VOLVO XC90 T8 2018 Owner´s Manual

MAINTENANCE AND SERVICE
619
Hybrid battery
The vehicle's electric motor is powered by a rechargeable, maintenance-free, lithium-ionhybrid battery.
NOTE
The vehicle cannot be started if the hybrid battery is discharged.
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 thehybrid battery.
WARNING
Hybrid battery replacement may only be per- formed by a workshop – an authorized Volvoworkshop is recommended.
CoolantThe hybrid battery's cooling system has its own expansion tank.
CAUTION
Filling the hybrid battery coolant should only be performed by a workshop – an authorizedVolvo workshop is recommended.
SpecificationsType: Lithium-ion
Power reserve: 10.4 kWh.
NOTE
The capacity of the hybrid battery decreases with age and use, which could result inincreased use of the combustion engine,leading to higher fuel consumption andreduced electric motor range.
Related information
•Battery symbols (p. 620)
• Start battery (p. 615)
• Charging the hybrid battery (p. 407)

MAINTENANCE AND SERVICE
620
Battery symbols
There are warning symbols and information on the batteries.
Wear protective goggles.
See the Owner's Manual for additional information.
Keep batteries away from children.
Batteries contain corrosive acid.
Avoid smoking, open
flames, and/or sparks.
Risk of explosion.
Recycle properly.
NOTE
A used start battery contains lead and must be recycled in an environmentally responsiblemanner.
Related information
• Start battery (p. 615)
• Hybrid battery (p. 619)
Fuses and fuseboxes
All electrical functions and components are pro- tected by a number of fuses in order to protectthe vehicle's electrical system from damage byshort circuiting or overloading.
WARNING
Never use a foreign object or a fuse with a higher amperage than that specified toreplace a fuse. This could cause significantdamage to the electrical system and possiblylead to a fire.
WARNING
Orange wiring may only be handled by quali- fied personnel.
WARNING
Several components in the vehicle work with high voltage that can be hazardous in case ofan incorrect procedure. Do not touch anything that is not clearly described in this Owner's Manual.
If any electrical component or function is not responding, the component may have blown afuse due to temporary overload. If the same fuse blows repeatedly, there may be a problem with the component. Volvo recommends contacting anauthorized Volvo workshop to have the compo-nent checked.

MAINTENANCE AND SERVICE
621
Location of fuseboxes
The illustration is generic - appearance may vary accord- ing to vehicle model.
Engine compartment
Under the glove compartment
Trunk/cargo compartment
Related information
•Replacing fuses (p. 621)
• Fuses in the cargo compartment (p. 629)
• Fuses in the engine compartment (p. 622)
• Fuses under the glove compartment (p. 626)
Replacing fuses All electrical functions and components are pro- tected by a number of fuses in order to protectthe vehicle's electrical system from damage byshort circuiting or overloading.
1. Refer to the fuse diagram to locate the fuse.
2. Pull out the fuse and examine it from the
side to determine if the curved metal wire in the fuse is intact.
3. If the wire is broken, replace the fuse with a new fuse of the same color and amperage.
WARNING
Never use a foreign object or a fuse with a higher amperage than that specified toreplace a fuse. This could cause significantdamage to the electrical system and possiblylead to a fire.
WARNING
Contact an authorized Volvo workshop for assistance replacing fuses not listed in theOwner's Manual. If performed incorrectly, sig-nificant damage can be caused to the electri-cal system.
Related information
• Fuses and fuseboxes (p. 620)
• Fuses in the cargo compartment (p. 629) •
Fuses in the engine compartment (p. 622)
• Fuses under the glove compartment (p. 626)

MAINTENANCE AND SERVICE
622
Fuses in the engine compartment
The fuses in the engine compartment help pro- tect electrical components such as engine andbrake functions.

MAINTENANCE AND SERVICE
}}
623
Fuse pliers are provided on the inside of the fuse box cover to assist in removing and insertingfuses. There are also spaces for several extra fuses in the fusebox.
PositionsThere is a decal with a diagram of the locationsof the fuses on the inside of the cover.
• Fuses 1–13, 18–30, 35–37 and 46–70 are"Micro" fuses.
• Fuses 14–17, 31–34, 38–45 and 71–78 are"MCase" fuses and should only be replaced by a workshop 17
.
FunctionAA
– –
– –
– –
Control module for actuator for engaging/changing gears, auto-matic transmission 5
High-voltage coolant heater control module
5
FunctionAA
Control module for A/C; heat exchanger cut-off valve; cut-offvalve for coolant through the cli-mate system5
Hybrid battery control module; high-voltage converter for com-bined high-voltage generator/starter motor with 500 V–12 Vvoltage converter5
– –
Converter for controlling feed to rear axle electric motor
10
Hybrid battery control module; high-voltage converter for com-bined high-voltage generator/starter motor with 500 V–12 Vvoltage converter10
Charge module 5
Cut-off valve for hybrid battery coolant; coolant pump 1 forhybrid battery
10
Coolant pump for electric drive system
10
FunctionAA
Hybrid component cooling fan 25
– –
– –
– –
– –
– –
– –
– –
– –
– –
12 V outlet in tunnel console, front15
12 V outlet in tunnel console between second-row seats
B
12 V outlet in tunnel console,between rear seats C
; USB ports
in tunnel console between rearseats C 15
17
An authorized Volvo workshop is recommended.

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MAINTENANCE AND SERVICE
* Option/accessory.
624
FunctionAA
12 V outlet in trunk/cargo com- partment *
USB ports for iPad holders C15
– –
– –
– –
– –
Heated windshield
*, left side Shunt
Heated windshield
*, left side 40
Headlight washers
*25
Windshield washer 25
– –
Horn 20
Alarm siren
* 5
Brake system control module (valves, parking brake) 40
Wipers 30
Rear window washer 25
FunctionAA
Heated windshield
*, right side 40
Parking heater
* 20
Brake system control module (ABS pump) 40
– –
Heated windshield
*, right side Shunt
Fed when ignition is on: Engine control module; transmissioncomponents, electrical powersteering, central electrical mod-ule 5
Exterior vehicle sound (certain markets)
5
Right-side headlight 7.5 Right-side headlight, some mod- els with LED
D 15
– –
– –
– –
Airbags 5
FunctionAA
Left-side headlight 7.5 Left-side headlight, some mod- els with LED
D 15
Accelerator pedal sensor 5
Transmission control module; gear selector control module 15
Engine control module 5
– –
– –
– –
– –
Engine control module; actuator; throttle unit; turbo-charger valve20
Solenoids; valve; engine cooling system thermostat10
Vacuum regulators; valve 7.5
Spoiler shutter control module; radiator shutter control module 5
– –

MAINTENANCE AND SERVICE
625
FunctionAA
Heated oxygen sensor, front; heated oxygen sensor, rear15
Oil pump solenoid; A/C mag- netic coupling; heated oxygensensor (center)15
– –
Engine control module 20
Ignition coils; spark plugs 15
– –
– –
Transmission oil pump control module
30
Vacuum pump control module 40
Transmission actuator 25
– –
– –
– –
A
Ampere
B Not Excellence
C Excellence
D LED (Light Emitting Diode)
Related information
• Fuses and fuseboxes (p. 620)
• Replacing fuses (p. 621)

MAINTENANCE AND SERVICE
626
Fuses under the glove compartment
Fuses under the glove compartment provide pro- tection for e.g. electrical outlets, displays anddoor modules.

MAINTENANCE AND SERVICE
}}
* Option/accessory.627
Fuse pliers are provided on the inside of the fuse box cover to assist in removing and insertingfuses. There are also spaces for several extra fuses in the
distribution box in the engine compart-
ment .
Positions
•Fuses 1, 3-21, 23-36, 39-53 and 55-59 are "Micro" fuses.
• Fuses 2-22, 37-38 and 54 are "MCase"fuses and should only be replaced by a work- shop 18
.
FunctionAA
– –
– –
– –
Movement sensor * 5
Media player 5
Instrument panel 5
Center console buttons 5
Sun sensor 5
FunctionAA
– –
– –
Steering wheel module 5
Module for start knob and parking brake controls 5
Heated steering wheel
* module 15
– –
– –
– –
– –
Climate system control module 10
– –
Data link connector OBD-II 10
Center display 5
Climate system blower module (front) 40
USB HUB 5
FunctionAA
Instrument lighting; Interior lighting; Rearview mirror auto-dim function
*;
Rain and light sensors *; Rear tun-
nel console keypad, second row of seats *B
; Power front seats *; Rear
door control panels; Climate sys- tem blower module left/right Power rear seats C
; Display for rear
seat convenience functions C
; Rear
seat massage function C7.5
Control module for driver support functions
5
Panoramic roof with sun curtain
*20
Head-up display
* 5
Passenger compartment lighting 5
– –
Ceiling console display (seat belt reminder/front passenger side air-bag indicator) 5
– –
Humidity sensor 5
18
An authorized Volvo workshop is recommended.

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MAINTENANCE AND SERVICE
* Option/accessory.
628
FunctionAA
Door module in right-side rear door 20
Fuses in the trunk/cargo compart- ment 10
Control module for Internet-con- nected vehicle; Control module forVolvo On Call 5
Door module in left-side rear door 20
Audio control module (amplifier) (certain models only)
40
Climate system blower module (rear)
* 40
Multi-band antenna module 5
Front seat massage function
*5
– –
Rear window wiper 15
Fuel pump control module 15
Relay windings for distribution box in engine compartment; Relaywindings for transmission oil pump 5
– –
FunctionAA
Driver's seat heating 15
Front passenger's seat heating 15
Coolant pump 10
– –
Door module in left-side front door 20
Active chassis control module
*20
– –
Sensus control module 10
– –
– –
Door module in right-side front door 20
Display for rear seat convenience functions
C
; On-board diagnostics
(OBD II) in tunnel console betweenrear seats C
; Extra movement sen-
sor C 5
C
FunctionAA
TV
* (certain markets only) 5
Primary fuse for fuses 53 and 58 15
A
Ampere
B Not Excellence
C Excellence
Related information
• Fuses and fuseboxes (p. 620)
• Replacing fuses (p. 621)