2008 Hyundai Sonata sensors

1
FEATURES OF YOUR HYUNDAI
37
B240A01NF
The SRS uses sensors to gather information
about the driver's and front passenger's seat
position, the driver's and front passenger's seat
belt usage and impact severity.
The driver's and front passenger's seat track
position sensors, which are installed on the seat
track, determine if the seats are fore or aft of a
reference position. The seat belt buckle sen-
sors determine if the driver and front passenger's
seat belts are fastened. These sensors provide
the ability to control the SRS deployment based
on how close the driver's seat is to the steering
wheel, how close the passenger's seat is to the
instrument panel, whether or not the seat belts
are fastened, and how severe the impact is.
The advanced SRS offers the ability to control
the airbag inflation with two levels. A first stage
level is provided for moderate-severity impacts.
A second stage level is provided for more
severe impacts.
According to the impact severity, seating posi-
tion and seat belt usage, the SRSCM(SRS
Control Module) controls the airbag inflation.
Failure to properly wear seat belts can increase
the risk or severity of injury in an accident.
CAUTION:
If a seat track position sensor or an occu-
pant classification system is not working
properly, the SRS airbag warning light on
the instrument panel will illuminate be-
cause the SRS airbag warning light is con-
nected with the seat track position sensor
and the occupant classification system. If
the SRS airbag warning light does not illu-
minate when the ignition key is turned to
the "ON" position, remains illuminated af-
ter approximately 6 seconds when the igni-
tion key is turned to the "ON" position, or
if it illuminates while the vehicle is being
driven, have an authorized Hyundai dealer
inspect the advanced SRS airbag system as
soon as possible.
!
AIR
BAG
Additionally, your Hyundai is equipped with an
occupant classification system in the front
passenger's seat. The occupant classification
system detects the presence of a passenger in
the front passenger's seat and will turn off the
front passenger's airbag under certain condi-
tions. For more detail, see "Occupant Classifi-
cation System" later in this section.
B240A03NF-AATDriver's and Passenger's Front AirbagYour Hyundai is equipped with an advanced
Supplemental Restraint (Airbag) System. The
indications of the system's presence are the
letters "SRS AIRBAG" embossed on the airbag
pad cover in the steering wheel and the
passenger's side front panel pad above the
glove box.
The Hyundai SRS consists of airbags installed
under the pad covers in the center of the
steering wheel and the passenger's side front
panel above the glove box. The purpose of the
SRS is to provide the vehicle's driver and/or the
front passenger with additional protection than
that offered by the seat belt system alone in
case of a frontal impact of sufficient severity.Driver's Front Airbag

1FEATURES OF YOUR HYUNDAI40
11.Side Impact Sensor
12.Retractor Pre-tensioner Assemblies
13.Side Impact Airbag Module
14.Curtain Airbag Module
The SRSCM continually monitors all elements
while the ignition is "ON" to determine if a frontal
or near-frontal impact is severe enough to
require airbag deployment or pre-tensioner seat
belt deployment.
The SRS "AIRBAG" warning light on the instru-
ment panel will illuminate for about 6 seconds
after the ignition key is turned to the "ON"
position or after the engine is started, after which
the "AIRBAG" warning light should go out.
B240B01L
!
WARNING:
o Sitting improperly or out of position can
result in serious or fatal injury in a crash.
All occupants should sit upright with
the seat back in an upright position,
centered on the seat cushion with their
seat belt on, legs comfortably extended
and their feet on the floor until the ve-
hicle is parked and the ignition key is
removed.
o The SRS airbag system must deploy very
rapidly to provide protection in a crash.
If an occupant is out of position because
of not wearing a seat belt, the airbag may
forcefully contact the occupant causing
serious or fatal injuries.
B240B03NF-AATSRS Components and FunctionsThe SRS consists of the following components:
1. Front Impact Sensor
2. "PASSENGER AIR BAG OFF" Indicator
(Front passenger's seat only)
3. SRS "AIRBAG" warning light
4. Knee Bolster
5. Passenger's Airbag Module
6. Driver's Airbag Module
7. SRS Control Module (SRSCM)
8. Occupant Classification System
(Front passenger's seat only)
9. Driver's and Front Passenger's Seat Track
Position Sensors
10.Driver's and Front Passenger's Seat Belt
Buckle Sensors/Buckle Pre-tensioner As-
semblies
B240B01NF-A

1
FEATURES OF YOUR HYUNDAI
81
Automatic-Dimming Night Vision
Safety™ (NVS
®) Mirror
The NVS
® Mirror in your vehicle is the most
advanced way to reduce annoying glare in the
rearview mirror during any driving situation. For
more information regarding NVS
® mirrors and
other applications, please refer to the Gentex
website:
www.gentex.com.
CAUTION:
The NVS
® Mirror automatically reduces glare
during driving conditions based upon light
levels monitored in front of the vehicle and
from the rear of the vehicle. These light
sensors are visible through openings in the
front and rear of the mirror case. Any object
that would obstruct either light sensor will
degrade the automatic dimming control
feature.
!
Automatic-Dimming Function
Your mirror will automatically dim upon detect-
ing glare from the vehicles traveling behind you.
The auto-dimming function can be controlled by
the Dimming ON/OFF Button:
1. Pressing the
button turns the auto-dim-
ming function OFF which is indicated by the
green Status Indicator LED turning off.
2. Pressing the button again turns the auto-
dimming function ON which is indicated by
the green Status Indicator LED turning on.
NOTE:The mirror defaults to the "ON" position
each time the vehicle is started.Compass Function
The Compass can be turned ON and OFF and
will remember the last state when the ignition is
cycled. To turn the display feature ON/OFF:
1. Press and release the button to turn the
display feature OFF.
2. Press and release the button again to
turn the display back ON.
Additional options can be set with press and hold
sequences of the button and are detailed
below.
There is a difference between magnetic north
and true north. The compass in the mirror can
compensate for this difference when it knows
the Magnetic Zone in which it is operating. This
is set either by the dealer or by the user. The
operating Zone Numbers for North America are
shown in the figure on the following section.
Z-Nav™ Compass DisplayThe NVS™ Mirror in your vehicle is also
equipped with a Z-Nav™ Compass that shows
the vehicle Compass heading in the Display
Window using the 8 basic cardinal headings (N,
NE, E, SE, etc.).

38WHAT TO DO IN AN EMERGENCY
!
!!
Always be sure the tire is cold before
inflating to the recommended pressure.
A cold tire means the vehicle has been
sitting for 3 hours and driven for less
than 1 mile in that 3 hour period.
NOTE:
o Do not use any tire sealant if your
vehicle is equipped with a Tire
Pressure Monitoring System. The
liquid sealant can damage the tire
pressure sensors.
o In order for the system to correctly
monitor tires for under-inflation,
there should be a total of exactly 4
sensors fitted to each of the four
driven wheel positions. There
should be no other sensors in the
vehicle include spare tire since
this could cause the system to
monitor the wrong sensors.WARNING - TPMS
o The TPMS cannot alert you to se-
vere and sudden tire damage
caused by external factors.
o If you feel any vehicle instability,
immediately take your foot off the
accelerator and slowly move to a
safe position off the road.
WARNING:
Tampering with, modifying, or dis-
abling the Tire Pressure Monitoring
System (TPMS) components may
interfere with the system's ability to
warn the driver of low tire pressure
conditions and/or TPMS malfunc-
tions. Tampering with, modifying,
or disabling the Tire Pressure Moni-
toring System (TPMS) components
may void the warranty for that por-
tion of the vehicle.This device complies with Part 15 of
the FCC rules.
Operation is subject to the following two
conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any inter-
ference received, including interfer-
ence that may cause undesired op-
eration.
WARNING:
Changes or modifications not ex-
pressly approved by the party re-
sponsible for compliance could void
the user’s authority to operate the
equipment.