2012 VOLVO XC90 key battery

09 Maintenance and servicing
Battery 09
222
4. Disconnect the negative (ground) cable
first.
G027075
5. Disconnect the positive cable and pull the
ventilation hose from the battery.
6. Lift out the old battery and put a new bat-
tery into place.
7. Connect the positive cable first.
8. Connect the negative (ground) cable.
9. Be sure that the ventilation hose is securely
connected to the battery and that the other
end of the hose is properly routed through
the ventilation opening in the floor of the
battery compartment.
G030884
Ventilation hose
10. Reinstall the cover and retaining bracket
and screw it securely in place.
NOTE
After the battery has been disconnected or
replaced, lock and unlock the vehicle with
the central locking system's remote key to
reactivate such features as the power win-
dows, moonroof, courtesy lighting, etc.
WARNING
•The battery generates hydrogen gas,
which is flammable and explosive. The
battery is fitted with a ventilation hose
which vents hydrogen gas out of the
battery compartment through a ventila-
tion opening in the bottom of this com-
partment. If the battery must be
replaced, it is essential that the ventila-
tion hose is properly connected to the
battery and that it is routed through the
ventilation opening provided (see illus-
tration).
•Be sure the ventilation hose is free of
debris.
•Only use replacement batteries equip-
ped with a ventilation hose. Consult a
trained and qualified Volvo service tech-
nician.

10 Audio
Rear Seat Entertainment – Dual Screen (RSE)*
10

* Option/accessory, for more information, see Introduction.273 Introduction
The RSE system can be used at the same time
as the vehicle’s audio system.
When the rear seat passengers play a DVD,
connect an external device to the RSE AUX
connectors, etc., and listen to the audio
through the cordless headphones, the driver
and front seat passenger can still use the vehi-
cle's audio system to listen to the radio, a CD,
music stored on an MP3 player, etc.
Please also refer to the Quick Guide provided
with the RSE system for additional information.
Electrical current - ignition keyThe RSE system can be activated with the igni-
tion in position I or II (see page 141 for infor-
mation on the ignition positions), or when the
engine is running. While the engine is being
started, a film or music that is currently being
played will pause momentarily and resume
playing when the engine has started.
When the RSE system has been used once
when the ignition is switched off, it will be then
be blocked for further use. RSE can be restar-
ted by turning the ignition key to position I.
NOTE
Using RSE for more than approximately
10 minutes with the engine switched off may
drain the vehicle’s battery and make it diffi-
cult or impossible to start the engine.
If this occurs, a message will be displayed
on the RSE system’s screens.
Music
Listening to a music CD1. Insert a CD into the RSE player’s slot with
the disc’s label facing upward.
> The CD will begin to play automatically.
2. Switch on the cordless headphones and
select CH A for the left screen or CH B for
the right screen.
> This will direct the sound to the head-
phones.
3. Adjust the headphone volume by using the
thumb wheel on the headphones.
To listen through the vehicle’s audio sys-
tem speakers, press MODE on the audio
system control panel and select
AUX.
Press
on the RSE remote to route the
sound through the speakers.
Selecting a folder on the CD1. Insert the CD in the player.2.
Press
.
3. Use the navigation buttons (the arrow keys
surrounding the OK button on the RSE
remote control) to highlight a folder and/or
a specific track.
4.
Press
to select a sub-folder.
Playback alternativesThe CD can be played in several different ways.
Use the navigation buttons to select one of the
alternatives.
With the dialogue box displayed:
1. Press the right navigation button to access
the menu to the right..
2. Use the navigation keys to select one of the
alternatives.
3.
Confirm your choice by pressing
.
Changing tracks on the CD
Change tracks on the CD by pressing
or . Hold the respective buttons
down for fast forward or reverse.
Pause1. Pause and restart the CD by pressing
.
2.
Stop the CD by pressing
.
3.
Press
again to eject the CD.

12 Index
12
298
Power moonroof........................................ 86
Power seat............................................... 105
Power steering fluid................................. 218
R
Radiator................................................... 213
Radio
Sirius satellite radio............................257
Radio functions........................................ 248
HD digital radio................................... 253
Rain sensor - windshield wipers................ 72
Rear seat entertainment..........................273
Rear suspension...................................... 286
Rearview mirror with compass.................. 83
Rear window defroster.............................. 74
Recalls, child restraints.............................. 39
Recirculation.............................................. 99
REDUCE SPEED........................................ 62
Refrigerant (A/C system)............................ 94
Refrigerator (XC90 Executive).................. 117
Registering child restraints........................ 39Remote key.............................................. 125
replacing the battery........................... 127
Reporting safety defects
Canada................................................. 19
USA....................................................... 18S
Safety defects, reporting
Canada................................................. 19
USA....................................................... 18
Safety locks, child.................................... 130
Seat belt..................................................... 20
Seat belts
Automatic locking retractor/Emergency
locking retractor.................................... 38
Seats........................................................ 104
Shiftlock.............................................13, 139
Side impact protection (SIPS) airbags....... 31
Sirius satellite radio.................................. 257
Snow chains............................................ 183
Snow tires................................................ 183
Spare tire................................................. 184
Spare tire – accessing.............................190Spare wheel, lowering.............................190
Speedometer............................................. 58
Starting the car........................................ 139
Start inhibitor (immobilizer)...................... 124
Steering wheel lock.................................141
Stone chips, touching up......................... 204
Storage compartments............113, 115, 116
Studded tires........................................... 183
Sun visor.................................................... 87
Symbols, overview................................... 291
T
Tachometer................................................ 58
Tailgate
locking/unlocking................................ 129
opening................................................. 80
Tailgate wipers......................................... 219
Technician certification............................ 293
Temperature control................................ 100
Temperature gauge................................... 58
Temporary spare tire............................... 184
Three-way catalytic converter................. 290