2010 Hyundai Elantra sensor

347
Safety features of your vehicle
Air bag inflation conditions
Front air bag
Front air bags are generally designed to
inflate in moderate to severe frontal colli-
sions within a limited range of angles.
The impact forces measured by the front
impact sensor and SRS control module
determine whether or not to inflate the
front air bags.

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WARNING
Do not hit or allow any objects toimpact the locations where air
bags or sensors are installed.
This may cause unexpected air
bag deployment, which could
result in serious personal injury
or death.
If the installation location or angle of the sensors is altered in
any way, the air bags may deploy
when they should not or they may
not deploy when they should,
causing severe injury or death.
Therefore, do not try to perform
maintenance on or around the air
bag sensors. Have the vehicle
checked and repaired by an
authorized Hyundai dealer.
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Problems may arise if the sensorinstallation angles are changed
due to the deformation of the
front bumper, body or B pillar
where side collision sensors are
installed. Have the vehicle
checked and repaired by an
authorized Hyundai dealer.
Your vehicle has been designed to absorb impact and deploy the
air bag(s) in certain collisions.
Installing aftermarket bumper
guards or replacing a bumper
with non-genuine parts may
adversely affect your vehicle’s
collision and air bag deployment
performance.

Safety features of your vehicle
48
3
Side and/or curtain air bags
Side impact and curtain air bags are gen-
erally designed to inflate in moderate to
severe side collisions. The impact forces
measured by the side impact sensor and
SRS control module determine whether
or not to inflate the side impact air bags. Although the front air bags (driver’s and
front passenger’s air bags) are designed
to inflate only in frontal collisions, they
also may inflate in other types of colli-
sions if the front impact sensors detect a
sufficient impact. Side air bags (side
and/or curtain air bags) are designed to
inflate only in side impact collisions, but
they may inflate in other collisions if the
side impact sensors detect a sufficient
impact.
If the vehicle chassis is impacted by
bumps or objects on unimproved roads
or sidewalks, air bags may deploy. Drive
carefully on unimproved roads or on sur-
faces not designed for vehicle traffic to
prevent unintended air bag deployment.
Air bag non-inflation conditions
In certain low-speed collisions the air
bags may not deploy. The air bags are
designed not to deploy in such cases
because they may not provide occu-
pant protection beyond the protection
of the seat belts in such collisions.

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349
Safety features of your vehicle
Frontal air bags are not designed toinflate in rear collisions, because occu-
pants are moved backward by the
force of the impact. In this case, inflat-
ed air bags would provide additional
occupant protection. Front air bags are not designed to
inflate in side impact collisions,
because frontal air bag deployment
would not provide additional occupant
protection. In an angular collision, the force of
impact may direct the occupants in a
direction where the air bags would not
provide additional occupant protection,
and thus the sensors may not deploy
any air bags.

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351
Safety features of your vehicle
How does the air bag system
operate
Air bags are activated (able to inflate ifnecessary) only when the ignition
switch is turned to ON or START posi-
tion.
Air bags inflate instantly in the event of a serious frontal or side collision (if
equipped with side air bag or curtain
air bag) in order to help protect the
occupants from serious physical injury.
There is no single speed at which the air bags will inflate.
Generally, air bags are designed to
inflate by the severity of a collision and
its direction. These two factors deter-
mine whether the sensors send out an
electronic deployment/inflation signal.
Air bag deployment depends on a number of factors including vehicle
speed, angles of impact and the densi-
ty and stiffness of the vehicles or
objects which your vehicle hits in the
collision. Though, factors are not limit-
ed to those mentioned above.
The front air bags will completely inflate and deflate in an instant.
It is virtually impossible for you to see
the air bags inflate during an accident.
It is much more likely that you will sim-
ply see the deflated air bags hanging
out of their storage compartments after
the collision. In order to help provide protection in a
severe collision, the air bags must
inflate rapidly. The speed of air bag
inflation is a consequence of the
extremely short time in which a collision
occurs and the need to get the air bag
between the occupant and the vehicle
structures before the occupant impacts
those structures. This speed of inflation
reduces the risk of serious or life-
threatening injuries in a severe collision
and is thus a necessary part of air bag
design.
However, air bag inflation can also
cause injuries which normally can
include facial abrasions, bruises and
broken bones, and sometimes more
severe injuries because the inflation
speed also causes the air bags to
expand with a great deal of force.
There are even circumstances under which contact with the steer-
ing wheel air bag can cause fatal
injuries, especially if the occupant
is positioned excessively close to
the steering wheel.
WARNING
To avoid severe personal injuryor death caused by deploying air
bags in a collision, the driver
should sit as far back from the
steering wheel air bag as possi-
ble (at least 10 inches (250 mm)
away). The front passenger
should always move their seat as
far back as possible and sit back
in their seat.
Air bag inflates instantly in the event of collision, and passen-
gers may be injured by the air bag
expansion force if they are not in
proper position.
Air bag inflation may cause injuries which normally include
facial or bodily abrasions,
injuries from broken glasses or
burns by the air bag inflation
gasses.

429
Features of your vehicle
Inside rearview mirror
Day/night rearview mirror
Adjust the rearview mirror to center on
the view through the rear window. Make
this adjustment before you start driving.Make this adjustment before you start
driving and while the day/night lever is in
the day position.
Pull the day/night lever toward you to
reduce glare from the headlights of vehi-
cles behind you during night driving.
Remember that you lose some rearviewclarity in the night position. Electric chromic mirror (ECM)
(if equipped)
The electric rearview mirror automatical-
ly controls the glare from the headlights
of the car behind you in nighttime or low
light driving conditions. The sensor
mounted in the mirror senses the light
level around the vehicle, and through a
chemical reaction, automatically controls
the headlight glare from vehicles behind
you.
When the engine is running, the glare is
automatically controlled by the sensor
mounted in the rearview mirror.
Whenever the shift lever is shifted into
reverse (R), the mirror will automatically
go to the brightest setting in order to
improve the drivers view behind the vehi-
cle.
MIRRORS
WARNING - Rear visibility
Do not place objects in the rear
seat or cargo area which would
interfere with your vision out the
rear window.

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CAUTION
When cleaning the mirror, use apaper towel or similar material dampened with glass cleaner. Donot spray glass cleaner directly onthe mirror as that may cause the liq-uid cleaner to enter the mirror hous- ing.

Features of your vehicle
30
4
To operate the electric rearview mirror
Press the ON/OFF button (1) to turn
the automatic dimming function on.
The mirror indicator light will illuminate.
Press the ON/OFF button to turn the
automatic- dimming function off. The
mirror indicator light will turn off.
The mirror defaults to the ON position whenever the ignition switch is turned
on.Electric chromic mirror with homelinksystem (if equipped)
To operate the electric rearview mirror
Press the I button (1) to turn the auto-
matic- dimming function on. The mirror
indicator light will illuminate.
Press the O button (2) to turn the auto-
matic- dimming function off. The mirror
indicator light will turn off. HomeLink® Wireless Control System
Your new mirror comes with an integrat-
ed HomeLink Universal Transceiver,
which allows you to program the mirror to
activate your garage door(s), estate gate,
home lighting, etc. The mirror actually
learns the codes from your various exist-
ing transmitters.

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Glare detection sensor
Indicator light
Homelink buttons

What to do in an emergency
8
6
Your vehicle has also been equipped
with a TPMS malfunction indicator to
indicate when the system is not
operating properly. The TPMS mal-
function indicator is provided by a
separate telltale, which displays the
symbol "TPMS" when illuminated.
When the malfunction indicator is
illuminated, the system may not be
able to detect or signal low tire pres-
sure as intended. TPMS malfunc-
tions may occur for a variety of rea-
sons, including the installation of
replacement or alternate tires or
wheels on the vehicle that prevent the
TPMS from functioning properly.
Always check the TPMS malfunction
indicator after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or alter-
nate tires and wheels allow the TPMS
to continue to function properly. Low tire pressure tell-
tale
When the tire pressure monitoring
system warning telltale is illuminat-
ed, one or more of your tires is sig-
nificantly under-inflated.
Immediately reduce your speed,
avoid hard cornering and anticipate
increased stopping distances. You
should stop and check your tires as
soon as possible. Inflate the tires to
the proper pressure as indicated on
the vehicle’s placard or tire inflation
pressure label located on the driver’s
side center pillar outer panel. If you
cannot reach a service station or if
the tire cannot hold the newly added
air, replace the low pressure tire with
the compact spare tire. Because the
compact spare tire is not equipped
with a tire pressure sensor, the
TPMS malfunction indicator may go
on and the Low Tire Pressure telltale
still turn on after restarting and about
20 minutes of continuous driving
before you have the low-pressure tire
repaired and replaced on the vehicle.
CAUTION
In winter or cold weather, the low tire pressure telltale may beilluminated if the tire pressurewas adjusted to the recom-mended tire inflation pressurein warm weather. It does notmean your TPMS is malfunction-ing because the decreased tem-perature leads to a proportionallowering of tire pressure.
When you drive your vehiclefrom a warm area to a cold areaor from a cold area to a warmarea, or the outside temperatureis greatly higher or lower, youshould check the tire inflationpressure and adjust the tires tothe recommended tire inflationpressure.

69
What to do in an emergency
TPMS (Tire Pressure
Monitoring System)
malfunction indicator
The TPMS malfunction indicator
comes on and stays on when there is
a problem with the Tire Pressure
Monitoring System. If the system is
able to correctly detect an under-
inflation warning at the same time as
system failure then it will illuminate
both the TPMS malfunction and the
low tire pressure telltale e.g. If Front
Left sensor fails, the TPMS malfunc-
tion indicator comes on, but if Front
Right, Rear Left, or Rear Right tire is
under-inflated, the low tire pressure
telltale may come on with the TPMS
malfunction indicator.
Have the system checked by an
authorized HYUNDAI dealer as soon
as possible to determine the cause
of the problem.
TPMSCAUTION
• The TPMS malfunction indica- tor may be illuminated if thevehicle is moving around elec-tric power supply cable orradio transmitter such aspolice stations, governmentand public offices, broadcast-ing stations, military installa-tions, airports, or transmittingtower, etc. which can interferewith normal operation of theTire Pressure MonitoringSystem (TPMS).
The TPMS malfunction indica- tor may be illuminated if snowchains are used or some sep-arate electronic devices suchas notebook computer, mobilecharger, remote starter or nav-igation etc., are used in thevehicle. This can interfere withnormal operation of the TirePressure Monitoring System(TPMS).
WARNING - Low pressure
damage
Significantly low tire pressure
makes the vehicle unstable and
can contribute to loss of vehicle
control and increased braking
distances.
Continued driving on low pres-
sure tires will cause the tires to
overheat and fail.