2004 Hyundai Sonata open hood

FEATURES OF YOUR HYUNDAI 1- 7
B070B03Y-AATArmed StagePark the car and stop the engine. Arm the
system as described below.
1) Remove the ignition key from the ignition
switch.
2) Make sure that the engine hood and trunk lid
are closed and latched.
3) Lock the doors using the transmitter of the
keyless entry system.
After completion of the steps above, the turn
signal lamp will blink once to indicate that the
system is armed.
NOTE:1) If any door, trunk lid or engine hood
remains open, the system will not be
armed.
2) If this happens, rearm the system as
described above.
CAUTION:Do not arm the system until all passengers
have left the car. If the system is armed while
a passenger(s) remains in the car, the alarm
may be activated when the remaining
passenger(s) leaves the car.
B070C03L-AATAlarm Stage
The alarm will be activated if any of the following
occurs while the car is parked and the system
is armed.
1) A front or rear door is opened without the
transmitter.
2) The trunk lid is opened without using the key.
3) The engine hood is opened.
The siren will sound for 30 seconds (This
happens 3 times). To turn off the system, unlock
the door or trunk lid with the transmitter.
CAUTION:Avoid trying to start the engine while the
system is armed.
B070D05Y-AATDisarmed Stage
The system will be disarmed when the following
step is taken:
The driver's or passenger's door is unlocked by
depressing the "UNLOCK" button on the trans-
mitter.
After completion of the steps above, the turn
signal lamp will blink twice to indicate that the
system is disarmed.
HEF-218
B070D02Y
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LockUnlock
Trunk

1- 8 FEATURES OF YOUR HYUNDAI
B070E02HP-GATReplacing the batteryWhen the transmitter's battery begins to get
weak, it may take several pushes on the button
to lock or unlock the doors, and the LED will not
light. Replace the battery as soon as possible.
Battery type : CR2032
Replacement instructions:
1. Carefully separate the case with a blade
screwdriver as shown in the illustration. If any door, trunk lid or engine hood is not opened
within 30 seconds, the system will be rearmed.NOTE:Once the system has been disarmed, it can
not be rearmed except by repeating the
arming procedures.
CAUTION:Only the transmitter can disarm the armed
stage. If the transmitter does not disarm the
system, it is necessary to take the following
steps;
1. Unlock the door with the key, which will
cause the alarm to be activated.
2. Insert the key in the ignition key cylinder
and turn the ignition key to "ON" posi-
tion.
3. Wait for 30 seconds.
After completing the steps above, the sys-
tem will be disarmed.
Keyless Entry System (If installed)
Locking doors
1. Close all doors.
2. Push the "LOCK" button on the transmitter.
3. All doors will lock and the turn signal lamp will
blink once to indicate that the system is
armed.
Unlocking doors1. Push the "UNLOCK" button on the transmit-
ter.
2. All doors will unlock and the turn signal lamp
will blink twice to indicate that the system is
disarmed.
Releasing the trunk lidPush and hold the trunk release button on
transmitter for longer than 1 second.
HEF-192A
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Screwdriver

1- 36 FEATURES OF YOUR HYUNDAI
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B260H02A-AATParking Brake/Brake Fluid Level
Warning Lightadding fluid, if no other trouble is found, the car
should be immediately and carefully driven to a
Hyundai dealer for inspection. If further trouble
is experienced, the vehicle should not be driven
at all but taken to a dealer by a professional
towing service or some other safe method.
Your Hyundai is equipped with dual-diagonal
braking systems. This means you still have
braking on two wheels even if one of the dual
systems should fail. With only one of the dual
systems working, more than normal pedal travel
and greater pedal pressure are required to stop
the car. Also, the car will not stop in as short a
distance with only half of the brake system
working. If the brakes fail while you are driving,
shift to a lower gear for additional engine braking
and stop the car as soon as it is safe to do so.
WARNING:If you suspect brake trouble, have your
brakes checked by a Hyundai dealer as
soon as possible. Driving your car with a
problem in either the brake electrical sys-
tem or brake hydraulic system is danger-
ous, and could result in a serious injury or
death.
Warning Light OperationThe parking brake/brake fluid level warning light
should come on when the parking brake is
applied and the ignition switch is turned to "ON"
or "START". After the engine is started, the light
should go out when the parking brake is re-
leased.
If the parking brake is not applied, the warning
light should come on when the ignition switch is
turned to "ON" or "START", then go out when
the engine starts. If the light comes on at any
other time, you should slow the vehicle and bring
it to a complete stop in a safe location off the
roadway.
The brake warning light indicates that the brake
fluid level in the brake master cylinder is low and
hydraulic brake fluid conforming to DOT 3 or
DOT 4 specifications should be added. After
B260J01A-AATCharging 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 6-18 by pushing down on the center of
the belt. And then have the system checked by
your Hyundai dealer.
B260K01S-AATTrunk Lid Open Warning Light
This light remains on unless the trunk lid is
completely closed and latched.
B260L01Y-AAT
Door 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 driver's side front door is open. The
chime sounds and the light remains on
until the key is removed from the ignition.

1- 38 FEATURES OF YOUR HYUNDAI
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B290A01A-AATENGINE COOLANT TEMPERATURE
GAUGE
WARNING:
Never remove the radiator cap when the
engine is hot. The engine coolant is under
pressure and could erupt and cause severe
burns. Wait until the engine is cool before
adding coolant to the reservoir.
The needle on the engine coolant temperature
gauge should stay in the normal range. If it
moves across the dial to "H" (Hot), pull over and
stop as soon as possible and turn off the engine.
Then open the hood and check the coolant
reservoir level and the water pump drive belt. If
you suspect cooling system trouble, have your
cooling system checked by a Hyundai dealer as
soon as possible.
B300A01A-AATSPEEDOMETER
Your Hyundai's speedometer is calibrated in
miles per hour (on the outer scale) and kilome-
ters per hour (on the inner scale).HEF-009HEF-008B
B280A01A-AATFUEL GAUGE
The needle on the gauge indicates the approxi-
mate fuel level in the fuel tank. The fuel capacity
is given in Section 9.
HEF-010 B270A01A-AAT
BRAKE PAD WEAR WARNING SOUND
The front disc brake pads have wear indicators
that should make a high-pitched squealing or
scraping noise when new pads are needed. The
sound may come and go or be heard all the time
when the vehicle is moving. It may also be heard
when the brake pedal is pushed down firmly.
Excessive rotor damage will result if the worn
pads are not replaced. See your Hyundai dealer
immediately.

FEATURES OF YOUR HYUNDAI 1- 59
B570A01L-GATHOOD RELEASE
1. Pull the release knob to unlatch the hood.
2. Press the safety catch lever up and lift the
hood.
3. Raise the hood by hand.
When closing the hood, slowly close the hood
and make sure it locks into place.
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 will
illuminate.
1MS104008 B560B01L-GAT
Manual Fuel Filler Lid Release
If the fuel filler lid cannot be opened using the
remote opener, a manual opener handle is
located inside the trunk on the left side. Open the
fuel filler lid by pulling on this handle as shown
in the illustration.
HXG115
WARNING:o Always double check to be sure that the
hood is firmly latched before driving
away. If it is not latched, the hood could
open while the vehicle is being driven,
causing a total loss of visibility, which
might result in an accident.
o Do not move the vehicle with the hood
in the raised position, as vision is ob-
structed and the hood could fall or be
damaged.
HEF-134A
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WHAT TO DO IN AN EMERGENCY 3- 3
o If you should accidentally get acid on your
skin or in your eyes, immediately remove
any contaminated clothing and flush the area
with clear water for at least 15 minutes. Then
promptly obtain medical attention. If you
must be transported to an emergency facil-
ity, continue to apply water to the affected
area with a sponge or cloth.
o The gas produced by the battery during the
jump-start operation is highly explosive. Do
not smoke or allow a spark or an open flame
in the vicinity.
o The battery being used to provide the jump
start must be 12-volt. If you cannot deter-
mine that it is a 12-volt battery, do not attempt
to use it for the jump start.
o To jump start a car with a discharged battery,
follow this procedure exactly:
1. If the booster battery is installed in another
vehicle, be sure the two vehicles are not
touching.
2. Turn off all unnecessary lights and acces-
sories in both vehicles.
3. Attach the clamps of the jumper cable in the
exact location shown on the illustration. First,
attach one clamp of the jumper cable to the
positive (+) post or cable of the discharged
battery. Then attach the other end of the
same cable to the positive (+) post or cable
of the booster battery. Next, using the other
cable, attach one clamp to the negative (-)
post or cable of the booster battery. Then
attach the other end of that cable to a solidmetal part of the engine away from the
battery. Do not connect the cable to any
moving part.
4. Start the engine in the car with the booster
battery and let it run for a few minutes. This
will help to assure that the booster battery is
fully charged. During the jumping operation,
run the engine in this vehicle at about 2,000
rpm.
5. Start your engine using the normal starting
procedure. After the engine starts, leave the
jumper cables connected and let the engine
run at fast idle or about 2,000 rpm for several
minutes.
6. Carefully remove the jumper cables in the
reverse order of attachment.
If you do not know why your battery became
discharged (because the lights were left on,
etc.), have the charging system checked by
your Hyundai dealer.D030A01A-AATIF THE ENGINE OVERHEATS
If your temperature gauge indicates overheat-
ing, you experience a loss of power, or hear loud
pinging or knocking, the engine is probably too
hot. If this happens, you should:
1. Pull off the road and stop as soon as it is safe
to do so.
2. Place the gear selector lever in "P" (auto-
matic), or neutral (manual transaxle) and set
the parking brake. If the air conditioning is on,
turn it off.
3. If engine coolant is running out under the car
or steam is coming out from the hood, stop
the engine. Do not open the hood until the
coolant has stopped running or the steaming
has stopped. If there is no visible loss of
engine coolant and no steam, leave the
engine running and check to be sure the
engine cooling fan is operating. If the fan is
not running, turn the engine off.
4. Check to see if the water pump drive belt is
missing. If it is not missing, check to see that
it is tight. If the drive belt seems to be
satisfactory, check for coolant leaking from
the radiator, hoses or under the car. (If the
air conditioning had been in use, it is normal
for cold water to be draining from it when you
stop).

6- 6 DO-IT-YOURSELF MAINTENANCE
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G040A03A-AATCHANGING THE OIL AND FILTERG030D01A-AATAdding Oil
If the oil level is close to or below the "L" mark,
add oil until it reaches the "F" mark. To add oil:
1. Remove the oil filler cap by turning it counter-
clockwise.
2. Add oil, then check the level again. Do not
overfill.
3. Replace the cap by turning it clockwise.
The distance between the "F" and "L" marks is
equal to about 1 quart of oil.The engine oil and filter should be changed at
those intervals specified in the maintenance
schedule in Section 5. If the car is being driven
in severe conditions, more frequent oil and filter
changes are required.
The procedure for changing the oil and filter is
as follows:
1. Park the car on level ground and set the
parking brake. Start the engine and let it
warm up until the needle on the coolant
temperature gauge moves above the lowest
mark. Turn the engine off and place the gear
selector lever in "P" (automatic) or reverse
gear (manual transaxle). Set the parking
brake.
G030D01Y
HSM394
DOHC V6DOHC V62. Open the hood and remove the engine oil
filler cap.
3. Slide underneath the car and loosen the
drain plug by turning it counterclockwise with
a wrench of the proper size. Be sure that a
drain pan is in position to catch the oil as it
drains out, then remove the drain plug.
WARNING:Be very careful when draining the engine oil
as it may be hot enough to burn you!
4. When the oil has stopped draining, replace
the drain plug using a new washer and
retighten by turning it clockwise.
Tightening torque is: 3.5 ~ 4.5 kgf.m

DO-IT-YOURSELF MAINTENANCE 6- 13
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G110C01Y-AATTransaxle Fluid CapacityThe fluid capacity of the automatic transaxle is
8.2 U.S. quarts.
WARNING:The transaxle fluid level should be checked
when the engine is at normal operating
temperature. This means that the engine,
radiator, exhaust system etc., are very hot
so you should exercise great care not to
burn yourself during this procedure.
G110D02L-AATTo Check the Transaxle Fluid Level
Park the car on level ground with the parking
brake engaged. When the transaxle fluid level
is checked, the transaxle fluid should be at
normal operating temperature and the engine
idling.While the engine is idling, apply the brakes and
move the gear selector lever from "P" to each
of its other positions — "R", "N", "D" — and then
return to "N" or "P". With the engine still idling:
1. Open the hood, being careful to keep hands,
long hair and clothing clear of any moving
parts.
2. Remove the transaxle dipstick, wipe it clean,
reinsert the dipstick as far as it will go, then
remove it again. Now check the fluid level on
the dipstick. It should be in the "HOT" range
on the dipstick.
3. If the transaxle fluid level is low, use a funnel
to add transaxle fluid through the dipstick
tube until the level reaches the "HOT" range.
Do not overfill.
C090A01YG110D02Y-1
DOHC V6