC only works at low speeds.

–

Tap the 

Hill Descent Control

 button to

activate or deactivate the function.

> An indicator light in the button will illu-

minate 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

•

Hill Descent Control (p. 458)

•

Changing drive mode (p. 451)

Economical driving

To achieve the longest possible driving range,
the driver should plan the trip and adapt driv-
ing style and speed to the current situation.

Before driving

•

Whenever possible, precondition the vehi-
cle before driving by connecting the
charging cable to an electrical outlet.

•

If preconditioning is not possible when it
is cold outside, use seat and steering
wheel heating first. Avoid heating the
entire passenger compartment to reduce
the amount of current being taken from
the hybrid battery.

•

The type of tires and inflation pressure
used could affect energy consumption –
consult an authorized Volvo retailer for
advice on suitable tires.

•

Remove unnecessary items from the vehi-
cle - the heavier the load, the higher the
fuel consumption.

While driving

•

Activate 

Pure

 drive mode.

•

Activate the 

Hold

 function at high speeds

when traveling farther than is possible
using the hybrid battery's capacity.

•

Whenever possible, avoid using the

Charge

 function to charge the hybrid bat-

tery.

||

STARTING AND DRIVING

* Option/accessory.

460

•

Maintain a steady speed and a generous
following distance to traffic ahead to mini-
mize braking.

•

When braking, the hybrid battery is
charged by braking lightly using the brake
pedal.

•

Higher speeds increase energy consump-
tion because air resistance increases with
speed.

•

In a cold climate, reduce heating of the
windshield/rear window, mirrors, seats
and the steering wheel.

•

Avoid driving with the windows open.

•

Do not use the accelerator pedal to keep
the vehicle stationary on an uphill gradi-
ent. Instead, activate the auto-hold brake
function at a standstill.

•

If possible, turn off the climate system
when driving shorter distances after pre-
conditioning.

After driving

•

If possible, park in a climate-controlled
garage with vehicle charging outlets or
stations.

Related information

•

Regenerative braking

*

 (p. 438)

•

Range (p. 460)

•

Checking tire pressure (p. 571)

•

Displaying trip statistics in the center dis-
play (p. 96)

•

Auto-hold brakes (p. 436)

•

Hold and Charge (p. 462)

Range

A number of factors can affect vehicle range.
The ability to achieve a long driving range var-
ies according to the outside conditions and to
how the vehicle is driven.

The certified value for the vehicle's range
should not be considered an expected driving
range. The certified value is obtained during
special test cycles and is primarily intended to
be used for comparisons between different
vehicles.

Range in the instrument panel

When the vehicle leaves the factory, or after a
factory reset, range is based on the certified
value

Once the vehicle has been driven for a while,
range is instead based on historical driving
patterns. The amount of history used depends
on the battery's charge level. The lower the

STARTING AND DRIVING

461

charge level of the hybrid battery, the more
quickly the range adapts to changed driving
patterns.

Factors affecting driving range

There are a number of other factors in addition
to historical trip data that affect range. The
longest range is achieved under very favorable
conditions when all factors positively influence
range.

Factors affecting range include:

•

speed

•

climate control settings

•

topography

•

preconditioning

•

tires and tire pressure

•

the current traffic situation

•

temperature and weather

•

road conditions.

Range based on speed and ambient
temperature

20 °C (68 °F) ambient temperature and
passenger compartment climate control
off.
20 °C (68 °F) ambient temperature and
passenger compartment climate control
on.
35 °C (95 °F) ambient temperature and
passenger compartment climate control
on.
-10 °C (14 °F) ambient temperature and
passenger compartment climate control
on.

The graph shows the approximate relationship
between constant speed and driving range.
Driving at a lower constant speed helps
increase the electric motor's driving range.

Higher ambient temperature and deactivated
climate system are also more favorable for
range.

Related information

•

Displaying trip statistics in the center dis-
play (p. 96)

•

Checking tire pressure (p. 571)

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462

Hold and Charge

In certain situations, it can be useful to con-
trol the hybrid battery's charge level while
driving. This is possible with the 

Hold

 and

Charge

 functions.

Hold

 and 

Charge

 are available in all drive

modes. The functions will switch off if 

Pure

drive mode is activated.

Activating Hold and Charge

The functions can be activated in the center
display's Function view.

Hold

Battery level sustained for
later use

.

This function retains the
charge in the hybrid battery
for the electric motor and
saves available electrical cur-

rent for use at a later time, such as when driv-
ing in an urban area.

The vehicle will function as in normal hybrid
driving with a discharged battery - in addition
to reusing energy from e.g. regenerative brak-
ing, the combustion engine will be used more
frequently to maintain the charge in the bat-
tery.

Charge

Engine charges hybrid
battery

.

This function charges the
hybrid battery with the help
of the combustion engine for
increased use of the electric

motor at a later time.

Symbols in the instrument panel

The 

 symbol is displayed in the hybrid battery

gauge when Hold is activated.

The 

 symbol is displayed in the hybrid battery

gauge when Charge is activated.

Related information

•

Range (p. 460)

•

Hybrid gauge (p. 91)

STARTING AND DRIVING

* Option/accessory.

463

Preparing for a long trip

It is important to have the vehicle's systems
and equipment checked carefully before driv-
ing long distances.

Check that

•

the engine is running properly and that
fuel consumption is normal

•

there are no leaks (fuel, oil or other fluid)

•

the brake pedal is functioning properly

•

all lights work

•

tire tread depth and air pressure are at
correct levels. Change to snow tires when
driving in areas where there is a risk of
snowy or icy roads

•

the start battery is sufficiently charged

•

the wiper blades are in good condition

Related information

•

Checking tire pressure (p. 571)

•

Filling washer fluid (p. 670)

•

Winter driving (p. 463)

•

Economical driving (p. 459)

•

Vehicle modem settings (p. 547)

•

Loading recommendations (p. 599)

•

Driving with a trailer (p. 478)

•

Pilot Assist

*

 (p. 306)

•

Tire sealing system (p. 585)

Winter driving

It is important to check the vehicle before
driving in cold/snowy conditions to make
sure it can be driven safely.

Before the cold season arrives:

•

Make sure the engine coolant contains
50% antifreeze. This mixture helps pro-
tect the engine from frost erosion down to
approx. –35 °C (–31 °F). Do not mix dif-
ferent types of antifreeze as this could
pose a health risk.

•

Keep the fuel tank well filled to prevent
condensation from forming.

•

Check the viscosity of the engine oil. Oil
with low viscosity (thinner oil) improves
cold-weather starting and reduces fuel
consumption when driving with a cold
engine.

•

Check the condition and charge level of
the start battery. Cold weather places
greater demands on the start battery and
reduces its capacity.

•

Use washer fluid containing antifreeze to
help prevent ice from forming in the
washer fluid reservoir.

See separate section for engine oil recommen-
dations.

Slippery driving conditions

To help optimize traction and roadholding,
Volvo recommends using snow tires on all
wheels whenever there is a risk of snow or ice
on the road.

NOTE

Certain countries require use of winter tires
by law. Not all countries permit the use of
studded tires.

Practice driving on slippery surfaces under
controlled conditions to learn how the vehicle
reacts.

Related information

•

Engine oil specifications (p. 682)

•

Snow tires (p. 584)

•

Snow chains (p. 584)

•

Braking on salted roads (p. 432)

•

Braking on wet roads (p. 432)

•

Filling washer fluid (p. 670)

•

Starter battery (p. 629)

•

Replacing windshield wiper blades
(p. 668)

•

Changing rear window wipers (p. 667)

•

Refilling coolant (p. 627)

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464

Driving through standing water

It may be necessary to drive the vehicle
through standing water e.g. deep puddles or
flooding on the road. This must be done with
great caution.

To help prevent damage to the vehicle when
driving through water:

•

Do not drive in water higher than the floor
of the vehicle. If possible, check the depth
of the water at its deepest point before
driving through it. Be particularly careful
when driving through flowing water.

•

Always select the 

Off Road

 drive mode

before driving in water to ensure the gaso-
line engine is running.

•

Do not drive faster than walking speed.

•

Do not stop the vehicle in the water. Drive
carefully forward or back the vehicle out of
the water.

•

Remember that waves created by passing
vehicles could cause the water level to rise
above the vehicle's floor level.

•

Avoid driving through salt water to help
avoid the risk of corrosion.

CAUTION

Parts of the vehicle (e.g. engine, transmis-
sion, driveline, electrical components, etc.)
can be damaged if the vehicle is driven
through water higher than its floor level.
Damage to any components caused by
flooding, vapor lock or insufficient oil is not
covered under warranty.

If the engine stalls while the vehicle is in
water, do not attempt to restart it. Have
the vehicle towed on the bed of a tow
truck to a workshop - an authorized Volvo
workshop is recommended.

CAUTION

Because it can be difficult to determine the
water depth, Volvo recommends not driv-
ing through standing or running water. The
driver is always responsible for operating
the vehicle in a safe manner and adhering
to all applicable laws and regulations.

When you have passed the water, press lightly
on the brake pedal and check that the brakes
are functioning properly. Water, mud, slush,
etc. can make the brake linings slippery,
resulting in delayed braking effect.

If the vehicle is equipped with a trailer cou-
pling contact, clean the contact after driving in
water or mud.

Related information

•

Recovery (p. 484)

•

Low Speed Control (p. 456)

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465

Opening/closing the fuel filler door

A button on the instrument panel is used to
unlock the fuel filler door.

An arrow next to the fuel
pump symbol in the instru-
ment panel indicates the side
of the vehicle on which the
fuel filler door is located.

1. Press the button on the dashboard.

> Pressure equalization in the fuel tank

causes a slight delay before the fuel
filler door opens. The message

Preparing for refuel

 

Fuel lid will be

unlocked when ready

 will appear in

the instrument panel. When the system
is ready, the message 

Fuel tank

 

Ready

for refueling

 will be shown. If the gas-

oline engine is activated when the but-
ton is pressed, it will usually be deacti-
vated and the vehicle will switch to
electric propulsion.

NOTE

Refueling must be done within approxi-
mately 15 minutes of opening the fuel filler
door. After this time, the valve opened by
pushing the button for opening the fuel
filler door will close and it will no longer be
possible to refuel without the pump's noz-
zle switching off.

If the valve is closed before refueling is
complete - press the button again and wait
until the driver display shows the message

Fuel tank

 

Ready for refueling

.

2. After refueling, press the fuel filler door

lightly to close it.

Related information

•

Refueling (p. 466)

STARTING AND DRIVING

466

Refueling

The fuel tank is equipped with a fuel filling
system without a cover.

Refueling the vehicle at a service
station

It is important to insert the pump's nozzle past both

of the two flaps in the fuel filler pipe before beginning

fueling.

Instructions for fueling:

1. Turn off the engine and open the fuel filler

door.

NOTE

Refueling must be done within approxi-
mately 15 minutes of opening the fuel filler
door. After this time, the valve opened by
pushing the button for opening the fuel
filler door will close and it will no longer be
possible to refuel without the pump's noz-
zle switching off.

If the valve is closed before refueling is
complete - press the button again and wait
until the driver display shows the message

Fuel tank

 

Ready for refueling

.

2. Select a fuel approved for use in the vehi-

cle. For more information on approved
fuels, see the section on “Fuel”.

3. Insert the pump's nozzle into the fuel filler

pipe's opening. There are two flaps just
inside the fuel filler pipe and the pump's
nozzle must push both of these flaps open
before fuel can be added.

4. Avoid overfilling the tank. Do not press the

handle on the filler nozzle again after it has
initially stopped pumping.
> The fuel tank is now filled.

NOTE

An over-full tank may overflow in hot
weather.

CAUTION

Avoid spilling gasoline during refueling. In
addition to causing damage to the environ-
ment, gasolines containing alcohol can
cause damage to painted surfaces, which
may not be covered under the New Vehicle
Limited Warranty.

Refueling from a fuel container

When filling from a fuel container, use the fun-
nel provided in a foam block under the floor
hatch in the cargo compartment.

1. Open the fuel filler door.

2. Insert the funnel into the fuel filler pipe's

opening. There are two flaps just inside
the fuel filler pipe and the tube section of
the funnel must push both of these flaps
open before fuel can be added.

STARTING AND DRIVING

}}

467

WARNING

California Proposition 65

Operating, servicing and maintaining a pas-

senger vehicle can expose you to chemi-

cals including engine exhaust, carbon mon-

oxide, phthalates, and lead, which are

known to the State of California to cause

cancer and birth defects or other reproduc-

tive harm. To minimize exposure, avoid

breathing exhaust, do not idle the engine

except as necessary, service your vehicle in

a well ventilated area and wear gloves or

wash your hands frequently when servicing

your vehicle. For more information go to

Related information

•

Opening/closing the fuel filler door
(p. 465)

•

Fuel (p. 467)

Fuel

Volvo recommends the use of detergent gas-
oline to control engine deposits.

Deposit control gasoline (gasoline
with detergent additives)

Detergent gasoline is effective in keeping
injectors and intake valves clean. Consistent
use of deposit control gasolines will help
ensure good driveability and fuel economy. If
you are not sure whether the gasoline contains
deposit control additives, check with the serv-
ice station operator.

NOTE

Volvo recommends not using external fuel
injector cleaning systems, e.g. do not add
detergent additives to gasoline before or
after refueling.

Unleaded fuel

All Volvo vehicles have a three-way catalytic
converter and must only use unleaded gaso-
line. US and Canadian regulations require that
pumps delivering unleaded gasoline are
labeled "UNLEADED". Only the nozzles of
these pumps will fit in your vehicle's fuel filler
inlet. It is unlawful to dispense leaded fuel into
a vehicle labeled "unleaded gasoline only".
Leaded gasoline damages the three-way cata-
lytic converter and the heated oxygen sensor

system. Repeated use of leaded gasoline will
lessen the effectiveness of the emission con-
trol system and could result in loss of emission
warranty coverage. State and local vehicle
inspection programs will make detection of
misfueling easier, possibly resulting in emis-
sion test failure for misfueled vehicles.

NOTE

Some U.S. and Canadian gasolines contain
an octane enhancing additive called
methyl-cyclopentadienyl manganese tricar-
bonyl (MMT). If such fuels are used, your
Emission Control System performance
may be affected, and the Check Engine
Light (malfunction indicator light) located
on your instrument panel may light. If this
occurs, please return your vehicle to a
trained and qualified Volvo service techni-
cian for service.

Gasoline containing alcohol and
ethers, "Oxygenated fuels"

Some fuel suppliers sell gasoline containing
"oxygenates" which are usually alcohols or
ethers. In some areas, state or local laws
require that the service pump be marked indi-
cating use of alcohols or ethers. However,
there are areas in which the pumps are
unmarked. If you are not sure whether there is
alcohol or ethers in the gasoline you buy,
check with the service station operator. To

||

STARTING AND DRIVING

468

meet seasonal air quality standards, some
areas require the use of "oxygenated" fuel.

Volvo permits the use of the following "oxy-
genated" fuels. However, the specified octane
ratings must still be met.

Alcohol - Ethanol

Fuels containing up to 10% ethanol by volume
may be used. Ethanol may also be referred to
as Ethyl alcohol, or "Gasohol".

Ethers - MTBE/ETBE: Fuels containing up to
22% MTBE/ETBE by volume may be used.

Methanol

Do not use gasolines containing methanol
(methyl alcohol, wood alcohol). This practice
can result in vehicle performance deterioration
and can damage critical parts in the fuel sys-
tem. Such damage may not be covered under
the New Vehicle Limited Warranty.

Related information

•

Octane rating (p. 468)

•

Opening/closing the fuel filler door
(p. 465)

•

Refueling (p. 466)

•

Emission controls (p. 470)

Octane rating

Volvo requires premium fuel (91 octane

14

 or

higher) for all T5, T6 and T8 engines, and rec-
ommends AKI 93 for optimal performance
and fuel economy. See decal examples in
illustrations 1 and 2.

Minimum octane

Decals

Illustration 1: Sample fuel pump octane label

14

.

Illustration 2: Decal on the inside of the fuel filler flap
on vehicles that require premium fuel

15

.

TOP TIER Detergent Gasoline

Volvo endorses the use of "TOP TIER Deter-
gent Gasoline" where available to help main-
tain engine performance and reliability. TOP
TIER Detergent Gasoline meets a new stand-
ard jointly established by leading automotive
manufactures to meet the needs of today's
advanced engines. Qualifying gasoline retail-
ers (stations) will, in most cases, identify their
gasoline as having met the "TOP TIER Deter-
gent Gasoline" standards.

NOTE

Information about TOP TIER Detergent
Gasoline is available at toptiergas.com

14

AKI (Anti Knock Index) is an average value of RON (Research Octane Number) and MON (Motor Octane Number) - (RON)+(MON)/2

15

For supplementary information - see the car's Service and Warranty Booklet.

STARTING AND DRIVING

469

NOTE

When switching to higher octane fuel or
changing gasoline brands, it may be neces-
sary to fill the tank more than once before a
difference in engine operation is noticea-
ble.

Fuel Formulations

Do not use gasoline that contains lead or man-
ganese as a knock inhibitor, and do not use
lead additives. Besides damaging the exhaust
emission control systems on your vehicle, lead
has been strongly linked to certain forms of
cancer.

Many fuels contain benzene as a solvent.
Unburned benzene has been strongly linked to
certain forms of cancer. If you live in an area
where you must fill your own gas tank, take
precautions. These may include:

•

standing upwind away from the filler noz-
zle while refueling

•

refueling only at gas stations with vapor
recovery systems that fully seal the mouth
of the filler neck during refueling

•

wearing neoprene gloves while handling a
fuel filler nozzle.

Use of Additives

With the exception of gas line antifreeze dur-
ing winter months, do not add solvents, thick-
eners, or other store-bought additives to your
vehicle's fuel, cooling, or lubricating systems.
Overuse may damage your engine, and some
of these additives contain organically volatile
chemicals. Do not needlessly expose yourself
to these chemicals.

WARNING

Never carry a cell phone that is 

switched

on

 while refueling your vehicle. If the

phone rings, this may cause a spark that

could ignite gasoline fumes, resulting in fire

and injury.

WARNING

Carbon monoxide is a poisonous, colorless,

and odorless gas. It is present in all exhaust

gases. If you ever smell exhaust fumes

inside the vehicle, make sure the passenger

compartment is ventilated, and immedi-

ately return the vehicle to a trained and

qualified Volvo service technician for cor-

rection.

Demanding driving

In demanding driving conditions, such as
when towing a trailer or driving in hot weather
or for prolonged periods at high altitudes, it

may be a good idea to switch to a higher-
octane fuel (AKI

14

 91 or higher) or to switch to

another brand of gasoline in order to fully uti-
lize the vehicle's engine capacity and optimize
traction.

Related information

•

Fuel (p. 467)

•

Emission controls (p. 470)

14

AKI (Anti Knock Index) is an average value of RON (Research Octane Number) and MON (Motor Octane Number) - (RON)+(MON)/2

STARTING AND DRIVING

470

Emission controls

Three-way catalytic converter

•

Keep your engine properly tuned. Certain
engine malfunctions, particularly involving
the electrical, fuel or distributor ignition
systems, may cause unusually high three-
way catalytic converter temperatures. Do
not continue to operate your vehicle if you
detect engine misfire, noticeable loss of
power or other unusual operating condi-
tions, such as engine overheating or back-
firing. A properly tuned engine will help
avoid malfunctions that could damage the
three-way catalytic converter.

•

Do not park your vehicle over combustible
materials, such as grass or leaves, which
can come into contact with the hot
exhaust system and cause such materials
to ignite under certain wind and weather
conditions.

•

Excessive starter cranking (in excess of
one minute), or an intermittently firing or
flooded engine can cause three-way cata-
lytic converter or exhaust system over-
heating.

•

Remember that tampering or unauthor-
ized modifications to the engine, the
Engine Control Module, or the vehicle may
be illegal and can cause three-way cata-
lytic converter or exhaust system over-
heating. This includes: altering fuel injec-

tion settings or components, altering
emission system components or location
or removing components, and/or repeated
use of leaded fuel.

NOTE

Unleaded fuel is required for vehicles with
three-way catalytic converters.

Heated oxygen sensors

The heated oxygen sensors monitor the oxy-
gen content of the exhaust gases. Readings
are fed into a control module that continuously
monitors engine functions and controls fuel
injection. The ratio of fuel to air into the engine
is continuously adjusted for efficient combus-
tion to help reduce harmful emissions.

Related information

•

Octane rating (p. 468)

•

Fuel (p. 467)

Overheating of engine and

transmission

In certain driving conditions, such as driving
in mountainous areas or hot weather, there is
a risk of the engine or transmission overheat-
ing, especially when carrying heavy loads.

•

Engine power may be temporarily limited.

•

Remove any auxiliary lights mounted in
front of the grille when driving in hot
weather.

•

If the temperature in the engine's cooling
system becomes too high, a warning sym-
bol will appear in the instrument panel
along with the message 

Engine

temperature

 

High temperature Stop

safely

. Pull over to a safe location and let

the engine idle for a few minutes to cool
down.

•

If the message 

Engine temperature

High temperature Turn off engine

 or

Engine coolant

 

Level low, turn off

engine

 is displayed, stop the vehicle and

turn off the engine.

•

If the transmission begins to overheat, an
alternative gear shifting program will be
selected. An integrated protective function
will also be activated, the warning symbol
will illuminate and the message

Transmission warm

 

Reduce speed to

lower temperature

 or 

Transmission hot

Stop safely, wait for cooling

 will be dis-

STARTING AND DRIVING

471

played in the instrument panel. Follow the
recommendations given by reducing
speed or stopping the vehicle safely and
letting the engine idle for a few minutes to
let the transmission cool.

•

If the vehicle begins to overheat, the air
conditioning may be temporarily switched
off.

•

After a prolonged period of driving in
demanding conditions, do not turn off the
engine immediately after stopping.

NOTE

It is normal for the engine's cooling fan to
operate for a short time after the engine is
switched off.

Symbols in the instrument panel

Symbol Meaning

High engine temperature. Follow
the recommendations provided.

Low coolant level. Follow the
recommendations provided.

Transmission hot/overheated/
cooling. Follow the recommen-
dations provided.

Related information

•

Refilling coolant (p. 627)

•

Driving with a trailer (p. 478)

•

Preparing for a long trip (p. 463)

Battery drain

The electrical functions in the vehicle drain
the battery to varying degrees. Avoid using
ignition mode 

II

 when the engine is switched

off. Use ignition mode 

I

 instead, as this uses

less electrical current.

Note that certain accessories may also drain
power from the electrical system. Do not use
functions that use a lot of electrical current
when the engine is turned off. Examples of
such functions are:

•

blower

•

headlights

•

windshield wipers

•

audio system (especially at high volume).

If the starter battery voltage is low, a message
is shown in the driver display. The vehicle's
energy-saving function will then turn off or
reduce certain functions, such as the blower
and/or the audio system.

–

To charge the battery, start the engine and
let it run for at least 15 minutes (driving
charges the battery faster than letting the
engine idle).

Related information

•

Starter battery (p. 629)

•

Ignition modes (p. 427)

STARTING AND DRIVING

472

Jump starting using another

battery

If the start battery is discharged, current from
another battery can be used to start the vehi-
cle.

Jumper cable connecting points.

CAUTION

The charging point of the vehicle is only
intended for jump starting the vehicle in
question. The charging point is not
intended for jump-starting another vehicle.
Using the charging point to start another
vehicle could cause a fuse to blow, which
would cause the charging point to stop
working.

If a fuse has blown, 

12 V Battery

 

Fuse failure

Service required

 will be displayed in the

instrument panel. Volvo recommends contact-
ing an authorized Volvo workshop.

To avoid short circuits or other damage, the
following steps are recommended when jump
starting the battery:

1. Put the ignition in mode 

0

.

2. Make sure the auxiliary battery (the bat-

tery used to jump start the discharged
battery) has a voltage of 12 volts.

3. If the auxiliary battery is in another vehicle,

turn off that vehicle's engine and make
sure that the vehicles are not touching
each other.

4. Clamp the red jumper cable onto the auxil-

iary battery's positive (+) terminal (1).

CAUTION

Connect the jump cable carefully to pre-
vent short circuits with other components
in the engine compartment.

5. Fold back the cover over your vehicle's

positive (+) jump start terminal (2).

6. Clamp the other end of the red jumper

cable to your vehicle's positive (+) jump
start terminal (2).

7. Clamp the black jumper cable onto the

auxiliary battery's negative (-) terminal (3).

8. Clamp the other end of the black jumper

cable to your vehicle's negative (-) ground
point (4).

9. Make sure the jumper cables are securely

attached to help prevent sparks while
jump starting.

10. Start the engine of the assisting vehicle

and let it run for a few minutes at a higher
idling speed than normal, about
1500 rpm.