Hyundai Santa Fe: Air bag - supplemental restraint system / How does the air bags system operate?
The SRS consists of the following components:
(1) Driver's front air bag module
(2) Passenger's front air bag module
(3) Side air bag modules
(4) Curtain air bag modules
(5) Retractor pre-tensioner
(6) Air bag warning light
(7) SRS control module (SRSCM)/ Rollover sensor
(8) Front impact sensors
(9) Side impact sensors
(10) Side pressure sensors
(11) Seat belt buckle sensor
(12) Emergency fastening device system
(13) Occupant classification system
The SRSCM continually monitors all SRS components while the ignition switch is
ON to determine if a crash impact is severe enough to require air bag deployment
or pre-tensioner seat belt deployment.
SRS warning light
The SRS (Supplemental Restraint System) air bag warning light on the instrument
panel displays the air bag symbol depicted in the illustration. The system checks
the air bag electrical system for malfunctions. The light indicates that there is
a potential problem with your air bag system, which could include your side and/or
curtain air bags used for rollover protection (if equipped with rollover sensor).
WARNING
If your SRS malfunctions, the air bag may not inflate properly during an accident,
increasing the risk of serious injury or death.
If any of the following conditions occur, your SRS is malfunctioning:
- The light does not turn on for approximately three to six seconds
when the Engine Start/Stop button is in the ON position.
- The light stays on after illuminating for approximately three to
six seconds.
- The light comes on while the vehicle is in motion.
- The light blinks when the engine is running.
- Have an authorized HYUNDAI dealer inspect the SRS as soon as possible
if any of these conditions occur.
During a moderate to severe frontal collision, sensors will detect the vehicle’s
rapid deceleration. If the rate of deceleration is high enough, the control unit
will inflate the front air bags, at the time and with the force needed.
The front air bags help protect the driver and front passenger by responding
to frontal impacts in which seat belts alone cannot provide adequate restraint.
When needed, the side air bags help provide protection in the event of a side impact
or rollover by supporting the side upper body area.
- Air bags are activated (able to inflate if necessary) only when the
Engine Start/Stop button is in the ON or START position, and it can be activated
within about 3 minutes after the engine is turned off.
- Air bags inflate in the event of certain frontal or side collisions
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 based upon the severity of a collision and
its direction. These two factors determine whether the sensors produce an electronic
deployment/inflation signal.
- 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 simply see the deflated air bags hanging
out of their storage compartments after the collision.
- In addition to inflating in serious side collisions, vehicles equipped
with a rollover sensor, side and/or curtain air bags will inflate if the sensing
system detects a rollover. When a rollover is detected, curtain air bags will
remain inflated longer to help provide protection from ejection, especially
when used in conjunction with the seat belts. (if equipped with a rollover sensor)
- To help provide protection, the air bags must inflate rapidly. The
speed of air bag inflation is a consequence of extremely short time in which
to inflate 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 lifethreatening injuries and is thus a necessary part of air bag
design. However, the rapid air bag inflation can also cause injuries which can
include facial abrasions, bruises and broken bones because the inflation speed
also causes the air bags to expand with a great deal of force.
Curtain air bags are located along both sides of the roof rails above the front
and rear doors.
They are designed to help protect the heads of the front seat occupants and the
rear outboard seat occupants in certain side impact collisions...
After a frontal or side air bag inflates, it will deflate very quickly. Air bag
inflation will not prevent the driver from seeing out of the windshield or being
able to steer...
Other information:
Replacement
•
Put on gloves to prevent hand injuries.
•
When removing with a flat-tip screwdriver or remover, wrap protective
tape around the tools to prevent damage to components...
You will find many safety precautions and recommendations throughout this section,
and throughout this manual. The safety precautions in this section are among the
most important.
Always wear your seat belt
A seat belt is your best protection in all types of accidents...
Categories
Electric Power Steering (EPS) warning light
This warning light illuminates:
When you set the ignition switch or the Engine Start/Stop button to
the ON position.
- The electric power steering warning light illuminates for about 3 seconds
and then goes off.
Whenever there is a malfunction with the electric power steering.
If this occurs, have the vehicle inspected by an authorized HYUNDAI dealer.
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