If your vehicle has side impact airbags, it has electronic
side sensors. The side impact airbags are designed
to in ate in moderate to severe side crashes. A side
impact airbag will in ate if the crash severity is above
the system’s designed “threshold level”. The threshold
level can vary with speci c vehicle design. Side impact
airbags are not designed to in ate in frontal or
near-frontal impacts, rollovers or rear impacts, because
in ation would not likely help the occupant. A side
impact airbag will only deploy on the side of the vehicle
that is struck.
Your vehicle has seat position sensors which enable the
sensing system to monitor the position of the driver’s
seat and the right front passenger’s seat. Seat position
sensors provide information that is used to determine
if the airbags should deploy at a reduced level or
at full deployment.
In any particular crash, no one can say whether an
airbag should have in ated simply because of the
damage to a vehicle or because of what the repair costs
were. For frontal airbags, in ation is determined by
the angle of the impact and how quickly the vehicle
slows down in frontal or near-frontal impacts. For side
impact airbags, in ation is determined by the location
and severity of the impact.What Makes an Airbag In ate?
In an impact of sufficient severity, the airbag sensing
system detects that the vehicle is in a crash. For both
frontal and side impact airbags, the sensing system
triggers a release of gas from the in ator, which in ates
the airbag. The in ator, airbag, and related hardware
are all part of the airbag modules inside the steering
wheel and in the instrument panel in front of the
right front passenger. For vehicles with side impact
airbags, the airbag modules are located in the ceiling of
the vehicle, near the side windows.
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. The airbag supplements the protection
provided by safety belts. Airbags distribute the force of
the impact more evenly over the occupant’s upper
body, stopping the occupant more gradually. But the
frontal airbags would not help you in many types
of collisions, including rollovers, rear impacts, and many
side impacts, primarily because an occupant’s motion
is not toward the airbag. Side impact airbags would not
help you in many types of collisions, including frontal
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California Fuel
If your vehicle is certi ed to meet California Emission
Standards (see the underhood emission control
label), it is designed to operate on fuels that meet
California speci cations. If this fuel is not available in
states adopting California emissions standards,
your vehicle will operate satisfactorily on fuels meeting
federal speci cations, but emission control system
performance may be affected. The malfunction indicator
lamp may turn on and your vehicle may fail a
smog-check test. SeeMalfunction Indicator Lamp on
page 3-30. If this occurs, return to your authorized
GM dealer for diagnosis. If it is determined that
the condition is caused by the type of fuel used,
repairs may not be covered by your warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work
properly. In most cases, you should not have to add
anything to your fuel. However, some gasolines contain
only the minimum amount of additive required to
meet U.S. Environmental Protection Agency regulations.
General Motors recommends that you buy gasolines
that are advertised to help keep fuel injectors and intake
valves clean. If your vehicle experiences problems
due to dirty injectors or valves, try a different brand of
gasoline. Also, your GM dealer has additives that
will help correct and prevent most deposit-related
problems.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines may be available in
your area to contribute to clean air. General Motors
recommends that you use these gasolines, particularly if
they comply with the speci cations described earlier.
5-6
Bulb Replacement
For the proper types of bulbs to use, seeReplacement
Bulbs on page 5-51.
For any bulb changing procedure not listed in this
section, contact your dealer’s service department.
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
Composite Headlamp System
A. Low-Beam Headlamp
B. High-Beam Headlamp
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