2004 Hyundai Elantra catalytic converter

1FEATURES OF YOUR HYUNDAI
2FUEL RECOMMENDATIONS
B010A02A-AAT
Use Unleaded Gasoline
Unleaded gasoline with a Pump Octane Rating
of 87 (Research Octane Number 91) or higher
must be used in your Hyundai.
If leaded gasoline is used, it will cause the
catalytic converter to become ineffective and
the emission control system to malfunction.
This can also result in increased maintenance
expense.
To avoid accidental use of leaded fuel, the larger
nozzle used with leaded gasoline at service
stations cannot be inserted into the fuel tank
opening of your Hyundai.
B010A03E
UNLEADED
FUEL ONLY
CAUTION:o Do not "TOP-OFF" after the first nozzle
shut off when refueling.
o The fuel cap must be tightened at least
3 clicks, otherwise " " light may illu-
minate.
!
B010B01A-AAT
What 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.
B010C01A-AAT
Use of MTBE
Hyundai 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-AAT
Do Not Use Methanol
Fuels 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.
!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.).

1FEATURES OF YOUR HYUNDAI
47
B260Q01E-GATCruise Indicator Light (If Installed)
The cruise indicator light in the instrument clus-
ter is illuminated when the cruise control main
switch on the end of the barrel is pushed.
The indicator light does not illuminate when the
cruise control main switch is pushed a second
time.
Information on the use of cruise control may be
found on page 1-77.
B260J01A-AAT
Charging System Warning Light
The charging system warning light should come
on when the ignition is turned on, then go out
when the engine is running. If the light stays on
while the engine is running, there is a malfunc-
tion in the electrical charging system. If the light
comes on while you are driving, stop, turn off the
engine and check under the hood. First, make
certain the generator drive belt is in place. If it is,
check the tension of the belt.
Do this as shown on page 6-20 by pushing down
on the center of the belt. And then, have the
system checked by your Hyundai dealer.
B260K01E-GAT
Trunk Lid (4 door)/Tail Gate
(5 door) Open Warning Light
This light remains on unless the trunk lid/tail gate
is completely closed.
B260L01Y-AATDoor Ajar Warning Light
and Chime
The door ajar warning light warns you that a door
is not completely closed and the chime warns
you that driver's side front door is not completely
closed.
NOTE:To remind you not to lock the key inside the
car, the warning light comes on whenever
the key is in the "LOCK" position and a door
is open. The warning chime only sounds
whenever the key is in the "LOCK" position
and the driver's side front door is open. The
chime sounds and the light remains on
until the key is removed from the ignition.
B260M01A-AAT
Low Fuel Level Warning Light
The low fuel level warning light comes on when
the fuel tank is approaching empty. When it
comes on, you should add fuel as soon as
possible. Driving with the fuel level warning light
on or with the fuel level below "E" can cause the
engine to misfire and damage the catalytic
converter.
B260E02O-AAT
Seat belt reminder light
and chime
The seat belt reminder light blinks until your seat
belt is fastened when the ignition key is turned
from the "OFF" position to "ON" or "START".
And the warning chime will sound for 6 seconds.

3WHAT TO DO IN AN EMERGENCY
2
D010B02E
D010C01E
IF THE ENGINE WILL NOT START
!
D010A01A-AAT D010B02A-AAT
If Engine Doesn't Turn Over or Turns
Over Slowly
D010C01A-AAT
If Engine Turns Over Normally but Does
Not Start
WARNING:
If the engine will not start, do not push or
pull the car to start it. This could result in a
collision or cause other damage. In addi-
tion, push or pull starting may cause the
catalytic converter to be overloaded and
create a fire hazard.
1. If your car has an automatic transaxle, be
sure the gear selector lever is in "N" or "P"
and the emergency brake is set.
2. Check the battery connections to be sure
they are clean and tight.
3. Turn on the interior light. If the light dims or
goes out when you operate the starter, the
battery is discharged.
4. Check the starter connections to be sure
they are securely tightened.
5. Do not push or pull the vehicle to start it. See
instructions for "Jump Starting".1. Check fuel level.
2. With the key in the "OFF" position, check all
connectors at ignition, coils and spark plugs.
Reconnect any that may be disconnected or
loose.
3. Check the fuel line in the engine room.
4. If the engine still refuses to start, call a
Hyundai dealer or seek other qualified assis-
tance.

EMISSION CONTROL SYSTEMS
7
Emission Control System ............................................. 7-2
Catalytic Converter ....................................................... 7-3
7

7EMISSION CONTROL SYSTEMS
3CATALYTIC CONVERTER
!!WARNING:o Use unleaded fuel only.
o Maintain the engine in good operating
condition. Extremely high catalytic con-
verter temperatures can result from im-
proper operation of the electrical, igni-
tion or multiport electronic fuel injec-
tion.
o If your engine stalls, pings, knocks, or is
hard to start, have your Hyundai dealer
inspect and repair the problem as soon
as possible.
o Avoid driving with a very low fuel level.
Running out of gasoline may cause the
engine to misfire and result in damage to
the catalytic converter.
o Avoid idling the engine for periods
longer than 10 minutes.
o The vehicle should not be pushed or
pulled to get started. This may cause the
catalytic converter to overheat and cre-
ate a fire hazard.
o Do not touch the catalytic converter or
any other part of the exhaust system
while the catalytic converter is hot. Shut
off the engine, wait for at least one hour
before touching the catalytic converter
or any other part of the exhaust system.
o Remember that your Hyundai dealer is
your best source of assistance.
H020A01S-AAT
All Hyundai vehicles are equipped with one or
two monolith type three-way catalytic convert-
ers to reduce the carbon monoxide, hydrocar-
bons and nitrogen oxides contained in the ex-
haust gas. Exhaust gases passing through the
catalytic converter cause it to operate at a very
high temperature. The introduction of large
amounts of unburned gasoline into the exhaust
may cause the catalytic converter to overheat
and create a fire hazard. This risk may be
reduced by observing the following:
WARNING:o Do not stop your Hyundai over any com-
bustible material such as grass, paper,
leaves or rags. These materials might
contact the hot catalytic converter and a
fire might result.
HXDFL1032
Catalytic Converter
(Federal, California)Catalytic Converter
(California)

10INDEX
2
A
Air bag ...............................................................................................1-32
Air Cleaner Filter ...............................................................................6-11
Air Conditioning
Care..............................................................................................6-17
Operation............................................................................ 1-88, 6-17
Switch...........................................................................................1-88
Antenna..........................................................................................1-127
Ashtray..............................................................................................1-60
Audio System
Cassete tape player operation (H240, H290)..........................1-103
CD auto changer (H260, H290) ....................................1-111, 1-121
Compact disc player operation (H260, H290) .............. 1-108, 1-118
Stereo radio operation (H240, H260, H290) ..... 1-100, 1-105, 1-113
B
Battery..................................................................................... 2-15, 6-21
Brake
Anti-lock brake system ................................................................2-11
Brake traction control system (BTCS)........................................2-12
Checking the brakes ....................................................................6-15
Fluid ..............................................................................................6-15
Pedal clearance...........................................................................6-20
Pedal free-play.............................................................................6-20
Breaking-In your New Hyundai .......................................................... 1-3C
Care of Cassette Tapes ................................................................1-125
Care of Disc ...................................................................................1-125
Catalytic Converter............................................................................. 7-3
Child-Protector Rear Door Lock ......................................................... 1-7
Child Restraint System.....................................................................1-24
Installing a Child Restraint System with
"Tether Anchorage" System .....................................................1-26
Securing the Child Restraint Seat with the "ISOFIX" System ....1-29
Cigarette Lighter................................................................................1-60
Clock.................................................................................................1-59
Clutch
Checking fluid...............................................................................6-16
Pedal free-play.............................................................................6-19
Combination Light
Auto light.......................................................................................1-55
Headlight flasher..........................................................................1-55
Headlight switch...........................................................................1-54
High-beam switch........................................................................1-55
Lane change signal ......................................................................1-54
Parking light auto cut ....................................................................1-55
Turn signal operation...................................................................1-54
Consumer Information........................................................................ 8-6
Cooling Fans.....................................................................................6-23
Corrosion protection
Cleaning the interior....................................................................... 4-5
Protecting your Hyundai from corrosion....................................... 4-2
Washing and waxing...................................................................... 4-3
Cruise Control...................................................................................1-77