gas type GMC ACADIA 2013 Owner's Manual

Black plate (28,1)Acadia/Acadia Denali Owner Manual - 2013 - crc2 - 12/11/12
3-28 Seats and Restraints
The front center airbag, if equipped,
seat-mounted side impact airbags,
and roof-rail airbags are intended to
inflate in moderate to severe side
crashes depending on the location
of the impact. A seat-mounted side
impact airbag is intended to inflate
on the side of the vehicle that is
struck. The front center airbag,
if equipped, and both roof-rail
airbags are intended to inflate when
either side of the vehicle is struck.
In addition, the roof-rail airbags and
the front center airbag, if equipped,
are intended to inflate when the
sensing system predicts that the
vehicle is about to roll over on its
side. The roof-rail airbags are also
intended to inflate in a severe frontal
impact.
The front center airbag, if equipped,
is not intended to inflate in frontal
impacts, near frontal impacts,
or rear impacts. Seat-mounted side
impact airbags are not intended to
inflate in frontal impacts, near frontal
impacts, rollovers, rear impacts,
or on the non-struck side of avehicle in a side impact. Roof-rail
airbags are not intended to inflate in
rear impacts.
In any particular crash, no one can
say whether an airbag should have
inflated simply because of the
vehicle damage or the repair costs.
What Makes an Airbag
Inflate?
In a deployment event, the sensing
system sends an electrical signal
triggering a release of gas from the
inflator. Gas from the inflator fills the
airbag causing the bag to break out
of the cover. The inflator, the airbag,
and related hardware are all part of
the airbag module.
For airbag locations, see
Where Are
the Airbags? on page 3‑25.
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 by
distributing the force of the impact
more evenly over the
occupant's body.
Rollover capable roof-rail airbags
are also designed to help contain
the head and chest of occupants in
the outboard seating positions in the
first, second, and third 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. See
When
Should an Airbag Inflate? on
page 3‑27 for more information.

Black plate (39,1)Acadia/Acadia Denali Owner Manual - 2013 - crc2 - 12/11/12
Driving and Operating 9-39
Prohibited Fuels
Gasolines containing oxygenates,
such as ethers and ethanol, as well
as reformulated gasolines are
available in some cities. If these
gasolines comply with the
previously described specification,
then they are acceptable to use.
However, E85 (85% ethanol) and
other fuels containing more than
15% ethanol must be used only in
flex fuel vehicles.
{CAUTION
Do not use fuel containing
methanol. It can corrode metal
parts in the fuel system and also
damage plastic and rubber parts.
That damage would not be
covered under the vehicle
warranty.Some gasolines that are not
reformulated for low emissions can
contain an octane-enhancing
additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). Do not use
gasolines with MMT as they can
reduce spark plug life and affect
emission control system
performance. The malfunction
indicator lamp may turn on. If this
occurs, see your dealer for service.
Gasoline Specifications
At a minimum, gasoline should meet
ASTM specification D 4814. Some
gasolines contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend
against the use of gasolines
containing MMT. See
“Prohibited
Fuels" in Recommended Fuel on
page 9‑38.
California Fuel
Requirements
If the vehicle is certified to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specifications. 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 specifications, but emission
control system performance might
be affected. The malfunction
indicator lamp could turn on and the
vehicle may not pass a smog-check
test. See Malfunction Indicator
Lamp on page 5‑16. If this occurs,
return to your authorized dealer for
diagnosis. If it is determined that the
condition is caused by the type of
fuel used, repairs may not be
covered by the vehicle warranty.