ECU Hyundai Sonata

1FEATURES OF YOUR HYUNDAI2
!
B010A01NF-A
FUEL RECOMMENDATIONS
CAUTION:
Your Hyundai's New Vehicle Limited War-
ranty may not cover damage to the fuel
system and any performance problems that
are caused by the use of fuels containing
methanol or fuels containing MTBE (Methyl
Tertiary Butyl Ether) over 15.0% vol. (Oxy-
gen Content 2.7% weight.)
B010B01A-AATWhat About Gasohol?Gasohol (a mixture of 90% unleaded gasoline
and 10% ethanol or grain alcohol) may be used
in your Hyundai. However, if your engine devel-
ops driveability problems, the use of 100%
unleaded gasoline is recommended. Fuels with
unspecified quantities of alcohol, or alcohols
other than ethanol, should not be used.
B010A02NF-AATUse Unleaded GasolineUnleaded gasoline with a Pump Octane
Rating of 87 (Research Octane Number 91)
or higher must be used in your Hyundai.
B010C01A-AATUse of MTBEHyundai recommends that fuels containing
MTBE (Methyl Tertiary Butyl Ether) over 15.0%
vol. (Oxygen Content 2.7% weight) should not
be used in your Hyundai.
Fuel containing MTBE over 15.0% vol. (Oxygen
Content 2.7% weight) may reduce vehicle per-
formance and produce vapor lock or hard
starting.
B010D01A-AATDo Not Use MethanolFuels containing methanol (wood alcohol) should
not be used in your Hyundai. This type of fuel
can reduce vehicle performance and damage
components of the fuel system.
!
UNLEADED
FUEL ONLY
WARNING:
o Do not "top off" after the nozzle auto-
matically shuts off when refueling.
o Tighten the cap until it clicks, otherwise
the "
" light will illuminate.
o Always check that the fuel cap is in-
stalled securely to prevent fuel spillage
in the event of an accident.

1FEATURES OF YOUR HYUNDAI4
DOOR LOCKS!
B040A01A-AAT B030C01JM-AAT
ILLUMINATED IGNITION SWITCHWhenever either front door is opened, the igni-
tion switch will be illuminated for your conve-
nience, provided the ignition switch is not in the
"ON" position.
The light will go off approximately 10 seconds
after closing the door or when the ignition switch
is turned on.
WARNING:
o Unlocked doors can be dangerous. Be-
fore you drive away (especially if there
are children in the car), be sure that all the
doors are securely closed and locked so
that the doors cannot be opened from
the inside. This helps ensure that the
doors will not be opened accidentally.
Also, when combined with the proper
use of seat belts, locking the doors helps
keep occupants from being ejected from
the car in case of an accident.
o Before opening the door, always look for
and avoid oncoming traffic.
B030B01NF-GATRecord Your Key NumberA code number is attached on the number tag
that came with the keys to your Hyundai. This
key number tag should not be left with the keys
but kept in a safe place, not in the vehicle. The
key number should also be recorded in a place
where it can be found in an emergency.
If you need additional keys, or if you should lose
your keys, your authorized Hyundai dealer can
make new keys if you can supply the key
number.
B030B01NF
B030C01E

1FEATURES OF YOUR HYUNDAI14
!
B080B03A-AATAdjusting Seat Forward and RearwardTo move the seat toward the front or rear, pull
the lock release lever upward. This will release
the seat on its track so you can move it forward
or rearward to the desired position. When you
find the position you want, release the lever and
slide the seat forward or rearward on its track
until it locks into the desired position and cannot
be moved further.
WARNING:
After adjusting the seat, always check that
it is securely locked into place by attempt-
ing to move the seat forward or reverse
without using the lock release lever. Sud-
den or unexpected movement of the driver's
seat could cause you to lose control of the
vehicle resulting in an accident.
SEATSB080A02A-AATADJUSTABLE FRONT SEATS
!
WARNING:
o Never adjust the driver’s seat while the
vehicle is moving. Any sudden or unex-
pected movement of the seat could cause
you to lose control of the vehicle result-
ing in an accident. Only adjust the
driver’s seat when the vehicle is station-
ary.
o Do not sit or lean unnecessarily close to
the airbag. Position the seat so that you
can sit as far back as possible from the
airbag and still comfortably reach all
controls.
HNF2032

1FEATURES OF YOUR HYUNDAI22
WARNING:
Riding with a reclined seatback increases
your chance of serious or fatal injuries in
the event of a collision or sudden stop. The
protection of your restraint system (seat
belts and airbags) is greatly reduced by
reclining your seat. Seat belts must be snug
against your hips and chest to work prop-
erly. The more the seatback is reclined, the
greater the chance that an occupant's hips
will slide under the lap belt causing serious
internal injuries or the occupant's neck
could strike the shoulder belt. Drivers and
passengers should always sit well back in
their seats, properly belted (see page 1-24),
and with the seatbacks upright.
!
B150E01A-AATInjured PersonA seat belt should be used when an injured
person is being transported. When this is nec-
essary, you should consult a physician for
recommendations.B150F01A-AATOne Person Per BeltTwo people (including children) should never
attempt to use a single seat belt. This could
increase the severity of injuries in case of an
accident.B150G02A-AATDo Not Lie DownTo reduce the chance of injuries in the event of
an accident and to achieve maximum effective-
ness of the restraint system, all passengers
should be sitting up and the front seats should
be in an upright position when the car is moving.
A seat belt cannot provide proper protection if
the person is lying down in the rear seat or if the
front seat is in a reclined position.
B150C02A-AATLarger ChildrenChildren who are too large for child restraint
systems should always occupy the rear seat
and use the available lap/shoulder belts. The lap
portion should be fastened snug on the hips and
as low as possible. Check belt fit periodically. A
child's squirming could put the belt out of posi-
tion. Children are afforded the most safety in the
event of an accident when they are restrained
by a proper restraint system in the rear seat. If
a larger child (over age 13) must be seated in
the front seat, the child should be securely
restrained by the available lap/shoulder belt and
the seat should be placed in the rearmost
position. Children under the age of 13 should be
restrained securely in the rear seat. NEVER
place a child under the age of 13 in the front seat.
NEVER place a rear facing child seat in the front
seat of a vehicle.B150D01A-AATPregnant WomenThe use of a seat belt is recommended for
pregnant women to lessen the chance of injury
in an accident. When a seat belt is used, the lap
belt portion should be placed as low and snugly
as possible on the hips, not across the abdo-
men. For specific recommendations, consult a
physician.

1
FEATURES OF YOUR HYUNDAI
25
B190A02NF-AATSEAT BELTS-Front Passenger and Rear
Seat 3-Point System with Combination
Locking Retractor
To Fasten Your BeltCombination retractor type seat belts are in-
stalled in the rear seat positions to help accom-
modate the installation of child restraint systems.
Although a combination retractor is also installed
in the front passenger seat position, Hyundai
strongly recommends that children always be
seated in the rear seat. NEVER place any infant
restraint system in the front seat of the vehicle.
This type of seat belt combines the features of
both an emergency locking retractor seat belt
and an automatic locking retractor seat belt. To
fasten your seat belt, pull it out of the retractor
and insert the metal tab into the buckle. There
will be an audible "click" when the tab locks into
the buckle. When not securing a child restraint,
the seat belt operates in the same way as the
driver's seat belt (Emergency Locking Retrac-
tor Type). It automatically adjusts to the proper
length only after the lap belt portion of the seat
belt is adjusted manually so that it fits snugly
around your hips. When the seat belt is fully
extended from the retractor to allow the instal-
lation of a child restraint system, the seat belt
operation changes to allow the belt to retract, but
not to extend (Automatic Locking Retractor
Type). See page 1-32.
NOTE:o Although the combination retractor pro-
vides the same level of protection for
seated passengers in either emergency
or automatic locking modes, it is recom-
mended that seated passengers use the
emergency locking feature for improved
convenience. The automatic locking
function is intended to facilitate child
restraint installation. To convert from
the automatic locking feature to the
emergency locking operation mode, al-
low the unbuckled seat belt to fully re-
tract.
o The front passenger's seat belt warning
light on the center fascia panel blinks
until the front passenger's seat belt is
fastened to remind the front passenger
to fasten the front passenger's seat belt,
when the ignition key is turned from the
"OFF" position to "the "ON" or "START"
position.
WARNING:
o For maximum restraint system protec-
tion, the seat belts must always be used
whenever the car is moving.
o Seat belts are most effective when
seatbacks are in the upright position.
o Children age 12 and younger must al-
ways be properly restrained in the rear
seat. Never allow children to ride in the
front passenger seat. If a child over 13
must be seated in the front seat, he/she
must be properly belted and the seat
should be moved as far back as possible.
o Never wear the shoulder belt under your
arm or behind your back. An improperly
positioned shoulder belt can cause se-
rious injuries in a crash. The shoulder
belt should be positioned midway over
your shoulder across your collarbone.
o Avoid wearing twisted seat belts. A
twisted belt can't do its job as well. In a
collision, it could even cut into you. Be
sure the belt webbing is straight and not
twisted.
o Be careful not to damage the belt web-
bing or hardware. If the belt webbing or
hardware is damaged, replace it.
!

1FEATURES OF YOUR HYUNDAI28
B220C02A-GATTo Release the Seat BeltWhen you want to release the seat belt, press
the button in the locking buckle.
!
WARNING:
When fastening the outboard seat belts or
the center seat belt, make sure they are
inserted into the correct buckles to obtain
maximum protection from the seat belt
system and assure proper operation.
CHILD RESTRAINT SYSTEMB230A04Y-AATChildren riding in the car should sit in the rear
seat and must always be properly restrained to
minimize the risk of injury in an accident, sudden
stop or sudden maneuver. According to acci-
dent statistics provided by the National High-
way Traffic Safety Administration (NHTSA),
children are safer when properly restrained in
the rear seats than in the front seat. Larger
children not in a child restraint should use one
of the seat belts provided.
All 50 states have child restraint laws. You
should be aware of the specific requirements in
your state. Child and/or infant safety seats must
be properly placed and installed in the rear seat.
You must use a commercially available child
restraint system that meets the requirements of
the Federal Motor Vehicle Safety Standards
(FMVSS).
Children could be injured or killed in a crash if
their restraints are not properly secured. For
small children and babies, a child seat or infant
seat must be used. Before buying a particular
child restraint system, make sure it fits your car
seat and seat belts, and fits your child. Follow
all the instructions provided by the manufac-
turer when installing the child restraint system.
B220C02NF-A
!
o Always lock metal tab (a) into buckle (b)
immediately after returning the rear
seatbacks to an upright position. This
portion of the rear center seat belt should
only be unbuckled when the rear seatback
is folded down.
B220A03NF-A
WARNING:
o To disconnect the metal tab (a) from the
buckle (b), insert a narrow-ended tool
into the groove located on the buckle
(b).

1
FEATURES OF YOUR HYUNDAI
29
!
WARNING:
o A child restraint system must be placed
in the rear seat. Never install a child or
infant seat on the front passenger's seat.
Should an accident occur and cause the
passenger side airbag to deploy, it could
severely injure or kill an infant or child
seated in an infant or child seat. Thus
only use a child restraint in the rear seat
of your vehicle.
o A safety belt or child restraint system
can become very hot if it is left in a closed
vehicle on a sunny day, even if the out-
side temperature does not feel hot. Be
sure to check the seat cover and buckles
before placing a child there.
o When the child restraint system is not in
use, store it in the trunk or fasten it with
a safety belt so that it will not be thrown
forward in the case of a sudden stop or
an accident.
o Children may be seriously injured or
killed by an inflating airbag. All children,
even those too large for child restraints,
must ride in the rear seat.
!
WARNING:
To reduce the chance or serious or fatal
injuries:
o Children of all ages are safer when re-
strained in the rear seat. A child riding in
the front passenger seat can be force-
fully struck by an inflating airbag result-
ing in serious or fatal injuries.
o Always follow the instructions for in-
stallation and use of the child restraint
maker.
o Always make sure the child seat is se-
cured properly in the car and your child
is securely restrained in the child seat.
o Never hold a child in your arms or lap
when riding in a vehicle. The violent
forces created during a crash will tear the
child from your arms and throw the child
against the car’s interior.
o Never put a seat belt over yourself and a
child. During a crash, the belt could
press deep into the child causing seri-
ous internal injuries.
o Never leave children unattended in a
vehicle – not even for a short time. The
car can heat up very quickly, resulting in
serious injuries to children inside. Even
very young children may inadvertently
cause the vehicle to move, entangle them-
selves in the windows, or lock them-
selves or others inside the vehicle.o Never allow two children, or any two
persons, to use the same seat belt.
o Children often squirm and reposition
themselves improperly. Never let a child
ride with the shoulder belt under their
arm or behind their back. Always prop-
erly position and secure children in rear
seat.
o Never allow a child to stand-up or kneel
on the seat or floorboard of a moving
vehicle. During a collision or sudden
stop, the child can be violently thrown
against the vehicles interior, resulting in
serious injury.
o Never use an infant carrier or a child
safety seat that "hooks" over a seatback,
it may not provide adequate security in
an accident.
o Seat belts can become very hot, espe-
cially when the car is parked in direct
sunlight. Always check seat belt buck-
les before fastening them over a child.
o Always store or secure a child seat, even
when it is not in use. During a collision
or sudden stop, the child seat could be
thrown inside the vehicle.
!
WARNING:

1
FEATURES OF YOUR HYUNDAI
31
!For vehicles with adjustable headrests, route
the tether strap under the headrest and
between the headrest posts, otherwise route
the tether strap over the top of the seatback.
3. Connect the tether strap hook to the child
restraint hook holder and tighten to secure
the seat.
WARNING:
o A child can be seriously injured or killed
in a collision if the child restraint is not
properly anchored. Always follow the
child seat manufacturer’s instructions
for installation and use.
o Never mount more than one child re-
straint to a single tether or to a single
lower anchorage point. The increased
load caused by multiple seats may cause
the tethers or anchorage points to break,
causing serious injury or death.
B230D05E-AATSecuring the Child Restraint Seat with
the "ISOFIX" systemSome child seat manufacturers make safety
seats that are labeled as ISOFIX or ISOFIX-
compatible child seats. These seats include two
rigid or webbing mounted attachments that
connect to two ISOFIX anchors at specific
seating positions in your vehicle. This type of
child seat eliminates the need to use seat belts
to attach the child seat for forward-facing child
seats.
ISOFIX anchors have been provided in your
vehicle. The ISOFIX anchors are located in the
left and right outboard rear seating positions.
Their locations are shown in the illustration.
There is no ISOFIX anchor provided for the
center rear seating position.
B230D01NF
!
WARNING:
o A child can be seriously injured or killed
in a collision if the child restraint is not
properly anchored. Always follow the
child seat manufacturer’s instructions
for installation and use.
o Never install a child restraint using the
ISOFIX anchors at the center position of
the rear seat. In a crash, the ISOFIX
anchors may break if a car seat is improp-
erly placed in the center position result-
ing in serious or fatal injuries. Only place
a ISOFIX or ISOFIX-compatible child seat
in the left or right out-board rear seating
positions (as shown) to the appropriate
ISOFIX anchors provided.
o Never mount more than one child re-
straint to a single tether or to a single
lower anchorage point. The increased
load caused by multiple seats may cause
the tethers or anchorage points to break,
causing serious injury or death.

1FEATURES OF YOUR HYUNDAI32
!
The ISOFIX anchors are located between the
seatback and the seat cushion of the rear seat
left and right outboard seating positions.
B230D02NF-A
ISOFIX AnchorISOFIX Anchor
Position Indicator
B230D03NF-A
Follow the child seat manufacturer's instruc-
tions to properly install safety seats with ISOFIX
or ISOFIX-compatible attachments.
Once you have installed the ISOFIX child re-
straint seat, assure that the seat is properly
attached to the ISOFIX and tether anchors.
Also, test the safety seat before you place the
child in it. Tilt the seat from side to side. Also try
to tug the seat forward. Check to see if the
anchors hold the seat in place.
!
o When using the vehicle’s “ISOFIX” sys-
tem to install a child restraint system in
the rear seat, all unused vehicle rear seat
belt metal latch plates or tabs must be
latched securely in their seat belt buck-
les and the seat belt webbing must be
retracted behind the child restraint to
prevent the child from reaching and tak-
ing hold of unretracted seat belts. Un-
latched metal latch plates or tabs may
allow the child to reach the unretracted
seat belts which may result in strangu-
lation and a serious injury or death to the
child in the child restraint.
WARNING:
WARNING:
A child can be seriously injured or killed in
a collision if the child restraint is not prop-
erly anchored to the car and the child is not
properly restrained in the child restraint.
Always follow the child seat manufacturer’s
instructions for installation and use.

1
FEATURES OF YOUR HYUNDAI
33
B230G04Y-AATChild Restraint System Installation on
Rear Seats
B230G01NF-A
On outboard rear seats
B235G02NF-A
On rear seat center positionTo install a child restraint system in the rear
seats, extend the shoulder/lap belt entirely from
its retractor until a "click" is felt. This will engage
the seat belt retractor automatic locking feature,
which allows the seat belt to retract but not
extend. Install the child restraint system, buckle
the seat belt and allow the seat belt to take up
any slack. Make sure that the lap portion of the
belt is tight around the child restraint system and
the shoulder portion of the belt is positioned so
that it cannot interfere with the child's head or
neck. Also, double check to be sure that the
retractor has engaged the Automatic Locking
feature by trying to extend webbing out of the
retractor. If the retractor is in the Automatic
Locking mode, the belt will be locked. After
installation of the child restraint system, try to
move it in all directions to be sure the child
restraint system is securely installed. If you need
to tighten the belt, pull more webbing toward the
retractor. When you unbuckle the seat belt and
allow it to retract, the retractor will automatically
revert back to its normal seated passenger
Emergency Locking usage condition.
!
WARNING:
o If the retractor is not in the Automatic
Locking mode, the child restraint can
move when your vehicle turns or stops
suddenly. A child can be seriously in-
jured or killed if the child restraint is not
properly anchored to the car, including
setting the retractor to the Automatic
Locking mode.
o Do not install any child restraint system
in the front passenger seat. Should an
accident occur and cause the passenger
side airbag to deploy, it could severely
injure or kill an infant or child seated in
an infant or child seat. Therefore, only
use a child restraint system in the rear
seat of your vehicle.NOTE:o Before installing the child restraint sys-
tem in any seating position, read the
instructions supplied by the child re-
straint system manufacturer.
o If the seat belt does not operate as de-
scribed, have the system checked imme-
diately by your authorized Hyundai dealer.