air conditioning SATURN AURA 2007 Owners Manual

The Engine Will Remain Running When:

The engine, transaxle, or hybrid battery is
not warmed up yet.
The outside temperature is approximately
−4°F (−20°C).
When the A/C is in Normal Mode.
A/C is in Hybrid Mode and the climate control
system is working to cool the vehicle. See
Automatic Climate Control System on
page 154for more information.
Defrost is selected.
The shift lever is in PARK (P), NEUTRAL (N),
REVERSE (R), INTERMEDIATE (I) or
LOW (L).
The hybrid battery pack charge is low.
The 12V vehicle battery charge is low, or
loads are high.
The hood is not fully closed.
The Engine Will Restart When:

The brake pedal is released.
The accelerator pedal is applied.
When shifting out of DRIVE (D) to any
other gear.
If the A/C button is selected, the duration of
the AUTO STOP will depend on the outside
temperature. This economy mode improves
fuel economy by limiting the effects of the air
conditioning. The warmer it is outside, the
shorter the time before the engine is restarted
to provide cabin cooling.
The climate control system is turned from Off
to On (econ or normal A/C, or oor/
defog/defrost) SeeAutomatic Climate Control
System on page 154for more information.
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The engine is required to run for either heater
or climate control performance. See “Air
Conditioning Engine Start/Stop” under
Automatic Climate Control System on
page 154for more information.
The hybrid battery pack charge is low and
requires recharging.
Auto Stop time is greater than two minutes.
Engine Coolant Heater
Your vehicle may have this feature. In very cold
weather, 0°F (−18°C) or colder, the engine coolant
heater can provide easier starting and better
fuel economy during engine warm-up. Usually, the
coolant heater should be plugged in a minimum
of four hours prior to starting your vehicle. At
temperatures above 32°F (0°C), use of the coolant
heater is not required. Your vehicle may also
have an internal thermostat in the plug end of the
cord. This will prevent operation of the engine
coolant heater when the temperature is at or above
0°F (−18°C) as noted on the cord.
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Climate Controls
Automatic Climate Control System
You can automatically control the heating, cooling,
and ventilation in your vehicle.
Climate Control Inuence on Hybrid
Operation and Fuel Economy
The climate control system is dependent upon other
vehicle systems for heat and power input. Certain
climate control settings can lead to higher fuel
consumption and/or fewer Auto Stops.The following are climate control settings that use
more fuel:
Normal air conditioning mode.
The defrost mode.
Extreme temperature settings, such as 60°F
(15°C) / 90F (32°C).
High fan speed settings.
The following can help reduce fuel consumption:
Use of the full automatic control method as
described under Automatic Operation.
Use hybrid air conditioning, instead of the
normal air conditioning.
Select a temperature setting that is higher in
hot weather and lower in cold weather.
Only use defrost to clear the windows.
These suggestions will help to reduce fuel
consumption, but may reduce overall comfort.
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Automatic Operation
AUTO (Automatic):Select AUTO on both the fan
speed knob and the air delivery mode knob to
activate the automatic system. When automatic
operation is active the system controls the
inside temperature and air delivery.
Use the steps below to place the entire system in
full automatic control:
1. Turn the fan knob and the mode knob to the
AUTO position.
The current set temperature displays. When
AUTO is selected, the air conditioning
operation and air inlet is automatically
controlled. The air conditioning compressor
runs while the outside temperature is
over about 40°F (4°C). The air inlet is normally
set to outside air. If it is hot outside, the air
inlet can automatically switch to recirculate
inside air to help quickly cool down your
vehicle.
2. Set the temperature.
An initial setting of 73°F (23°C) is
recommended. Allow about 20 minutes for the
system to regulate. Press the
worxarrow
temperature buttons to adjust the temperaturesetting as necessary. If the temperature is set
at 60°F (15°C) the system remains at the
maximum cooling setting. If the temperature is
set at 90°F (32°C) the system remains at the
maximum heat setting. Choosing either
maximum setting does not cause the vehicle to
heat or cool any faster.
Be careful not to cover the sensor located on
the top of the instrument panel near the
windshield. This sensor regulates air
temperature based on the intensity of the sun.
Also do not cover the sensor grille on the
lower right side of the climate control
faceplate, as this regulates the inside
temperature.
To avoid blowing cold air at engine start-up in
cold weather, the system delays turning on
the fan until warm air is available. The length
of delay depends on the engine coolant
temperature. Turning the fan knob overrides
this delay and changes the fan to the selected
speed.
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Manual Operation
The air delivery mode or fan speed, can manually
be adjusted.
Fan Speed Knob
9(Off):Select this position to turn off the fan.
Outside air still enters the vehicle. The direction
can be changed by changing the mode position.
The temperature can also be adjusted using either
the up or down arrow temperature buttons.
9(Fan):Turn the knob with the fan symbol to
manually adjust the fan speed.
wxTemperature Control:Press thewand
xarrows to increase or decrease the temperature
inside the vehicle.
Air Delivery Mode Knob
H(Vent):Use this mode to direct air to the
instrument panel outlets.
)(Bi-Level):Use this mode to direct half of the
air to the instrument panel outlets, and the
remaining air to the oor outlets.
6(Floor):Use this mode to direct most of the
air to the oor outlets with some air directed to the
side window outlets.
The right knob can also be used to select defog or
defrost modes. Information on defogging and
defrosting can be found later in this section.
#(Normal Air Conditioning):Press this button
to turn the air conditioning compressor on and
off. A light above the button comes on while the air
conditioning is on.
When air conditioning is selected or is in AUTO
mode, the system runs the air conditioning
automatically to cool and dehumidify the air
entering the vehicle.
While in this mode, the hybrid system does not
shut the engine down at complete stops.
On hot days, open the windows long enough to let
hot inside air escape. This reduces the time it
takes for your vehicle to cool down. Then
keep your windows closed for the air conditioner
to work its best.
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On cool, but sunny days while using manual
operation of the automatic system, use bi-level to
deliver warm air to the oor and cooler air to
the instrument panel outlets. To warm or cool the
air delivered, press the temperature buttons to
the desired setting.
In AUTO mode the system cools and dehumidies
the air inside the vehicle. Also while in AUTO
mode, the system maximizes its performance by
using recirculation as necessary.
Heating:On cold days when using manual
operation of the automatic system, use oor mode
to deliver air to the oor outlets. To warm or
cool the air delivered, push the temperature
buttons to the desired setting.
To use the automatic mode, turn the knob to
AUTO and adjust the temperature by pressing the
temperature buttons.
When the heater is in use, there might be slight
noise or vibration during Auto Stops. This is due to
the coolant circulation pump that continues to
circulate heat through the system during the
engine Auto Stop.
The heater works best if the windows are kept
closed.h(Recirculation):Press the button to turn on
the recirculation mode. The air inside the vehicle
recirculates through the climate control system and
the vehicle, not from outside your vehicle. This
mode is helpful when trying to limit odors
from entering the vehicle and for maximum air
conditioning performance in hot weather. When the
button is pressed, an indicator light above the
button comes on. The recirculation indicator light
blinks three times if recirculation is used in a
mode in which it cannot function. Only use this
mode when it is needed for comfort, since window
fogging rapidly occurs if the air conditioning
compressor is not engaged.
Press this button to cancel the auto recirculation
feature. Each time the vehicle is started, the
system reverts to the auto recirculation function.
If you select recirculation while in defrost, defog or
oor, the light on the button ashes three times
and then goes out to indicate that this is not
allowed. This is to prevent window fogging.
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When the weather is cool or damp, operating the
system in recirculation for extended periods of
time can cause fogging of the vehicle’s windows.
To clear the fog, select either defog or defrost.
Make sure the air conditioning is on. Allow the air
conditioning to run automatically to help
dehumidify the air.
N(Hybrid Air Conditioning):The hybrid A/C
function tries to balance fuel economy and air
conditioning comfort. When hybrid A/C is used in
warm weather, your vehicle gets better fuel
economy and/or more frequent autostops at the
expense of cabin cooling performance compared
to normal air conditioning.
Maximum Air Conditioning
On hot days, open the windows to let hot inside
air escape; then close them. This helps to reduce
the time it takes for your vehicle to cool down.
It also helps the system to operate more efficiently.
For quick cool down on hot days, do the
following:
1. Select the
Cvent mode.
2. Select the highest fan speed.
3. Select
#air conditioning.
4. Select the
hrecirculation mode.
5. Select the coolest temperature.
Using these settings together for long periods of
time may cause the air inside of your vehicle
to become too dry. To prevent this from
happening, after the air in your vehicle has cooled,
turn the recirculation mode off.
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Defogging and Defrosting
Fog on the inside of windows is a result of high
humidity (moisture) condensing on the cool window
glass. This can be minimized if the climate
control system is used properly. There are two
modes to choose from to clear fog or frost from the
windshield. Use the defog mode to clear the
windows of fog or moisture and warm the
passengers. Use the defrost mode to remove fog
or frost from the windshield more quickly.
-(Defog):Turn the mode knob to this position
to select the defog setting, which delivers air to the
oor and windshield outlets. Use this setting to
clear the windows of fog or moisture.
0(Defrost):Turn the mode knob to this position
to defrost the windshield. The system automatically
controls the fan speed if defrost is selected from
the AUTO mode. If the outside temperature is 40°F
(4°C) or warmer, the air conditioning compressor
automatically runs to help dehumidify the air
and dry the windshield. The air conditioning
indicator light blinks three times if the compressor
is turned off while in this mode.
The engine will not perform Auto Stops when the
defrost mode is on.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
<(Rear):Press this button to turn the rear
window defogger on or off. An indicator light above
the button comes on to show that the rear
window defogger is activated.
If driving below 50 mph (80 km/h), the rear window
defogger turns off about 15 minutes after the
button is pressed. If additional warming time is
needed, press the button again.
If the vehicle’s speed is maintained above 50 mph
(80 km/h), the rear window defogger remains
on once the button is pressed.
If your vehicle has heated outside mirrors, the
surface of the outside mirrors also heat when the
rear window defogger is activated. SeeOutside
Power Mirrors on page 126.
Notice:Do not use a razor blade or sharp
object to clear the inside rear window. Do not
adhere anything to the defogger grid lines
in the rear glass. These actions may damage
the rear defogger. Repairs would not be
covered by your warranty.
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Outlet Adjustment
There are four main air outlets on the instrument
panel. Use the lever located in the center of
each outlet by moving it either side-to-side or up
and down, to change the direction and amount
of airow in the vehicle. The center thumbwheel
does not control the main outlets.
Dedicated Rear Seat Air Outlet
For vehicles with this feature, the dedicated rear
seat air outlet is located in the center of the
instrument panel above the two main center
outlets. This outlet is aimed to provide comfort to
the rear seat passengers, especially while
using air conditioning in warm weather.
Use the thumbwheel in the center of the outlet to
turn the airow on or off. This can be adjusted
to improve front seat passenger comfort if
there are no rear seat passengers. The direction
of airow cannot be adjusted since it is directed
towards the rear seat passengers.
Do not attempt to move the horizontal vent vane,
as breakage can occur.
Operation Tips
Clear away any ice, snow, or leaves from the
air inlets at the base of the windshield that
can block the ow of air into your vehicle.
Do not use non-GM approved hood deectors
as they could adversely affect the performance
of the system.
Keep the path under the front seats clear of
objects to help circulate the air inside of
your vehicle more effectively.
When an objectionable odor outside the
vehicle is encountered, use the recirculation
mode, with the temperature knob at a
comfortable setting to prevent the odor from
entering the vehicle through the ventilation
system. This can be helpful when driving
through a long tunnel with poor ventilation.
However, extended usage of this mode in cold
or cool weather can cause window fogging.
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Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire
pressing outward on each square inch of the
tire. Air pressure is expressed in pounds
per square inch (psi) or kilopascal (kPa).
Accessory Weight:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission,
power steering, power brakes, power windows,
power seats, and air conditioning.
Aspect Ratio:The relationship of a tire’s height
to its width.
Belt:A rubber coated layer of cords that is
located between the plies and the tread. Cords
may be made from steel or other reinforcing
materials.
Bead:The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.Cold Tire Pressure:The amount of air pressure
in a tire, measured in pounds per square inch
(psi) or kilopascals (kPa) before a tire has built up
heat from driving. SeeInation - Tire Pressure
on page 304.
Curb Weight:The weight of a motor vehicle with
standard and optional equipment including the
maximum capacity of fuel, oil, and coolant,
but without passengers and cargo.
DOT Markings:A code molded into the sidewall
of a tire signifying that the tire is in compliance
with the U.S. Department of Transportation (DOT)
motor vehicle safety standards. The DOT code
includes the Tire Identication Number (TIN),
an alphanumeric designator which can also identify
the tire manufacturer, production plant, brand,
and date of production.
GVWR:Gross Vehicle Weight Rating. See
Loading Your Vehicle on page 242.
GAWR FRT:Gross Axle Weight Rating for the
front axle. SeeLoading Your Vehicle on page 242.
GAWR RR:Gross Axle Weight Rating for the
rear axle. SeeLoading Your Vehicle on page 242.
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