Page 169 of 517
OFF BUTTON
DUAL BUTTON
FAN CONTROL BUTTONS Models without navigation system
AUTO BUTTON
DRIVER'S SIDE
TEMPERATURE
DISPLAY
RECIRCULATION BUTTON
DRIVER'S SIDE
TEMPERATURE
CONTROL BUTTONS
U.S. model is shown. AIR CONDITIONING (A/C) BUTTONPASSENGER'S SIDE
TEMPERATURE
CONTROL BUTTONS
PASSENGER'S SIDE
TEMPERATURE DISPLAY
PASSENGER
’S SIDE
TEMPERATURE DISPLAY
MODE INDICATOR DRIVER'S SIDE
TEMPERATURE DISPLAY
Models with navigation system
MODE INDICATOR
REAR WINDOW DEFOGGER/HEATED MIRROR BUTTON
WINDSHIELD DEFROSTER BUTTON
MODE BUTTON
Climate Control System16410/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 170 of 517

Proper use of the climate control
system can make the interior dry and
comfortable, and keep the windows
clear for best visibility.
For the climate control system to
provide heating and cooling, the
engine must be running.
You can adjust the temperatures of
the driver's side and the passenger's
side independently (see page 169).
Voice Control SystemOn models with navigation systemThe climate control system can also
be operated by voice control. See the
navigation system manual for
complete details.Using Automatic Climate Control
The automatic climate control system
adjusts the fan speed and airflow
levels to maintain the interior
temperature you select.
On models with navigation systemIn AUTO mode, the vehicle's interior
temperature is independently
regulated for the driver and
passenger, based on inputs from
sunlight and temperature sensors
(see page 171). If one side of the
vehicle is getting too much sun, the
system lowers the temperature only
on that side.
1. Press the AUTO button. The
indicator in the button comes on. 2. Set the desired temperature by
pushing the driver's side
temperature control buttons (
or
). The selected temperature will
show in the display.
When you push the passenger's side
temperature control buttons, the
indicator in the DUAL button comes
on and the driver's side and
passenger's side temperature can be
controlled independently (see page
169).
The system automatically selects the
proper mix of conditioned and/or
heated air that will, as quickly as
possible, raise or lower the interior
temperature to your preference.
CONTINUED
Climate Control System
165
Features
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 171 of 517

When you set the temperature to its
lowest limit (
) or its highest
limit (
), the system runs at full
cooling or heating only. It does not
regulate the interior temperature.
In cold weather, the fan will not come
on automatically until the heater
starts to develop warm air. Semi-automatic Operation
You can manually select various
functions of the climate control
system when it is in the AUTO mode.
All other features remain
automatically controlled.
Fan Control
Select the fan speed by pressing the
fan control buttons (
or
).
The fan speed is represented by
vertical bars in the display.
Temperature Control
To adjust the desired temperature,
push the temperature control buttons
(
or
). Dual Button
Press the DUAL button to select dual
temperature control mode (see page
169). The indicator in the DUAL
button comes on.
When you press the DUAL button
again (indicator turns off), both sides
adjust to the driver's side
temperature.
Air Conditioning (A/C) Button
Press the A/C button to turn the air
conditioning on and off. You will see
A/C ON or A/C OFF in the display.
When you turn the A/C off, the
system cannot regulate the inside
temperature if you set the
temperature control below the
outside temperature.
Climate Control System16610/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 172 of 517

Recirculation ButtonWhen the indicator in the button is
on, air from the vehicle's interior is
sent through the system again.
When the indicator is off, air is
brought in from the outside of the
vehicle (fresh air mode).
The outside air intakes for the
climate control system are at the
base of the windshield. Keep this
area clear of leaves and other debris.
The system should be left in fresh air
mode under almost all conditions.
Keeping the system in recirculation
mode, particularly with the A/C off,
can cause the windows to fog up.
Switch to recirculation mode when
driving through dusty or smoky
conditions, then return to fresh air
mode.Windshield Defroster Button
This button turns the windshield
defroster on and off.
When you push this button, air flows
from the defroster vents at the base
of the windshield, and the system
automatically switches to fresh air
mode and turns on the A/C. When
the indicator in the button is on, the
passenger's temperature cannot be
set separately from the driver's.
Rear Window Defogger
Button
This button turns the rear window
defogger on and off. Pushing this
button also turns the mirror heaters
on and off (see page 121).
CONTINUED
Climate Control System
167
Features
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 173 of 517
Mode Button
Use the MODE button to select the
vents the air flows from. Some air will
flow from the dashboard corner
vents in all modes.
The mode indicator in the display
changes to the current mode each
time you press the button.
Air flows from the center and
corner vents in the dashboard.Airflow is divided between the
vents in the dashboard and the floor
vents.Air flows from the floor vents.Airflow is divided between the
floor vents and the defroster vents at
the base of the windshield. To Turn Everything Off
If you press the OFF button, the
climate control system shuts off
completely.
●Keep the system off for short
periods only.●To keep stale air and mustiness
from collecting, you should have
the fan running at all times.
When the climate control system is
turned off, the temperature in the
display will also turn off.
Climate Control System16810/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 174 of 517

Dual Temperature Control
Your vehicle has four temperature
control buttons, two for the driver,
and two for the front passenger.
The driver's side and the passenger's
side can be controlled independently
by adjusting these buttons when the
indicator in the DUAL button is lit.
Temperature Control Buttons
To set the driver's side temperature
to a different value than the
passenger's, press the DUAL button,
then press the temperature control
buttons (
or
) on the driver's side.
To set the passenger's side to a
different value than the driver's,
press the temperature control
buttons (
or
) on the passenger's
side. You can adjust the passenger's
side without pressing the DUAL
button first.
Models without navigation system Models with navigation system
DRIVER'S SIDE
TEMPERATURE
DISPLAY PASSENGER'S
SIDE
TEMPERATURE
DISPLAY
DRIVER'S SIDE
TEMPERATURE
DISPLAY PASSENGER'S SIDE
TEMPERATURE DISPLAY
DRIVER'S SIDE
TEMPERATURE
CONTROL
BUTTONS DUAL BUTTON PASSENGER'S
SIDE
TEMPERATURE
CONTROL
BUTTONS
U.S. model is shown.
CONTINUED
Climate Control System
169
Features
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 175 of 517
When you set the temperature to its
lower or upper limit, it is displayed as
or
.
Push AUTO or
. The selected
temperatures appear in the display.
When the indicator in the DUAL
button is off, you can adjust both
sides to the same temperature by
adjusting the driver's side
temperature control buttons (
or
).
DRIVER'S SIDE PASSENGER'S SIDE
REAR POSITION FLOOR VENTS
Climate Control System17010/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 176 of 517
Climate Control SensorsThe climate control system has two
sensors. A sunlight sensor is in the
top of the dashboard, and a
temperature sensor is next to the
steering column. Do not cover the
sensors or spill any liquid on them.SUNLIGHT SENSOR
TEMPERATURE SENSOR
Climate Control System
171
Features
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu