2009 Hyundai Elantra sensor

Safety system of your vehicle
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3
Just before impact, drivers often brake
heavily. Such heavy braking lowers the
front portion of the vehicle causing it to
“ride” under a vehicle with a higher
ground clearance. Air bags may not
inflate in this "under-ride" situation
because deceleration forces that are
detected by sensors may be signifi-
cantly replaced by such “under-ride”
collisions. Air bags may not inflate in rollover acci-
dents because air bag deployment
would not provide protection to the
occupants.
However, side and/or curtain air bags may inflate when the vehicle is rolled
over by a side impact collision, if the
vehicle is equipped with side air bags
and curtain air bags. Air bags may not inflate if the vehicle
collides with objects such as utility
poles or trees, where the point of
impact is concentrated to one area and
the full force of the impact is not deliv-
ered to the sensors.
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Safety system of your vehicle
How does the air bag system operate
Air bag only operates when the ignitionswitch is turned to ON or START posi- tion.
Air bags inflate instantly in the event of serious frontal or side collision (if
equipped with side air bag or curtainair 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 vehiclespeed, 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 afterthe collision. In order to help provide protection in a
severe collision, the air bags must
inflate rapidly. The speed of air baginflation is a consequence of the
extremely short time in which a collisionoccurs 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 bagdesign.
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 inflationspeed 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 tothe steering wheel.
WARNING
To avoid severe personal injury or 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 250 mm (10 inches)
away). The front passenger
should always move their seat as
far back as possible and sit backin their seat.
Air bag inflates instantly in an event of collision, passengers
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 by the broken glasses or
burns by the explosives.

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Features of your vehicle
Impact sensing door unlock sys- tem (if equipped)
All doors will be automatically unlocked
when the impact is delivered to impact
sensors while the ignition switch ON.
However, the doors may not be unlocked
when there are some problems of
mechanical door lock system or battery.
Speed sensing door lock system (if equipped)
When the speed of the vehicle keeps
above 40 km/h for 1 second, it will auto-
matically lock all doors. For activation of
this feature, contact an authorised
Hyundai dealar.Child-protector rear door lock
The child safety lock is provided to help
prevent children from accidentally open-
ing the rear doors from inside the vehicle.
The rear door safety locks should be
used whenever children are in the vehi-
cle.
1. Open the rear door.
2. Push the child safety lock located on
the rear edge of the door to the “Lock”
position. When the child safety lock is
in the “Lock ( )” position, rear door
will not open even though the inner
door handle is pulled inside the vehi-
cle.
3. Close the rear door. To open the rear door, pull the outsidedoor handle (1).
Even though the doors may be unlocked,
the rear door will not open by pulling theinner door handle (2) until rear door child
safety lock is unlocked ( ).
WARNING
- Rear door
locks
If children accidentally open the
rear doors while the vehicle is in
motion, they could fall out and be
severely injured or killed. To pre-
vent children from opening the rear
doors from the inside, the rear door
safety locks should be used when-
ever children are in the vehicle.
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429
Features of your vehicle
Inside rearview mirror
Day/night rearview mirror
Adjust the rearview mirror to centre 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)
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 sensormounted in the mirror senses the light
level around the vehicle, and through achemical 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 a paper towel or similar material dampened with glass cleaner. Do
not spray glass cleaner directly onthe mirror as that may cause the liq-uid cleaner to enter the mirror hous-ing.

Maintenance
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7
Replace the filter according to the Scheduled Maintenance Section.
If the vehicle is operated in extremely
dusty or sandy areas, replace the ele-
ment more often than the usual recom-mended intervals. (Refer to“Maintenance under severe usage condi-
tions” in this section.)
CAUTION
Do not drive with the air cleaner removed; this will result in exces-sive engine wear.
When removing the air cleaner fil- ter, be careful that dust or dirt
does not enter the air intake, ordamage may result.
Use a Hyundai genuine part. Use of nongenuine part could damagethe air flow sensor or turbo charg-
er.

Maintenance
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7
Engine compartment
Description Fuse rating Protected component
ALTERNATOR 150A Alternator, Fusible link box(D4FB)
EPS 80A EPS control module
ABS.2 20A ESP control module, ABS control module, Multi purpose check connector
ABS.1 40A ESP control module, ABS control module, Multi purpose check connector
B+.1 50A Instrument panel junction box
Fusible link RR HTD 40A Instrument panel junction box BLOWER 40A Blower relay
C/FAN 40A Condenser fan #1, 2 relay
B+.2 50A Instrument panel junction box
IGN.2 40A Ignition switch, Start relay
IGN.1 30A Ignition switch
ECU 30A Main relay, Powertrain control module(G4GC)
SPARE.1 20A (Spare)
FR FOG 15A Front fog lamp relay
A/CON 10A A/C relay
HAZARD 15A Hazard switch, Hazard relay
F/PUMP 15A Fuel pump relay
ECU.1 10A ECM(G4FC), PCM(G4FC), TCM(D4FB)
Fuse ECU.3 10A ECM(D4FB) ECU.4 20A ECM(D4FB)
INJ 15A A/C relay, Fuel pump relay, Injector #1,2,3,4(G4FC/G4GC), PCM(G4FC/G4GC), Idle speed actuator(G4FC/G4GC), Immobiliser module(D4FB) etc.
SNSR.2 10A Pulse generator 'A', 'B, 'TCM(D4FB), Stop lamp switch(G4FC/G4GC), Vehicle speed sensor etc.
HORN 15A Horn relay

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Maintenance
Description Fuse rating Protected componentABS 10A ESP control module, ABS control module, Multi purpose check connector
ECU.2 10A Ignition coil #1,2,3,4(G4FC), PCM(G4GC)
B/UP 10A Back up lamp switch, Transaxle range switch, Cruise control module
H/LP LO RH 10A Head lamp(RH), Head lamp leveling actuator(RH)
Fuse H/LP LO LH 10A Head lamp(LH), Head lamp leveling actuator(LH), Head lamp leveling switch H/LP HI 20A Head lamp Hi relay
SNSR.1 10A Immobiliser module(G4FC/G4GC), Stop lamp switch(D4FB), Lambda sensor(D4FB) etc.
SPARE 10A (Spare)
SPARE 15A (Spare)
SPARE 20A (Spare)