mix by pressing the Recirculate button on the A/C-
heater control.
• To reduce humidity for rapid defogging, the A/C
compressor runs automatically in modes from “mix”
to full defrost when outside temperatures are above
freezing.
• Air conditioning is available in any mode by
pressing the snowflake, A/C on/off button.
MANUAL DUAL ZONE
• The two slide controls enable continuously vari-
able proportioning of the conditioned air.
• The mode control knob enables continuously
variable proportioning of air flow between modes and
has detents adjacent to each icon.
• The blower control provides four separate speeds
and an Off position.
• When the heater-A/C system is off, the HVAC
computer closes the recirculation door to prevent out-
side air from entering the passenger compartment.
• Interior air may be recirculated to speed up
heating or cooling in all modes except defrost and
mix by pressing the Recirculate button on the A/C-
heater control.
• To reduce humidity for rapid defogging, the A/C
compressor runs automatically in modes from “mix”
to full defrost when outside temperatures are above
freezing.
• Air conditioning is available in any mode by
pressing the snowflake, A/C on/off button.
MANUAL THREE ZONE
FRONT CONTROL PANEL
• Primary control of the rear heater-A/C system is
on the instrument panel. This control allows the
driver to set the rear compartment fan speed, to turn
the rear heater-A/C system off, or to give control to
the intermediate seat occupants by switching to the
Rear position. When the rear heater-A/C system is
controlled from the instrument panel, rear air tem-
perature is based on the driver-side temperature con-
trol position, and the mode (floor or overhead air) is
based on the front control’s mode position.
• The mode control knob enables continuously
variable proportioning of air flow between modes but
has detents adjacent to each icon.
• The blower control provides four separate speeds
and an Off position. When the heater-A/C system is
off, the HVAC computer closes the recirculation door
to prevent outside air from entering the passenger
compartment.
• Interior air may be recirculated to speed up
heating or cooling in all modes except defrost and
mix by pressing the Recirculate button on the control
panel.
• To reduce humidity for rapid defogging the A/C
compressor runs automatically in modes from “mix’
to full defrost when outside temperatures are above
freezing.
• Air conditioning is available in any mode by
pressing the snowflake, A/C on/off, button.
REAR CONTROL PANEL
With the rear control active, temperature selection
dictates the air distribution mode (floor or overhead
air) of the rear unit: a cool temperature setting
directs flow to the overhead outlets and a warm tem-
perature setting to the floor.
AUTOMATIC TEMPERATURE CONTROL (ATC)
Comfort temperature or perceived temperature is
affected by air flow, sun levels on exposed skin, etc.
The air temperature may be higher or lower than the
comfort temperature. The automatic temperature
control (ATC) system uses two infrared sensors in the
instrument panel center stack to measure the tem-
perature of the front occupants in order determine
their comfort level relative to their selected comfort
temperature. The integral HVAC computer adjusts
temperature and air flow rates to maintain the cus-
tomer-perceived comfort temperatures. The air tem-
perature in the passenger compartment may be
slightly higher or lower than the comfort tempera-
ture at any time. For instance, on sunny summer
days the air flow will probably be cooler than the
comfort temperature; on cold or cloudy days and at
night it will probably be slightly warmer.
The Three-Zone ATC system uses the infrared sen-
sors located in the instrument panel center stack
along with an offset calibration strategy to meet the
comfort requirements of the rear seat occupants.
FRONT CONTROL PANEL
• AUTO HI/LO – This system features two sets of
automatic control logic that allow either a rapid cool-
down rate or a somewhat slower cool-down rate with
less fan noise. HI-AUTO controls the system to reach
its assigned temperature quickly with a higher fan
speed. LO-AUTO controls the system to reach its
assigned temperature somewhat slower with less fan
noise. Both modes will automatically engage auto
recirculation.
• DEFROST – The defrost function must be man-
ually selected to direct air flow to the windshield to
remove fog or ice. The ATC system cannot automati-
cally sense the presence of fog or ice on the wind-
shield.
• RECIRC – The RECIRC button will close the
air inlet door. If the system is in auto recirc (indica-
tor being displayed automatically), pressing the man-
ual recirc button will disable the auto recirc function
RS
HEATING & AIR CONDITIONING
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HEATING & AIR CONDITIONING (Continued)