sensor SATURN AURA 2008 Owners Manual

Frontal airbags are not intended to inate during vehicle
rollovers, rear impacts, or in many side impacts.
In addition, your vehicle has dual-stage frontal airbags.
Dual-stage airbags adjust the restraint according to
crash severity. Your vehicle has electronic frontal
sensors, which help the sensing system distinguish
between a moderate frontal impact and a more severe
frontal impact. For moderate frontal impacts, dual-stage
airbags inate at a level less than full deployment.
For more severe frontal impacts, full deployment occurs.
Your vehicle has seat-mounted side impact and
roof-rail airbags. SeeAirbag System on page 1-54.
Seat-mounted side impact and roof-rail airbags
are intended to inate in moderate to severe side
crashes. Seat-mounted side impact and roof-rail
airbags will inate if the crash severity is above the
system’s designed threshold level. The threshold
level can vary with specic vehicle design.Seat-mounted side impact and roof-rail airbags are
not intended to inate in frontal impacts, near-frontal
impacts, rollovers, or rear impacts. A seat-mounted side
impact airbag is intended to deploy on the side of the
vehicle that is struck. A roof-rail airbag is intended
to deploy on the side of the vehicle that is struck.
In any particular crash, no one can say whether an
airbag should have inated simply because of the
damage to a vehicle or because of what the repair costs
were. For frontal airbags, ination is determined by
what the vehicle hits, the angle of the impact, and how
quickly the vehicle slows down. For seat-mounted
side impact and roof-rail airbags, deployment is
determined by the location and severity of the
side impact.
1-60
ProCarManuals.com

The passenger sensing system will turn off the right
front passenger’s frontal airbag and seat-mounted side
impact airbag under certain conditions. The driver’s
airbags are not part of the passenger sensing system.
The passenger sensing system works with sensors
that are part of the right front passenger’s seat.
The sensors are designed to detect the presence of a
properly-seated occupant and determine if the right front
passenger’s frontal airbag and seat-mounted side
impact airbag should be enabled (may inate) or not.
Accident statistics show that children are safer if
they are restrained in the rear rather than the front seat.
We recommend that children be secured in a rear
seat, including: an infant or a child riding in a rear-facing
child restraint; a child riding in a forward-facing child
seat; an older child riding in a booster seat; and children,
who are large enough, using safety belts.
A label on your sun visor says, “Never put a rear-facing
child seat in the front.” This is because the risk to the
rear-facing child is so great, if the airbag deploys.
{CAUTION:
A child in a rear-facing child restraint can be
seriously injured or killed if the right front
passenger’s airbag inates. This is because
the back of the rear-facing child restraint
would be very close to the inating airbag.
Even though the passenger sensing system is
designed to turn off the right front passenger’s
frontal and seat-mounted side impact airbag
(if equipped) if the system detects a rear-facing
child restraint, no system is fail-safe, and
no one can guarantee that an airbag will not
deploy under some unusual circumstance,
even though it is turned off. We recommend
that rear-facing child restraints be secured in
a rear seat, even if the airbag(s) are off.
If you secure a forward-facing child restraint in
the right front seat, always move the front
passenger seat as far back as it will go. It is
better to secure the child restraint in a rear seat.
1-64
ProCarManuals.com

Servicing Your Airbag-Equipped
Vehicle
Airbags affect how your vehicle should be serviced.
There are parts of the airbag system in several
places around your vehicle. Your dealer/retailer and
the service manual have information about servicing
your vehicle and the airbag system. To purchase
a service manual, seeService Publications Ordering
Information on page 7-15.
{CAUTION:
For up to 10 seconds after the ignition is
turned off and the battery is disconnected,
an airbag can still inate during improper
service. You can be injured if you are close
to an airbag when it inates. Avoid yellow
connectors. They are probably part of the
airbag system. Be sure to follow proper
service procedures, and make sure the person
performing work for you is qualied to do so.
Adding Equipment to Your
Airbag-Equipped Vehicle
Q:Is there anything I might add to or change
about the vehicle that could keep the airbags
from working properly?
A:Yes. If you add things that change your vehicle’s
frame, bumper system, height, front end or side
sheet metal, they may keep the airbag system from
working properly. Changing or moving any parts
of the front seats, safety belts, the airbag sensing
and diagnostic module, steering wheel, instrument
panel, roof-rail airbag modules, ceiling headliner
or pillar garnish trim, overhead console, front
sensors, side impact sensors, or airbag wiring
can affect the operation of the airbag system.
In addition, your vehicle has a passenger
sensing system for the right front passenger’s
position, which includes sensors that are part
of the passenger’s seat. The passenger sensing
system may not operate properly if the original
seat trim is replaced with non-GM covers,
upholstery or trim, or with GM covers,
upholstery or trim designed for a different vehicle.
1-68
ProCarManuals.com

Any object, such as an aftermarket seat heater
or a comfort enhancing pad or device, installed
under or on top of the seat fabric, could also
interfere with the operation of the passenger
sensing system. This could either prevent proper
deployment of the passenger airbag(s) or prevent
the passenger sensing system from properly
turning off the passenger airbag(s). See
Passenger Sensing System on page 1-63.
If you have any questions about this, you should
contact Customer Assistance before you modify
your vehicle. The phone numbers and addresses
for Customer Assistance are in Step Two of
the Customer Satisfaction Procedure in this
manual. SeeCustomer Satisfaction Procedure
on page 7-2.Q:Because I have a disability, I have to get my
vehicle modied. How can I nd out whether
this will affect my airbag system?
A:If you have questions, call Customer Assistance.
The phone numbers and addresses for Customer
Assistance are in Step Two of the Customer
Satisfaction Procedure in this manual. See
Customer Satisfaction Procedure on page 7-2.
In addition, your dealer/retailer and the service
manual have information about the location of
the airbag sensors, sensing and diagnostic module
and airbag wiring.
1-69
ProCarManuals.com

Headlamps on Reminder
If you open the driver’s door and turn off the ignition
while leaving the lamps on, you will hear a warning
chime.
Headlamps Off in PARK (P)
This feature works when the ignition is in the ON/RUN
position and it is dark outside. To turn the headlamps off
when it is dark outside but keep other exterior lights on,
turn the exterior lamp control to the parking lamp position.
To turn on the headlamps along with the other lamps
when it is dark outside, turn the exterior lamp control to
the AUTO or headlamp position.
This function does not work for vehicles rst sold in
Canada.
Delayed Headlamps
The delayed headlamps feature keeps the headlamps
on for 20 seconds after the key is turned to LOCK/OFF,
then the headlamps automatically turn off.
To override the 20 second delayed headlamp feature
while it is active turn the turn signal/multifunction
lever up one position and then back to AUTO.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day. DRL
are helpful in many different driving conditions, but they
can be especially helpful in the short periods after dawn
and before sunset. Fully functional DRL are required on
all vehicles rst sold in Canada. The vehicle has a light
sensor on top of the instrument panel that controls the
DRL. Make sure it is not covered, or the head lamps will
be on when they are not needed.
The DRL system makes the low-beam headlamps come
on at a reduced brightness when the following
conditions are met:
The ignition is on.
The exterior lamps control is in AUTO.
The exterior lamps control is in the parking lamps
only position (This applies only to vehicles that
are rst sold in Canada).
The light sensor detects daytime light.
The parking brake is released or the vehicle is not
in PARK.
When the DRL system is on, the taillamps, sidemarker
lamps, parking lamps, and instrument panel lights are not
on unless you turn the exterior lamps control to the
parking lamp position.
As with any vehicle, you should turn on the regular
headlamp system when they are needed.
3-14
ProCarManuals.com

Automatic Headlamp System
When it is dark enough outside, the automatic headlamp
system turns on the headlamps at the normal brightness
along with other lamps such as the taillamps,
sidemarker, parking lamps, and the instrument panel
lights. The radio lights will also be dim.
Your vehicle has a light sensor on top of the instrument
panel that controls the automatic headlamp system.
Make sure it is not covered or the automatic headlamp
system will be on when it is not needed.
There is a delay in the transition between the daytime
and nighttime operation of the DRL and the automatic
headlamp systems so that driving under bridges or
bright overhead street lights does not affect the system.
The DRL and automatic headlamp systems will only
be affected when the light sensor sees a change
in lighting lasting longer than this delay.If vehicle is started in a dark garage, the automatic
headlamp system comes on immediately. Once
the vehicle leaves the garage, it takes about one minute
for the automatic headlamp system to change to DRL
if it is light outside. During that delay, the instrument
panel cluster may not be as bright as usual. Make sure
the instrument panel brightness control is in the full
bright position. See “Instrument Panel Brightness
Control” underInstrument Panel Brightness on
page 3-16.
To idle the vehicle with the automatic headlamp system
off, turn the ignition on and set the exterior light
switch to the off/on position. For vehicles rst sold in
Canada, the transmission must stay in PARK (P) for
this function.
The regular headlamps should be used when needed.
3-15
ProCarManuals.com

Parade Dimming
Parade dimming is a separate lighting mode that comes
on while the parking lamps are turned on during the
day. It prevents the display lights and indicator
lights from being dim, while the parking lamps are
used during the day.
Overhead Console Reading Lamps
The vehicle may have reading lamps on the overhead
console. These lamps come on when the doors are
opened if the lamp switch is not in the OFF position.
Press the side of each lamp to turn them on and
off, while the doors are closed.
Overhead Ambient Lighting
These lamps will automatically turn on and off as
controlled by the light sensor located on top of the
instrument panel.
Trunk Lamp
The trunk lamp comes on when the trunk is opened and
turns off when the trunk is closed.
Battery Run-Down Protection
Your vehicle has a battery run-down feature designed to
protect the vehicle’s battery.
When any interior lamp (trunk, reading lamps, or dome
lamp) is left on when the ignition is turned off, the
battery run-down protection system automatically shuts
the lamp off after 20 minutes. This prevents draining
of the battery.
To reactivate the interior lamps, do one of the following:
Open any door.
Press any Remote Keyless Entry (RKE)
transmitter button.
Press the power door lock switch.
Press the remote trunk release.
Turn the lamp that was left on to off and then
to on again.
3-17
ProCarManuals.com

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 the 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 temperature setting 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.
3-20
ProCarManuals.com

Airbag Readiness Light
There is an airbag readiness light on the instrument
panel cluster, which shows the airbag symbol. The
system checks the airbag’s electrical system for
malfunctions. The light tells you if there is an electrical
problem. The system check includes the airbag
sensor, the pretensioners, the airbag modules, the
wiring and the crash sensing and diagnostic module.
For more information on the airbag system, seeAirbag
System on page 1-54.
This light will come on
when you start your
vehicle, and it will ash
for a few seconds.
The light should go out
and the system is ready.
If the airbag readiness light stays on after you start
the vehicle or comes on when you are driving,
your airbag system may not work properly.
Have your vehicle serviced right away.{CAUTION:
If the airbag readiness light stays on after you
start your vehicle, it means the airbag system
may not be working properly. The airbags in
your vehicle may not inate in a crash, or they
could even inate without a crash. To help
avoid injury to yourself or others, have your
vehicle serviced right away if the airbag
readiness light stays on after you start your
vehicle.
The airbag readiness light should ash for a few seconds
when you start the engine. If the light does not come on
then, have it xed immediately. If there is a problem with
the airbag system, an airbag Driver Information Center
(DIC) message may also come on. SeeDIC Warnings
and Messages on page 3-46for more information.
3-29
ProCarManuals.com

Here are some important things to consider before you
do recreational vehicle towing:
What is the towing capacity of the towing vehicle?
Be sure you read the tow vehicle manufacturer’s
recommendations.
How far will you tow? Some vehicles have
restrictions on how far and how long they can tow.
Do you have the proper towing equipment?
See your dealer/retailer or trailering professional for
additional advice and equipment recommendations.
Is your vehicle ready to be towed? Just as you
would prepare your vehicle for a long trip, you
will want to make sure your vehicle is prepared to
be towed. SeeBefore Leaving on a Long Trip
on page 4-16.
Dinghy Towing
When dinghy towing, the vehicle should be run at the
beginning of each day and at each RV fuel stop for
about ve minutes. This will ensure proper lubrication of
transmission components.You may dinghy tow your vehicle from the front following
these steps:
1. Position the vehicle to tow and then secure it.
2. Turn the ignition to LOCK/OFF.
3. Set the parking brake.
4. To prevent the battery from draining while the vehicle
is being towed, remove the following fuse from the
instrument panel fuse block: (IGN SENSOR). See
Instrument Panel Fuse Block on page 5-87for more
information.
5. Turn the ignition key to ACC/ACCESSORY.
4-28
ProCarManuals.com