2019 VOLVO XC90 TWIN ENGINE auxiliary battery

CLIMATE CONTROL
239
Heater
The heater helps the engine and passenger
compartment reach the correct temperature
before and while driving.
The heater has two sub-functions: Parking heater - heats the passenger com-
partment as needed when the parking cli-
mate's preconditioning is activated.
Auxiliary heater - heats the passenger com-
partment and engine while driving.
The heater is a high-voltage coolant heater and is
mounted in the front right-side wheel housing.
Battery and chargingThe heater is powered by the vehicle's hybrid bat-
tery. If the charge level in the hybrid battery is too
low, the heater will switch off automatically and a
message will be displayed in the instrument
panel.
NOTE Make sure that the battery has sufficient
charge if the heater must be used.
Related information

Climate (p. 204) Parking heater
The parking heater heats the passenger com-
partment as needed before driving if precondi-
tioning is activated.
The parking heater is one of two sub-functions of
the vehicle's heater. The heater is mounted in the
front right-side wheel housing.
The parking heater starts automatically if the
parking climate's preconditioning is activated and
the passenger compartment needs to be heated.
It switches off automatically when a set timer
time or the heater's maximum run time expires, or
if the car is restarted.
The heater's maximum running time is 40
minutes. Additional heater
The auxiliary heater helps heat the passenger
compartment and engine while driving.
The auxiliary heater is one of two sub-functions
of the vehicle's heater. The heater is mounted in
the front right-side wheel housing.
The auxiliary heater is started and controlled
automatically when extra heat is required while
the vehicle is being driven.
It switches off automatically when the ignition is
switched off.

STARTING AND DRIVING
445
Parking brake malfunction
If you are unable to deactivate or activate the
parking brake after several attempts, contact an
authorized Volvo workshop.
A audible warning signal will sound if the parking
brake is applied while the vehicle is being driven.
If the vehicle must be parked before the problem
is rectified, turn the wheels as when parking on
an incline and put the gear selector in P.
Low battery charge levelIf the battery charge level is too low, it will not be
possible to apply or release the parking brake.
Connect an auxiliary battery to the vehicle if the
battery is discharged.
Replacing brake padsDue to the design of the electric parking brake,
the rear brake pads must be replaced by a work-
shop. An authorized Volvo workshop is recom-
mended.
Symbols in the instrument panel Symbol
Meaning A
B
A flashing symbol indicates that a
fault has been detected. See the
message in the instrument panel. A
B
Fault in the brake system. See the
message in the instrument panel. Information message in the instru-
ment panel.
A
In Canada.
B In the US.Related information
Activating and deactivating the parking brake
(p. 443)
Start battery (p. 627)
Volvo's service program (p. 610)

STARTING AND DRIVING
}}
481
Jump starting using another battery
If the start battery is discharged, current from
another battery can be used to start the vehicle. Jumper cable connecting points.
CAUTION
The charging point of the vehicle is only
intended for jump starting the vehicle in ques-
tion. 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 instru-
ment panel. Volvo recommends contacting an
authorized Volvo workshop. To avoid short circuits or other damage, the fol-
lowing steps are recommended when jump star-
ting the battery:
1.
Put the ignition in mode 0.
2.
Make sure the auxiliary battery (the battery
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 auxiliary battery's positive (+) terminal (1).
CAUTION Connect the jump cable carefully to prevent
short circuits with other components in the
engine compartment.
5. Fold back the cover over your vehicle's posi-
tive (+) jump start terminal (2).
6.

Clamp the other end of the red jumper cable
to your vehicle's positive (+) jump start termi-
nal (2).
7. Clamp the black jumper cable onto the auxili- ary 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.
11. Start your vehicle's engine. If the engine does not start, allow an additional 10
minutes of charging time and then try to start
the engine again.
NOTE When the engine is started under normal
conditions, the vehicle's electrical drive motor
is prioritized – the gasoline engine remains
off. This means that the electric motor has
"started" and the vehicle is ready to be driven
once the start knob has been turned clock-
wise. Start of the electric motor is indicated
by the indicator lights on the instrument panel
going out and its preselected theme illuminat-
ing.
CAUTION
Do not touch the connections between the
cable and the vehicle during the start attempt.
Risk of sparking.

STARTING AND DRIVING
487
Disabling the automatic check
The automatic light check can be disabled in the
center display.
1.Tap Settings in the Top view.
2.

Tap My Car Lights and Lighting
.
3. Deselect Automatic Trailer Lamp Check.
Manual check
If the automatic check has been disabled, the
check can be started manually.
1.
Tap Settings in the Top view.
2.

Tap My Car Lights and Lighting
.
3. Select Manual Trailer Lamp Check.
>

The light check will begin. Get out of the
vehicle to perform the check.
Related information
Driving with a trailer (p. 483) Towing 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. The vehicle must be lifted onto a
tow truck and transported with all four wheels on
the bed or lifting platform of the truck (no wheels
may touch the road).
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. 488)
Hazard warning flashers (p. 161)
Recovery (p. 489)
Jump starting using another battery (p. 481)
Selecting ignition mode (p. 438)

INDEX
682G Gasoline grade
476
Gauge fuel gauge

87
Gear selector positions automatic transmission 449
Glass laminated/reinforced 166
Glove compartment 597
Gracenote® 521
Grocery bag holders 600
Gross vehicle weight 669
Guide lines for Park Assist Camera 399
H Handbrake
442, 443
Hand wash
651
Hard disk space 548
Hazard warning flashers 161
HDC 466
HD radio 505
Head restraint 195 Head-up display
142
activate and deactivate
143
cleaning 646
replacing windshield 621
settings 144
store position 144, 186, 187
Heated washer nozzles 176
Heater 239
auxiliary heater 239
parking heater 239
Heating Seats 217, 218
steering wheel 219, 220
windows 223, 225
Height adjustment 461, 464
high beams 156, 157
High engine temperature 479
Hill Descent Control 465, 466, 467
activate with function button 467
Hill Start Assist 447
Hill Start Assist (HSA) 447
Hoisting the vehicle 618
Hold vehicle function 471
HomeLink® 489
programming 490
use 491 HomeLink® remote control
programmable 489
Home safe lighting 161
Honk 200
Hood, opening 620
Horn 200
Hybrid battery 631
Charging 417
Hybrid battery gauge 88
Hybrid gauge 87
Hybrid mode 454, 460
I IAQS (Interior Air Quality System) 208
IC (Inflatable Curtain)

60
ID, Volvo 26
Identification number 38
Ignition mode 437, 438
Immobilizer 257
Electronic immobilizer 257
Indicator symbols 94
Individual drive mode 454
Infant seats 67
Inflatable curtain 60