engine overheat VOLVO XC90 TWIN ENGINE 2019 Owners Manual

10
STARTING AND DRIVING
Starting the vehicle434
Switching off the vehicle436
Ignition modes437
Selecting ignition mode438
Brake functions438
Brakes439
Brake Assist System441
Braking on wet roads441
Braking on salted roads441
Maintenance of the brake system442
Parking brake442
Activating and deactivating the park-ing brake443
Settings for automatically activatingthe parking brake444
Parking on a hill444
Parking brake malfunction445
Auto-hold brakes446
Activating and deactivating Auto-hold at a standstill446
Hill Start Assist447
Braking assist after a collision447
Transmission448
Gear selector positions for automatictransmissions449

Using the steering wheel paddles* toshift451
Shiftlock452
The kickdown function452
All Wheel Drive (AWD)452
Drive systems453
Starting and stopping the combus-tion engine in Twin Engine vehicles454
Drive modes454
Changing drive mode459
Energy distribution in hybrid modeusing map data*460
Leveling control* and suspension461
Leveling control settings*464
Low Speed Control464
Activating and deactivating LowSpeed Control using the function button465
Hill Descent Control466
Activating and deactivating HillDescent Control using the functionbutton
467
Economical driving467
Using the electric motor only469
Factors affecting electric motor range469
"Hold" and "Charge" functions471
Preparing for a long trip472

Winter driving472
Driving through standing water473
Opening/closing the fuel filler door474
Refueling475
Fuel476
Octane rating477
Emission controls479
Overheating of engine and transmission479
Battery drain480
Jump starting using another battery481
Detachable towbar*482
Driving with a trailer483
Trailer Stability Assist*485
Checking trailer lights486
Towing using a towline487
Attaching and removing the towing eyelet488
Recovery489
HomeLink®*489
Programming HomeLink®*490
Using HomeLink®*491
Type approval for HomeLink®*492
Compass*493
Activating and deactivating the compass*493
Calibrating the compass*493

||DRIVER SUPPORT
* Option/accessory.
312 This occurs if Adaptive Cruise Control is keeping
the vehicle stationary using the brakes and:
the driver opens the door or unbuckles
his/her seat belt
ACC has kept the vehicle at a standstill for
more than approx. 5 minutes
the brakes overheat
the driver switches off the engine manually.
Related information

Adaptive Cruise Control* (p. 300) Adaptive Cruise Control limitations
Adaptive Cruise Control (ACC 53
) may have lim-
ited functionality in certain situations.
Steep roads and/or heavy loadsAdaptive Cruise Control is primarily intended to
be driven on flat roads. The function may not be
able to maintain the correct time interval to the
vehicle ahead when driving down steep hills. The
driver should be extra attentive and prepared to
apply the brakes.
Do not use Adaptive Cruise Control if the
vehicle is carrying a heavy load or towing a
trailer.
Other limitations

The
Off Road drive mode cannot be
selected if Adaptive Cruise Control is acti-
vated.
NOTE The function uses the vehicle's combined
camera and radar unit, which has certain gen-
eral limitations; see sections "Camera limita-
tions" and "Radar sensor limitations".
Related information

Adaptive Cruise Control* (p. 300)
Camera limitations (p. 338)
Radar sensor limitations (p. 333) 53
Adaptive Cruise Control

||DRIVER SUPPORT
328
WARNING
When Pilot Assist follows another vehicle at
speeds over approx. 30 km/h (20 mph) and
changes target vehicle – from a moving vehi-
cle to a stationary one – Pilot Assist will
ignore the stationary vehicle and instead
accelerate to the stored speed.
The driver must then intervene and apply
the brakes.
Automatic standby mode when switching
targets
Pilot Assist disengages and goes into standby
mode if:
your vehicle's speed goes below 5 km/h
(3 mph) and Pilot Assist cannot determine if
the target object is a stationary vehicle or
another object, e.g. a speed bump.
your vehicle's speed goes under 5 km/h
(3 mph) and the vehicle ahead turns so that
Pilot Assist no longer has a vehicle to follow.
Related information
Pilot Assist (p. 316) Auto-hold braking with Pilot Assist
Pilot Assist has a special braking function in
slow traffic and at a standstill.
Braking function in slow traffic and at a
standstill
In slow-moving, stop-and-go traffic or when stop-
ped at a traffic light, driving will resume automati-
cally if the vehicle is stopped for less than
approx. 3 seconds. If it takes more than 3 sec-
onds for the vehicle ahead to begin moving again,
Pilot Assist will go into standby mode and the
Auto-hold brake function will activate.
– Pilot Assist can be reactivated by:
Pressing the button on the steering
wheel keypad.
Pressing the accelerator pedal.
>

Pilot Assist will resume following the vehi-
cle ahead if it begins to move within
approx. 6 seconds.
NOTE Pilot Assist can keep the vehicle stationary
for no more than 5 minutes – after that time
the parking brake is applied and the function
is deactivated.
The parking brake must be released before
Pilot Assist can be reactivated.
Deactivation of the Auto-hold brake function
In certain situations, Auto-hold will be deactivated
when the vehicle is at a standstill and Pilot Assist
will go into standby mode. This means that the
brakes will be released and the vehicle could
begin to roll. The driver must actively apply the
brakes to keep the vehicle stationary.
This can occur if:
the driver depresses the brake pedal
the parking brake is applied
the gear selector is moved to the P, N or R
positions
the driver puts Pilot Assist in standby mode.
Auto Activate Parking BrakeIn certain situations, the parking brake will be
applied to keep the vehicle at a standstill.
This occurs if Pilot Assist is keeping the vehicle
stationary using the brakes and:
the driver opens the door or unbuckles
his/her seat belt
Pilot Assist has kept the vehicle at a stand-
still for more than approx. 5 minutes
the brakes overheat
the driver switches off the engine manually.
Related information
Pilot Assist (p. 316)

HYBRID INFORMATION
}}
417

Gear selector positions for automatic trans-
missions (p. 449)
Towing using a towline (p. 487) Charging the hybrid battery
In addition to the conventional fuel tank, your
vehicle is also equipped with a rechargeable
lithium-ion hybrid battery.
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.
The hybrid battery can be recharged using the
charging cable stored in a storage space in the
cargo compartment.
WARNING The hybrid electrical system in your vehicle
uses high voltage electrical current. Any dam-
age to this system or to the hybrid battery
may result in the danger of overheating, fire,
or serious injury. If the vehicle is involved in a
collision or subjected to flooding, fire, etc.,
have it inspected by a trained and qualified
Volvo service technician. Prior to this inspec-
tion, the vehicle should be parked outdoors at
a safe distance from any building or poten-
tially flammable materials.
The hybrid battery's charging time depends on
the charging current used.
NOTE The capacity of the hybrid battery diminishes
somewhat with age and use, which could
result in increased use of the gasoline engine
and consequently, slightly higher fuel con-
sumption.
WARNING
If the hybrid battery needs to be replaced, this
may only be done by a Volvo retailer or
authorized Volvo workshop.

HYBRID INFORMATION
430Twin Engine symbols and messages
in the instrument panel
A number of symbols and messages relating to
the Twin Engine may be displayed in the instru-
ment panel. They may also appear in combina-
tion with general indicator and warning symbols
and disappear when the necessary action has
been taken.Symbol
Message Meaning12 V Battery
Charging fault, service urgent. Drive
to workshop
Battery fault. Contact a workshop
A
to have the battery checked as soon as possible. 12 V Battery
Charging fault Stop safely
Battery fault. Stop the vehicle as soon as possible and contact a worksh\
op
A
to have the battery
checked. 12 V Battery
Fuse failure Service required
Battery fault. Contact a workshop
A
to have the system checked as soon as possible. Hybrid battery
Overheated, stop safely
The hybrid battery's temperature seems to be rising at an abnormal ra\
te. Stop the vehicle and turn
off the engine. Wait at least 5 minutes before driving. Call a workshop
A
or inspect the vehicle to
make sure everything seems normal before continuing to drive. Reduced performance
Max vehicle speed limited
The hybrid battery's charge level is too low for driving at high spee\
ds. Charge the battery as soon as
possible.Hybrid system
Harsh behavior at low speed, vehicle
ok to use
The hybrid system is not functioning properly. Contact a workshop
A
to have the system checked as
soon as possible.

STARTING AND DRIVING
* Option/accessory.
434 Starting the vehicle
The vehicle can be started using the start knob
in the tunnel console when the remote key is in
the passenger compartment. Start knob in the tunnel console.
WARNING
Before starting:
Buckle your seat belt.
Adjust the seat, steering wheel and mir-
rors.
Make sure you can fully depress the
brake pedal. The remote key is not physically used to start the
ignition because the vehicle is equipped with the
keyless Passive Start system.
To start the vehicle:
1.

The remote key must be inside the vehicle.
For vehicles with Passive Start, the key must
be in the front section of the passenger
compartment. With the optional keyless lock-
ing/unlocking function*, the key can be any-
where in the vehicle.
2. Press and hold down the brake pedal 1
as far
as possible.
3. Turn the start knob clockwise and release. The control will automatically return to the
original position.
WARNING
Never use more than one inlay mat at a
time on the driver's floor. If any other type
of floor mat is used, remove the original
mat from the driver's seat floor before
driving. All types of mats must be securely
anchored in the attachment points in the
floor. Make sure the floor mat does not
impede the movement of the brake pedal
or accelerator pedal in any way, as this
could be a serious safety hazard.
Volvo's floor mats are specially manufac-
tured for your vehicle. They must be prop-
erly secured in the attachment points in
the floor to help ensure they cannot slide
and become trapped under the pedals.
The starter motor will crank until the engine
starts or until overheating protection is triggered.
During normal start conditions, the vehicle's elec-
tric motor will be prioritized and the gasoline
engine will remain off. This means that once the
start knob is turned clockwise, the electric motor
has been "started" and the vehicle is ready to be
driven. The warning and information symbols in
the instrument panel will go out and the selected
theme will be displayed to indicate that the elec-
tric motor is activated. 1
If the vehicle is moving, it is only necessary to turn the start knob cl\
ockwise to start the engine.

||STARTING AND DRIVING
436
CAUTION

When starting in cold weather, the auto-
matic transmission may shift up at slightly
higher engine speeds than normal until
the automatic transmission fluid reaches
normal operating temperature.
Do not race a cold engine immediately
after starting. This could prevent fluids
from properly lubricating vital compo-
nents in the engine before it has reached
the proper operating temperature.
The engine should be idling when the
gear selector is moved. Never accelerate
until the gear is fully engaged. Accelerat-
ing rapidly before a gear is properly
engaged could lead to harder wear of
components.
To help prevent the transmission oil from
overheating, select P or N when idling at
a standstill for prolonged periods of time.
Related information
Switching off the vehicle (p. 436)
Ignition modes (p. 437)
Adjusting the steering wheel (p. 201)
Jump starting using another battery (p. 481)
Selecting ignition mode (p. 438) Switching off the vehicle
The vehicle can be switched off using the start
knob in the tunnel console.
Start knob in the tunnel console.
To switch off the vehicle:
– Turn the start knob clockwise and release to
switch off the vehicle. The control will auto-
matically return to the original position.
If the vehicle rolls:
– Turn clockwise and hold the knob until the
vehicle switches off.
Related information
Starting the vehicle (p. 434)
Ignition modes (p. 437)
Adjusting the steering wheel (p. 201)
Jump starting using another battery (p. 481)
Selecting ignition mode (p. 438)

||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
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
}}
479
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 conditions, such as engine
overheating or backfiring. A properly tuned
engine will help avoid malfunctions that
could damage the three-way catalytic con-
verter.
Do not park your vehicle over combustible
materials, such as grass or leaves, which can
come into contact with the hot exhaust sys-
tem 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 catalytic con-
verter or exhaust system overheating.
Remember that tampering or unauthorized
modifications to the engine, the Engine Con-
trol Module, or the vehicle may be illegal and
can cause three-way catalytic converter or
exhaust system overheating. This includes:
altering fuel injection settings or compo-
nents, 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 sensorsThe heated oxygen sensors monitor the oxygen
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 combustion to help reduce
harmful emissions.
Related information

Octane rating (p. 477)
Fuel (p. 476) Overheating of engine and
transmission
In demanding driving conditions, such as driving
in mountainous areas or hot weather, there is a
risk of the engine or transmission overheating,
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 symbol
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 dis- played, 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 displayed in the instrument panel. Follow the recommen-
dations given by reducing speed or stopping