sensor SATURN ASTRA 2009 Owners Manual

When Should an Airbag
Inate?
Frontal airbags are designed to
inate in moderate to severe frontal
or near-frontal crashes to help
reduce the potential for severe
injuries mainly to the driver’s or right
front passenger’s head and chest.
However, they are only designed to
inate if the impact exceeds a
predetermined deployment
threshold. Deployment thresholds
are used to predict how severe
a crash is likely to be in time for the
airbags to inate and help restrain
the occupants.
Whether the frontal airbags will or
should deploy is not based on
how fast your vehicle is traveling.
It depends largely on what you
hit, the direction of the impact,
and how quickly your vehicle
slows down.Frontal airbags may inate at
different crash speeds. For example:If the vehicle hits a stationary
object, the airbags could inate at
a different crash speed than if the
vehicle hits a moving object.
If the vehicle hits an object that
deforms, the airbags could inate
at a different crash speed than if
the vehicle hits an object that
does not deform.
If the vehicle hits a narrow object
(like a pole), the airbags could
inate at a different crash speed
than if the vehicle hits a wide
object (like a wall).
If the vehicle goes into an object
at an angle, the airbags could
inate at a different crash speed
than if the vehicle goes straight
into the object.Thresholds can also vary with
specic vehicle design.
Frontal airbags are not intended to
inate during vehicle rollovers, rear
impacts, or in many side impacts.
In addition, the vehicle has
dual-stage frontal airbags.
Dual-stage airbags adjust the
restraint according to crash severity.
The 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.
Seats and Restraints 1-27
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The passenger sensing system will
turn off the right front passenger
frontal airbag and seat-mounted side
impact airbag under certain
conditions. The driver airbags are
not affected by 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 frontal airbag
and seat-mounted side impact
airbag should be enabled (may
inate) or not.
According to accident statistics,
children are safer when properly
secured in a rear seat in the correct
child restraint for their weight
and size.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 the 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
airbag inates. This is because
the back of the rear-facing child
restraint would be very close to
the inating airbag. A child in a
(Continued)
CAUTION (Continued)
forward-facing child restraint can
be seriously injured or killed if the
right front passenger airbag
inates and the passenger seat is
in a forward position.
Even if the passenger sensing
system has turned off the right
front passenger frontal airbag and
seat-mounted side impact airbag
(if equipped), no system is
fail-safe. No one can guarantee
that an airbag will not deploy under
some unusual circumstance,
even though the airbag(s) are off.
Secure rear-facing child restraints
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.
Seats and Restraints 1-31
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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 the 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, front sensors, or
airbag wiring can affect the
operation of the airbag system.In addition, the vehicle has a
passenger sensing system for the
right front passenger 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. 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).
SeePassenger Sensing
System on page 1-30.
If you have any questions, call
Customer Assistance. 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 12-1.
1-36 Seats and Restraints
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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. SeeCustomer
Satisfaction Procedure on
page 12-1.
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.
Airbag System Check
The airbag system does not need
regularly scheduled maintenance
or replacement. Make sure the
airbag readiness light is working.
SeeAirbag Readiness Light
on page 4-14for more information.
Notice:If an airbag covering
is damaged, opened, or broken,
the airbag may not work properly.
Do not open or break the airbag
coverings. If there are any opened
or broken airbag covers, have
the airbag covering and/or airbag
module replaced. For the
location of the airbag modules,
seeWhat Makes an Airbag
Inflate? on page 1-28. See your
dealer/retailer for service.
Replacing Airbag System
Parts After a Crash
{CAUTION
A crash can damage the
airbag systems in your vehicle.
A damaged airbag system may
not work properly and may not
protect you and your passenger(s)
in a crash, resulting in serious
injury or even death. To help
make sure your airbag systems
are working properly after a crash,
have them inspected and any
necessary replacements made as
soon as possible.
If an airbag inates, you will need
to replace airbag system parts.
See your dealer/retailer for service.
If the airbag readiness light stays on
after the vehicle is started or comes
on when you are driving, the airbag
system may not work properly.
Have the vehicle serviced right away.
SeeAirbag Readiness Light on
page 4-14for more information.
Seats and Restraints 1-37
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The lever on the right side of the
steering column operates the
windshield wipers. Push up or pull
down on the lever
to place it in one of the following
positions.
[(High):For rapid wiping cycles.
— (Low):For slow, steady wiping
cycles.
-- (Intermittent/RainSense™):
See RainSense™ wipers below.
9(Off):Turns off the wipers.For a single wipe pull the lever
down from the off position.
The lever will return to its original
position. For more cycles, hold
the lever down before releasing it.
RainSense™ Wipers
There is a moisture sensor mounted
on the windshield next to the
inside rearview mirror. When active,
the sensor is able to detect
moisture on the windshield and
automatically control the frequency
of the wipes according to the
weather conditions.
To turn on the RainSense feature,
the wipers must be set to the
intermittent delay setting on the
windshield wiper lever.
To turn off RainSense, move the
lever downwards.
Notice:Going through an
automatic car wash with the
wipers on can damage them.
Turn the wipers off when going
through an automatic car wash.
Windshield Washer
{CAUTION
In freezing weather, do not use
your washer until the windshield is
warmed. Otherwise the washer
uid can form ice on the
windshield, blocking your vision.
Pull the windshield wiper lever
toward you to spray washer uid on
the windshield. The wipers will
run for a few cycles to clear the
windshield. For more wash cycles,
pull the lever forward and hold.
Rear Window
Wiper/Washer
For vehicles with the rear
wiper/washer feature, it is turned
on by moving the windshield
wiper lever.
To turn the rear wiper on or off,
push the windshield wiper lever.
Instruments and Controls 4-9
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Passenger Safety Belt
Reminder Light
For vehicles with this light, it
operates the same as the Safety
Belt Reminder Light except that it
is meant for the front passenger.
If the passenger safety belt is
buckled, neither the chime nor the
light comes on.
The front passenger safety belt
warning light and chime may
turn on if an object is put on the
seat such as a briefcase, handbag,
grocery bag, laptop or other
electronic device. To turn off the
warning light and or chime, remove
the object from the seat or buckle
the safety belt
Airbag Readiness Light
This light shows 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 1-24.
This light will come on and stay on
for several seconds when the
vehicle is started. Then the light
should go out.If the airbag readiness light stays on
after the vehicle has been started
or comes on when while driving,
the airbag system may not work
properly. Have the vehicle serviced
right away.
{CAUTION
If the airbag readiness light stays
on after the vehicle is started or
comes on while driving, it means
the airbag system might not be
working properly. The airbags in
the vehicle might not inate in a
crash, or they could even inate
without a crash. To help avoid
injury, have the vehicle serviced
right away.
4-14 Instruments and Controls
ProCarManuals.com

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 can be helpful in many
different driving conditions, but they
can be especially helpful in the
short periods after dawn and before
sunset. Fully functional daytime
running lamps are required on all
vehicles rst sold in Canada.
The DRL system makes the
low-beam headlamps turn on at a
reduced brightness when the
following conditions are met:
The engine is running.
The light sensor determines it is
night and the exterior lamps
control is in the off position.
The light sensor determines it is
daytime.
The taillamps and other lamps will
be off.The DRL turns off when the engine
is not running.
The regular headlamps or parking
lamps should be used when needed.
Delayed Headlamps
Vehicles with headlamp exit delay,
keep the headlamps and taillamps
on for 30 seconds.
To activate:
1. Turn the ignition off and remove
the key from the ignition.
2. Open the driver door.
3. Pull the multifunction lever
toward the steering wheel.
To deactivate, do either of the
following:
Insert the key into the ignition.
Pull the multifunction lever toward
the steering wheel again while
the driver door is open.
Fog Lamps
For vehicles with fog lamps, the
button is located on the instrument
panel, to the left of the steering
wheel.
The ignition and headlamps or
parking lamps must be on to use
the fog lamps. The fog lamps will not
turn on if the high beam headlamps
or ash to pass are active.
#:Press to turn the fog lamps on
or off. An indicator light on the
instrument panel cluster comes on
when the fog lamps are on.
Some localities have laws that
require the headlamps to be
on along with the fog lamps.
5-2 Lighting
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Fuses Usage
8 Horn
10 Door Locks
13 Foglamps
14Windshield Wipers
(high speed)
15Windshield Wipers
(low speed)
16Antilock Brake System,
Brake Lamp Switch
17 Vacuum Pump
18 Starter
20 Air Conditioning Clutch
21Engine Control
Module (ECM)
(Main Relay)
22 ECM (Battery)
24 Fuel Pump/Injectors
26ECM (Sensor and
Actuators)Fuses Usage
27 Power Steering
28Automatic
Transmission (Battery)
29Automatic
Transmission (Ignition)
30 ECM (Ignition)
32 Brake Switch
34Steering Column
Module
35 Radio
36OnStar™ Module/
OnStar™ Interface
Module/DisplayRear Compartment
Fuse Block
To open the liftgate, SeeLiftgate on
page 2-6.
The rear compartment fuse block
is located on the left side of
the cargo area behind a cover.
Use the fuse puller, to remove and
replace fuses.
Vehicle Service and Care 9-37
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Fuses Usage
16Front Passenger Seat
Detection Sensor
17Tire Pressure
Monitoring
System (TPMS)/Rain
Sensor/Inside
Rearview Mirror
18 Interior Lights
21 Outside Mirror Heating
22 Sunroof
23 Rear Power Window
24Diagnostic Link
Connector
29Accessory Power
Outlet (APO)
34 Sunroof
38 Door Locks
39 Seat Heating Driver
40Seat Heating Front
Passenger
Vehicle Service and Care 9-39
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If the vehicle has P205/55R16 size
tires, additional air pressure is
required when driving the vehicle at
speeds of 99 mph (158 km/h) or
higher. Set the cold tire ination
pressure to the maximum ination
pressure shown on the tire sidewall,
or 32 psi (220 kPa), whichever is
lower. See the example following.
Example:
The maximum load and ination
pressure is molded on the tire’s
sidewall, in small letters, near the rim
ange. It reads something like this:
Maximum load 710 kg (1565 lbs)
350 kPa (51 psi) Max. Press.
For this example, the cold tire
ination pressure for high-speed
driving should be set at 32 psi
(220 kPa).
When high-speed driving ends,
return the tire pressure to the
recommended cold ination
pressure shown on the Tire and
Loading Information label.SeeLoading the Vehicle on
page 8-30. Tire pressure should be
checked and correctly set when
the tires are cold. SeeInflation - Tire
Pressure on page 9-47.
Tire Pressure Monitor
System
The Tire Pressure Monitor System
(TPMS) uses radio and sensor
technology to check tire pressure
levels. The TPMS sensors monitor
the air pressure in your vehicle’s tires
and transmit tire pressure readings to
a receiver located in the vehicle.
Each tire, including the spare
(if provided), should be checked
monthly when cold and inated to
the ination pressure recommended
by the vehicle manufacturer on
the vehicle placard or tire ination
pressure label. (If your vehicle
has tires of a different size than the
size indicated on the vehicle
placard or tire ination pressure
label, you should determine the
proper tire ination pressure
for those tires.)As an added safety feature, your
vehicle has been equipped with
a tire pressure monitoring system
(TPMS) that illuminates a low
tire pressure telltale when one or
more of your tires is signicantly
under-inated.
Accordingly, when the low tire
pressure telltale illuminates, you
should stop and check your tires as
soon as possible, and inate them to
the proper pressure. Driving on a
signicantly under-inated tire
causes the tire to overheat and can
lead to tire failure. Under-ination
also reduces fuel efficiency and
tire tread life, and may affect the
vehicle’s handling and stopping
ability.
Please note that the TPMS is
not a substitute for proper tire
maintenance, and it is the driver’s
responsibility to maintain correct tire
pressure, even if under-ination
has not reached the level to trigger
illumination of the TPMS low tire
pressure telltale.
Vehicle Service and Care 9-49
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