2018 VOLVO XC90 TWIN ENGINE battery

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.

LOADING, STORAGE AND PASSENGER COMPARTMENT
583Status indicator light
Cause Action
Steady green light

The socket is providing electrical current to a connected device. None.
Flashing orange light The socket's voltage converter is too hot (e.g. if the device draws \
too much cur- rent or if the temperature in the passenger compartment is very high). Unplug the device, let the voltage converter cool
down and plug in the device again.
The connected device is drawing too much current (at the moment or con-\
stantly) or is not functioning properly. None. The device cannot be used in the socket.
Indicator light off The socket has not detected a device plugged into the socket. Make sure the device is correctly plugged into the
socket.
The socket is not active. Make sure the vehicle's ignition is in at least
mode I.
The socket has been active but has been deactivated. Start the engine and/or charge the start battery.
Related information
•Passenger compartment interior (p. 580)
• Using the electrical outlets (p. 584)

LOADING, STORAGE AND PASSENGER COMPARTMENT
* Option/accessory.
584 Using the electrical outlets
The 12 V outlet can be used for devices
intended for this such as MP3 players, coolers
and cellular phones.
The high-voltage outlet* can be used for devices
intended for this, such as chargers, laptops, etc. The ignition must be in at least mode I for the
outlets to supply current. The outlets will then be
active as long as there is sufficient charge in the
start battery.
If the engine is turned off and the vehicle is
locked, the outlets will be deactivated. If the
engine is turned off and the vehicle remains
unlocked, the sockets will remain active for up to
7 minutes.
NOTE Bear in mind that using the electrical outlets
when the engine is off could cause the starter
battery to have too low of a charge level,
which could limit other functionality.
Accessories connected to the electrical out-
lets can be activated even when the vehicle
electrical system is off or if preconditioning is
used. For this reason, disconnect plugs when
they are not in use to prevent the starter bat-
tery from becoming discharged.
WARNING •
Do not use accessories with large or
heavy plugs – they could damage the out-
let or come loose while you are driving.
• Do not use accessories that could cause
disruptions to e.g. the vehicle's radio
receiver or electrical system.
• Position the accessory so that there is no
risk of it injuring the driver or passengers
in the event of heavy braking or a colli-
sion.
• Pay attention to connected accessories
as they can generate heat that could burn
passengers or the interior.
Using 12 V outlets1. Remove the stopper (tunnel console) or fold
down the cover (trunk/cargo compartment)
over the socket and plug in the device.
2. Unplug the device and put the stopper back in (tunnel console) or fold up the cover
(trunk/cargo compartment) when the socket
is not in use or left unattended.
CAUTION The maximum power is 120 W (10 A) per
outlet.
Using high-voltage outletsThe ignition must be in at least mode I for outlets
to supply current. The outlets will then be active
as long as there is sufficient charge in the start
battery.
1. Slide down the cover over the outlet and plug
in the device.
>
The LED 2
light on the outlet will indicate
its status.
2. The outlet is supplying electrical current when the light is glowing steadily green.
3. Disconnect the device by pulling out the plug (do not pull on the cord).
Pull up the cover when the outlet is not in
use or is left unattended.
CAUTION The maximum power is 150 W.
WARNING
Do not attempt to alter or repair the high-volt-
age outlet on your own. Volvo recommends
contacting an authorized Volvo workshop.
2
LED (Light Emitting Diode)

MAINTENANCE AND SERVICE
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599
Periodic maintenance helps minimize
emissions
NOTE •
Refer to your Service and Warranty Book-
let for a comprehensive service and main-
tenance schedule up to 240,000 km
(150,000 miles). This program contains
inspections and services necessary for
the proper function of your vehicle and
includes components that affect vehicle
emissions.
• The Warranty and Service Records Infor-
mation booklet also contains detailed
information concerning the warranties
that apply to your vehicle.
On-board Diagnostic SystemOBD II is part of your vehicle's computerized
engine management system. It stores diagnostic
information about your vehicle's emission con-
trols. It can light the Check Engine light (MIL) if it
detects an emission control "fault." A "fault" is a
component or system that is not performing
within an expected range. A fault may be perma-
nent or temporary. OBD II will store a message
about any fault.
Emission inspection readiness
How do states use OBD II for emission
inspections?
Many states connect a computer directly to a
vehicle's OBD II system. The inspector can then
read "faults." In some states, this type of inspec-
tion has replaced the tailpipe emission test.
How can my vehicle fail OBD II emission
inspection?
Your vehicle can fail OBD II emission inspection
for any of the following reasons:
• If your Check Engine (MIL) light is lit, your
vehicle may fail inspection.
• If your vehicle's Check Engine light was lit,
but went out without any action on your part,
OBD II will still have a recorded fault. Your
vehicle may pass or fail, depending on the
inspection practices in your area.
• If you had recent service that required dis-
connecting the battery, OBD II diagnostic
information may be incomplete and "not
ready" for inspection. A vehicle that is not
ready may fail inspection.
How can I prepare for my next
OBD II
emission inspection?
• If your Check Engine (MIL) light is lit - or was
lit but went out without service, have your vehicle diagnosed and, if necessary, serviced
by a qualified Volvo technician.
• If you recently had service for a lit Check
Engine light, or if you had service that
required disconnecting the battery, a period
of driving is necessary to bring the OBD II
system to "ready" for inspection. Two half-
hour trips of mixed stop-and-go/highway
driving are typically needed to allow OBD II to
reach readiness. Your Volvo retailer can pro-
vide you with more information on planning a
trip.
• Maintain your vehicle in accordance with your
vehicle's maintenance schedule.
Owner maintenancePeriodic maintenance requirements and intervals
are described in your vehicle's Warranty and
Service Records Information booklet.
The following points can be carried out between
the normally scheduled maintenance services.
Each time the car is refueled:
•Check the engine oil level.
• Clean the windshield, windshield wipers,
headlights, and taillights.

||MAINTENANCE AND SERVICE
600
Monthly:
•
Check cold tire pressure in all tires. Inspect
the tires for wear.
• Check that engine coolant and other fluid
levels are between the indicated "min" and
"max" markings.
• Clean interior glass surfaces with a glass
cleaner and soft paper towels.
• Wipe driver information displays with a soft
cloth.
• Visually inspect battery terminals for corro-
sion. Corrosion may indicate a loose terminal
connector, or a battery near the end of its
useful service life. Consult your Volvo retailer
for additional information.
As needed:
Wash the car, including the undercarriage, to
reduce wear that can be caused by a buildup of
dirt, and corrosion that can be caused by salt res-
idues.
Clean leaves and twigs from air intake vents at
the base of the windshield, and from other places
where they may collect.
NOTE Complete service information for qualified
technicians is available online for purchase or
subscription at www.volvotechinfo.com.
Related information
•
Vehicle status (p. 602)
• Scheduling service and repairs (p. 603)
• Connecting equipment to the vehicle's data
link connector (p. 36)
• Technician certification (p. 37)
• Climate control system service (p. 608)
• Maintenance of the brake system (p. 432)
• Engine compartment overview (p. 609) Data transfer between vehicle and
workshop over Wi-Fi
Volvo workshops have a designated Wi-Fi net-
work for secure data transfer between your vehi-
cle and the workshop. Your visit to the workshop
will be easier and more effective when diagnos-
tics information and software can be transferred
over the workshop's network.
When you arrive at the workshop, your technician
can connect your vehicle to the workshop's Wi-Fi
network to perform troubleshooting and down-
load software. For this type of communication,
the vehicle only connects to the workshop's net-
work. The vehicle can only be connected to the
designated workshop networks, not to any other
network, e.g. your home network.
Manual connection to workshop Wi-FiManual connection is usually performed by a
service technician. Because the technician uses
the buttons on your remote key to connect the
vehicle, it is important that you bring a key with
buttons when taking the vehicle in to a workshop.
Pressing the lock button on the remote key three
times will connect the vehicle to the workshop's
Wi-Fi network.
When the car is connected to a Wi-Fi network,
the symbol appears in the center display.

MAINTENANCE AND SERVICE
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615
Start battery
The vehicle has a single-pole electrical system
that uses the chassis and engine mount as con-
ductors.
The start battery is used to start the electrical
system and power electrical equipment in the
vehicle. The hybrid battery is used to start the
combustion engine.
The start battery should only be replaced by a
workshop 15
.
The start battery is a 12 V AGM (Absorbed Glass
Mat) battery, dimensioned for regenerative charg-
ing and to support the function of the vehicle's
various systems.
The service life and performance of the start bat-
tery are affected by factors such as driving style,
driving conditions, climate, battery discharges,
number of starts, etc.
• Never disconnect the start battery while the
engine is running.
• Make sure the cables to the start battery are
correctly connected and the clamps are
securely tightened.
WARNING •
Batteries generate hydrogen gas, which
is flammable and explosive.
• Do not connect the jumper cable to any
part of the fuel system or to any moving
parts. Avoid touching hot manifolds.
• Battery fluid contains sulfuric acid. Do not
allow battery fluid to contact eyes, skin,
fabrics or painted surfaces.
• If contact occurs, flush the affected area
immediately with water. Obtain medical
help immediately if eyes are affected.
• Never expose the battery to open flame
or electric spark. Do not smoke near the
battery. Failure to follow the instructions
for jump starting can lead to injury.
Connection points
WARNING PROPOSITION 65 WARNING
Battery posts, terminals, and related accesso-
ries contain lead and lead compounds, chemi-
cals known to the state of California to cause
cancer and reproductive harm. Wash hands
after handling.Use the vehicle's connection points in the engine
compartment to connect an external start battery
or battery charger.
The battery terminals on the car's starter battery
in the luggage/cargo area must not be used.
Positive connection point
Negative connection point
CAUTION
It is not possible to charge another vehicle's
battery by means of current through the
charging points. Using the charging points to
charge another vehicle's battery could cause
a fuse to blow, which would cause the charg-
ing points to stop working.
15
An authorized Volvo workshop is recommended.

||MAINTENANCE AND SERVICE
616
CAUTION
Only a modern battery charger with controlled
charge voltage should be used to charge the
starter battery. The rapid charging function
should not be used as this could damage the
battery.
NOTE
If both the starter battery and the hybrid bat-
tery are discharged, both batteries must be
charged. In such cases, it is not possible to
charge only the hybrid battery first.
The starter battery must have a certain level
of charge for it to be possible to charge the
hybrid battery.
CAUTION Failure to observe the following could cause
the infotainment energy save mode to tempo-
rarily stop working and/or a message in the
driver's display regarding the state of charge
of the starter battery may be temporarily
incorrect after an external starter battery or
battery charger has been connected:
• The negative battery terminal of the vehi-
cle's starter battery must never be used
to connect an external starter battery or
battery charger – only the vehicle's neg-
ative charging point should be used as
a grounding point.NOTE If the starter battery becomes discharged too
many times, it will shorten its service life.
The service life of the starter battery is affec-
ted by several factors, such as driving condi-
tions and climate. The starting capacity of the
battery reduces gradually over time. The bat-
tery must therefore be recharged if the vehi-
cle is not used or a long period of time or if it
is only driven short distances. Severe cold fur-
ther limits the starting capacity.
To keep the starter battery in a good condi-
tion, the vehicle should be driven at least
15 minutes per week or the battery should be
connected to a battery charger with automatic
trickle charging.
A starter battery that is always kept fully
charged has the maximum service life.

MAINTENANCE AND SERVICE
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617
Location The start battery is located in the cargo compartment.WARNING If the starter battery is disconnected, the func-
tion for automatic opening and closing must
be reset to function correctly. A reset is
required in order for the pinch protection to
work.
CAUTION
On certain models, the battery is secured with
a tensioning strap. Make sure that the ten-
sioning strap is always securely tightened.
Specifications
Battery
H8 AGM
Voltage (V) 12
Cold start capacity A
- CCA B
(A) 850
Dimensions, L×W×H 353×175×190 mm (13.9×6.9×7.5 inches)
Capacity (Ah) 95A
According to EN standard.
B Cold Cranking Amperes.
Volvo recommends that batteries are replaced by
an authorized Volvo workshop. 16
Absorbed Glass Mat.