gas type SATURN VUE 2009 Owners Manual

Page 53 of 386

What Makes an Airbag
Inate?
In a deployment event, the sensing
system sends an electrical signal
triggering a release of gas from the
inator. Gas from the inator lls
the airbag causing the bag to
break out of the cover and deploy.
The inator, the airbag, and
related hardware are all part
of the airbag module.
Frontal airbag modules are located
inside the steering wheel and
instrument panel. For vehicles with
seat-mounted side impact airbags,
there are airbag modules in the side
of the front seatbacks closest to
the door. For vehicles with roof-rail
airbags, there are airbag modules
in the ceiling of the vehicle, near the
side windows that have occupant
seating positions.
How Does an Airbag
Restrain?
In moderate to severe frontal or
near frontal collisions, even belted
occupants can contact the steering
wheel or the instrument panel.
In moderate to severe side
collisions, even belted occupants
can contact the inside of the vehicle.
Airbags supplement the protection
provided by safety belts. Frontal
airbags distribute the force of
the impact more evenly over the
occupant’s upper body, stopping
the occupant more gradually.
Seat-mounted side impact and
roof-rail airbags distribute the force
of the impact more evenly over
the occupant’s upper body.Rollover capable roof-rail airbags
are designed to help contain the
head and chest of occupants in the
outboard seating positions in the
rst and second rows. The rollover
capable roof-rail airbags are
designed to help reduce the risk of
full or partial ejection in rollover
events, although no system can
prevent all such ejections.
But airbags would not help in
many types of collisions, primarily
because the occupant’s motion
is not toward those airbags.
SeeWhen Should an Airbag Inflate?
on page 1-47for more information.
Airbags should never be regarded
as anything more than a supplement
to safety belts.
Seats and Restraint System 1-49
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Page 244 of 386

Hitches
It is important to have the correct
hitch equipment. Crosswinds,
large trucks going by and rough
roads are a few reasons why
the right hitch is needed.
The rear bumper on the vehicle is
not intended for hitches. Do not
attach rental hitches or other
bumper-type hitches to it. Use
only a frame-mounted hitch that
does not attach to the bumper.
Will any holes be made in the
body of the vehicle when the
trailer hitch is installed? If so,
be sure to seal the holes when
the hitch is removed. If they are
not sealed, deadly carbon
monoxide (CO) from the engine’s
exhaust can get into the vehicle.
SeeEngine Exhaust on
page 2-28. Sealing the holes will
also prevent dirt and water from
entering the vehicle.
Safety Chains
Always attach chains between the
vehicle and the trailer. Cross the
safety chains under the tongue of
the trailer to help prevent the tongue
from contacting the road if it
becomes separated from the hitch.
Instructions about safety chains
may be provided by the hitch
manufacturer or by the trailer
manufacturer. Follow the
manufacturer’s recommendation
for attaching safety chains and do
not attach them to the bumper.
Always leave just enough slack so
the rig can turn. Never allow safety
chains to drag on the ground.
Trailer Brakes
A loaded trailer that weighs more
than 1,000 lbs (450 kg) needs to
have its own brake system that is
adequate for the weight of the trailer.Be sure to read and follow the
instructions for the trailer brakes so
they are installed, adjusted and
maintained properly. Because the
vehicle has StabiliTrak
®, do not try
to tap into the vehicle’s hydraulic
brake system. If you do, both brake
systems will not work well, or at all.
Driving with a Trailer
{CAUTION
When towing a trailer, exhaust
gases may collect at the rear
of the vehicle and enter if the
liftgate, trunk/hatch, or rear-most
window is open.
Engine exhaust contains carbon
monoxide (CO) which cannot be
seen or smelled. It can cause
unconsciousness and even death.
(Continued)
4-40 Driving Your Vehicle
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Page 254 of 386

If the octane rating is less than 87,
you might notice an audible knocking
noise when you drive, commonly
referred to as spark knock. If this
occurs, use a gasoline rated at 87
octane or higher as soon as possible.
If you are using gasoline rated at 87
octane or higher and you hear heavy
knocking, the engine needs service.
Gasoline Specications
At a minimum, gasoline should
meet ASTM specication D 4814
in the United States or CAN/
CGSB-3.5 or 3.511 in Canada.
Some gasolines contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend
against the use of gasolines
containing MMT. SeeAdditives on
page 5-6for additional information.
California Fuel
If the vehicle is certied to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specications. See
the underhood emission control
label. If this fuel is not available in
states adopting California emissions
standards, the vehicle will operate
satisfactorily on fuels meeting federal
specications, but emission control
system performance might be
affected. The malfunction indicator
lamp could turn on and the vehicle
might fail a smog-check test. See
Malfunction Indicator Lamp on
page 3-35. If this occurs, return to
your authorized dealer/retailer for
diagnosis. If it is determined that the
condition is caused by the type of
fuel used, repairs might not be
covered by the vehicle warranty.
Additives
To provide cleaner air, all gasolines
in the United States are now required
to contain additives that help prevent
engine and fuel system deposits
from forming, allowing the emission
control system to work properly.
In most cases, you should not
have to add anything to the fuel.
However, some gasolines contain
only the minimum amount of additive
required to meet U.S. Environmental
Protection Agency regulations. To
help keep fuel injectors and intake
valves clean, or if the vehicle
experiences problems due to dirty
injectors or valves, look for gasoline
that is advertised as TOP TIER
Detergent Gasoline.
5-6 Service and Appearance Care
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Page 287 of 386

Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbs
on page 5-41.
For any bulb changing procedure
not listed in this section, contact
your dealer/retailer.
Halogen Bulbs
{CAUTION
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.
Headlamps
To replace one of the headlamp
bulbs, use the following procedure.
To replace the parking/turn signal
lamp bulb, seeFront Turn Signal
and Parking Lamps on page 5-40.
1. Open the hood. SeeHood
Release on page 5-11for
more information.
2. Remove the two screws from the
top of the front fascia and grille.
They are inboard of the
headlamp assembly.
3. Remove the three screws
retaining the headlamp assembly.
4. Insert a at blade tool through the
opening in the top. Make sure the
tool ts through the opening in the
headlamp bracket lower arm.
5. Push the locking tab toward the
rear of the vehicle with the tool
to lift the headlamp bracket
lower arm.6. Pull back on the front fascia and
then pull the headlamp assembly
out from the vehicle. Another
person might be needed to assist
with this step.
7. Disconnect the electrical
connector from the bulb
assembly.
8. Turn the bulb assembly
counterclockwise to remove it
from the housing.
9. Replace the old bulb with a
new one.
10. Reverse Steps 1 through 8 to
reinstall.
Service and Appearance Care 5-39
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