2009 CADILLAC XLR gas type

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 seat-mounted side impact airbags,
deployment is determined by the location and severity
of the side impact.
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.
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 airbags distribute the force of the impact
more evenly over the occupant’s upper body.
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 1-42for more information.
Airbags should never be regarded as anything more
than a supplement to safety belts.
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Mexican Restaurant, Mexican Food:Displays
Mexican restaurant POI icons.
Seafood Restaurant, Seafood:Displays Seafood
restaurant POI icons.
Other Restaurant, Other Food:Displays other types
of restaurant POI icons.
Shopping, Shopping Mall:Displays mall POI icons.
Grocery Store:Displays grocery store POI icons.
Gas Station, Gas:Displays gas station POI icons.
Parking Garage:Displays parking garage POI icons.
Parking Lot:Displays parking lot POI icons.
Rental Car Agency:Displays rental car POI icons.
Automobile Club, Triple A:Displays auto club
POI icons.
Auto Service And Maintenance, Auto Service,
Maintenance:Displays auto service POI icons.
Hotel:Displays hotel POI icons.
Golf Course:Displays golf course POI icons.Ski Resort, Skiing:Displays ski resort POI icons.
Amusement Park:Displays amusement park
POI icons.
Sport Complex, Stadium:Displays sports complex
POI icons.
Casino:Displays casino POI icons.
Marina:Displays marina POI icons.
Tourist Attraction:Displays tourist attraction POI icons.
Winery:Displays winery POI icons.
City Hall:Displays city hall POI icons.
Police Station:Displays police station POI icons.
Library:Displays library POI icons.
Hospital:Displays hospital POI icons.
Park & Recreation, Parks & Recreation:Displays
parks and recreation POI icons.
Civic Center, Community Center:Displays community
center POI icons.
4-79

If the vehicle has the 4.4L V8 engine (VIN Code D),
use premium unleaded gasoline with a posted octane
rating of 91 or higher. For best performance, use
premium unleaded gasoline with a posted octane
rating of 93. In an emergency, you can use regular
unleaded gasoline with an octane rating of 87 or higher.
If 87 octane fuel is used, do not perform any aggressive
driving maneuvers such as wide open throttle
applications. You might also hear audible spark knock
during acceleration. Rell the tank with premium fuel as
soon as possible to avoid damaging the engine. If you are
using gasoline rated at 91 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 6-6
for 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. SeeMalfunction Indicator Lamp on page 3-50.
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
6-6

An alternate fuel door
release is located inside
the trunk behind a panel on
the driver side of the
vehicle. Pull the handle to
release the fuel door.
To remove the fuel cap, turn it slowly counterclockwise.
The fuel cap has a spring in it; if the cap is released
too soon, it will spring back to the right.
While refueling, hang the tethered fuel cap from the
hook on the fuel door.
{CAUTION:
Fuel can spray out on you if you open the fuel cap
too quickly. If you spill fuel and then something
ignites it, you could be badly burned. This spray
can happen if the tank is nearly full, and is more
likely in hot weather. Open the fuel cap slowly and
wait for any hiss noise to stop. Then unscrew the
cap all the way.Be careful not to spill fuel. Do not top off or overll the
tank and wait a few seconds after you have nished
pumping before removing the nozzle. Clean fuel from
painted surfaces as soon as possible. SeeWashing
Your Vehicle on page 6-77.
When replacing the fuel cap, turn it clockwise until it
clicks. Make sure the cap is fully installed. The diagnostic
system can determine if the fuel cap has been left off or
improperly installed. This would allow fuel to evaporate
into the atmosphere. SeeMalfunction Indicator Lamp on
page 3-50.
The CHECK GAS CAP message in the Driver Information
Center (DIC) will be displayed if the fuel cap is not
properly installed.
{CAUTION:
If a re starts while you are refueling, do not
remove the nozzle. Shut off the ow of fuel by
shutting off the pump or by notifying the station
attendant. Leave the area immediately.
Notice:If you need a new fuel cap, be sure to get the
right type. Your dealer/retailer can get one for you. If
you get the wrong type, it may not t properly. This
may cause the malfunction indicator lamp to light
and may damage the fuel tank and emissions system.
SeeMalfunction Indicator Lamp on page 3-50.
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