2010 VOLVO XC90 climate control

03 Climate
Electronic climate control (ECC)
03
96* Option/accessory, for more information, see Introduction.
will light up to indicate that the defrost function
is engaged.
•Blower speed increases automatically and
the air conditioning will switch on (if not
already on and if the passenger compart-
ment blower is not turned off) to dehumid-
ify the air in the passenger compartment.
•Recirculation will not function while defrost
is engaged.
The climate system will return to its previous
settings when the defroster function is
switched off.
Rear window and door mirror
defrosters
This function defrosts/deices the rear window
and door mirrors. The LED in the switch will
light up to indicate that the heating function is
engaged. For additional information on this
function see page 70.
Never use ice scrapers made of metal as they
can easily scratch the mirror surface.
Heated front seats*
1. Press the switch once for maximum seat
heating. Both LEDs in the switch will be lit.
2. Press the switch a second time for comfort
heating. One LED in the switch will be lit.3. Press the switch a third time to turn the
heating off completely. The LED will go off.
The seat heating for the passenger seat should
be switched off when the seat is not occupied.
Heated rear seats (XC90 Executive*)
G030976
Button for rear seat heating
Heating for the respective outboard rear seats
can be switched on or off with buttons on either
side of the center console (see the illustration).
To switch on rear seat heating:

Press the button.
> The symbol in the button will illuminate.To switch off rear seat heating:

Press the button.
> The symbol in the button will go out.
Temperature
These controls are used to individually set the
temperature for both sides of the passenger
compartment. Please note that the compart-
ment will not be heated or cooled faster by set-
ting the temperature higher or lower than nec-
essary.
Set the control to the temperature you prefer.
Blower control1
Turn the control clockwise to increase or coun-
terclockwise to decrease the blower speed.
Pressing the AUTO switch will automatically
regulate blower speed and override manual
adjustment.
Turning the blower control counterclockwise
until an orange LED comes on will turn both the
blower and the air conditioning off.
Blower control for rear climate
system*
Turn the control to increase or decrease blower
speed.
1See also see page 90.

03 Climate
Electronic climate control (ECC)
03
97
OperationPress to operate the air quality sensor (normal
setting).
or:
Select one of the following three functions by
pressing 1, 2 or 3 times.
1.
The AUT LED lights. The air quality sensor
is now activated.
2. No LED lights. Recirculation is not acti-
vated unless needed to cool the passenger
compartment in a warm climate.
3.
The MAN LED lights. Recirculation is now
activated.
Keep in mind the following:
•Make it a rule to have the air quality sensor
activated at all times.
•Recirculation is limited in cold climates to
avoid fogging.
•If window fogging occurs, you should
deactivate the air quality sensor. Also use
the defroster functions for the windshield,
side windows and rear window, see
page 94.
•The filter should be changed at the inter-
vals recommended in the service sched-
ule. However, if the vehicle is used in a
severely contaminated environment, it may
be necessary to change the filter more fre-
quently.

07 Wheels and tires
Uniform Tire Quality Grading
07
177
ALL PASSENGER VEHICLE TIRES MUST
CONFORM TO FEDERAL SAFETY
REQUIREMENTS IN ADDITION TO THESE
GRADES
Quality grades can be found, where appli-
cable, on the tire sidewall between the tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
TREADWEARThe treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course. For example, a tire gra-
ded 150 would wear one and one half (1 1/2)
times as well on the government course as a
tire graded 100. The relative performance of
tires depends upon the actual conditions of
their use, however, and many depart signifi-
cantly from the norm due to variation in driving
habits, maintenance practices and differences
in road characteristics and climate.
TRACTIONThe traction grades, from highest to lowest, are
AA, A, B, and C, as measured under controlled
conditions on specified government test sur-
faces of asphalt and concrete. A tire marked C
may have poor traction performance.
WARNING
The traction grade assigned to this tire is
based on braking (straight-ahead) traction
tests and is not a measure of cornering
(turning) traction.
TEMPERATUREThe temperature grades are AA (the highest),
A, B, and C, representing the tire's resistance
to the generation of heat and its ability to dis-
sipate heat when tested under controlled con-
ditions on a specified indoor laboratory test
wheel. Sustained high temperature can cause
the material of the tire to degenerate and
reduce tire life, and excessive temperature can
lead to sudden tire failure. The grade C corre-
sponds to a minimum level of performance that
all passenger vehicle tires must meet under the
Federal Motor Safety Standard No. 109.
Grades B and A represent higher levels of per-
formance on the laboratory test wheel than the
minimum required by law.
WARNING
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, under-
inflation, or excessive loading, either sepa-
rately or in combination, can cause heat
buildup and tire failure.

12 Index
12
280
1, 2, 3 ...
12-volt sockets.......................................... 75
A
A/C (air conditioning)...........................94, 95
ABS.......................................................... 145
Airbag system............................................ 20
Air cleaner................................................ 207
Air conditioning.......................................... 90
Air distribution...................................... 92, 95
Air quality sensor....................................... 94
Air vents..................................................... 92
Alarm........................................................ 127
All Wheel Drive......................................... 144
All Wheel Drive – towing.......................... 152
Anti-lock brake system
warning light......................................... 56
Anti-lock Brake System (ABS)................. 145
Ashtray..................................................... 110
Audio
system introduction............................ 238Audio system
HD digital radio................................... 246
Rear seat entertainment..................... 259
AUTO (climate control)......................... 95, 96
Automatic transmission........................... 140
Autostart..........................................135, 137
AUX (audio system).................................253
Average speed........................................... 71
AWD......................................................... 144
B
Bass......................................................... 241
Battery..................................................... 205
maintenance....................................... 214
specifications...................................... 275
Battery – replacing................................... 215
Belt check................................................ 206
Black box................................................... 11
Black Box (Vehicle Event Data)............... 202
Blind Spot Information System (BLIS)..... 160
Blower (fan)................................................ 96Booster cushion
accessory............................................. 42
integrated.............................................. 47
Brake fluid................................................ 212
Brake system........................................... 145
Bulbs........................................................ 217
Bulbs, replacing....................................... 217
C
Capacities, fluids..................................... 270
Capacity weight....................................... 176
Cargo area cover..................................... 117
Cargo grid................................................ 116
Cargo net................................................. 114
Catalytic converter, three-way................. 277
CD Pause................................................. 255
Center console buttons............................. 60
Central locking system - remote key....... 121
Changing a wheel.................................... 182
Changing coolant....................................206
Charge air cooler..................................... 274
Check Engine warning light....................... 57