2011 Hyundai Sonata check engine

45
Features of your vehicle
Immobilizer system (if equipped)Your vehicle is equipped with an elec-
tronic engine immobilizer system to
reduce the risk of unauthorized vehicle
use.
Your immobilizer system is comprised of
a small transponder in the ignition key
and electronic devices inside the vehicle.
With the immobilizer system, whenever
you insert your ignition key into the igni-
tion switch and turn it to ON, it checks
and determines and verifies if the ignition
key is valid.
If the key is determined to be valid, the
engine will start.
If the key is determined to be invalid, the
engine will not start.To activate the immobilizer system:Turn the ignition key to the OFF position.
The immobilizer system activates auto-
matically. Without a valid ignition key for
your vehicle, the engine will not start.To deactivate the immobilizer sys-tem:Insert the ignition key into the key cylin-
der and turn it to the ON position.
✽ NOTICEWhen starting the engine, do not use the
key with other immobilizer keys around.
Otherwise the engine may not start or
may stop soon after it starts. Keep each
key separate in order to avoid a starting
malfunction.
✽NOTICEIf you need additional keys or lose your
keys, consult an authorized HYUNDAI
dealer.
CAUTION
The transponder in your ignition
key is an important part of the immobilizer system. It is designedto give years of trouble-free service, however you should avoid expo-sure to moisture, static electricity and rough handling. Immobilizersystem malfunction could occur.
WARNING
In order to prevent theft of your
vehicle, do not leave spare keys
anywhere in your vehicle. Your
Immobilizer password is a cus-
tomer unique password and should
be kept confidential. Do not leave
this number anywhere in your vehi-
cle.
CAUTION
Do not change, alter or adjust the immobilizer system because itcould cause the immobilizer sys- tem to malfunction and should onlybe serviced by an authorized HYUNDAI dealer.
Malfunctions caused by improperalterations, adjustments or modifi- cations to the immobilizer systemare not covered by your vehicle manufacturer warranty.
CAUTION
Do not put metal accessories nearthe ignition switch.
Metal accessories may interrupt thetransponder signal and may pre- vent the engine from being started.

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47
Features of your vehicle
LockingUsing the door handle switch
Pressing the button of the front outside
door handles with all doors closed and
any door unlock, locks all the doors. If all
doors, trunk and engine hood are closed,
the hazard warning lights will blink and
the chime will sound once to indicate that
all doors are locked.However, if any door remains open, the
doors won't lock and the chime will sound
for 3 seconds. Close the door and try
again to lock the doors.
If trunk lid or engine hood remains open,
the hazard warning light and chime won't
operate. After this, trunk lid and engine
hood are closed, the hazard warning
lights blink once.
The button will only operate when the
smart key is within 28~40in. (0.7~1m)
from the outside door handle.
If you want to make sure that a door has
locked or not, you should check the door
lock button inside the vehicle or pull the
outside door handle.
Even though you press the outside door
handle buttons, the doors will not lock
and the chime will sound for 3 seconds if
any of following occur:
• The smart key is in the vehicle.
• The ignition switch is in ACC or ON
position.
• Any door except the trunk is open. Using the button on the smart key
All doors are locked if the lock button(1)
is pressed. If all doors, trunk and hood
are closed, the hazard warning lights will
blink and the chime will sound once to
indicate that all doors are locked.
However, if any door, trunk or engine
hood remains open, the hazard warning
lights and the chime will not operate. If all
doors, trunk and engine hood are closed
after the lock button is pressed, the haz-
ard warning lights blink.

OYF049213OYF049003

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Features of your vehicle28
4Opening the hood 1. Pull the release lever to unlatch the
hood. The hood should pop open
slightly. 2. Go to the front of the vehicle, raise the
hood slightly, pull the secondary latch
(1) inside of the hood center and lift
the hood (2).
3. Raise the hood. It will raise completely by itself after it has been raised about
halfway.
Closing the hood1. Before closing the hood, check the fol-lowing:
• All filler caps in engine compartment must be correctly installed.
• Gloves, rags or any other com- bustible material must be removed
from the engine compartment.
2. Lower the hood halfway and push down to securely lock in place.
HOOD

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OYF049019N
WARNING
• Before closing the hood, ensurethat all obstructions are removed
from the hood opening. Closing
the hood with an obstruction
present in the hood opening may
result in property damage or
severe personal injury.
• Do not leave gloves, rags or any other combustible material in the
engine compartment. Doing so
may cause a heat-induced fire.
• 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.
• Do not move the vehicle with the hood raised. The view will be
blocked and the hood could fall
or be damaged.

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429
Features of your vehicle
Opening the fuel filler lidThe fuel filler lid must be opened from
inside the vehicle by pushing the fuel
filler lid opener button.✽NOTICEIf the fuel filler lid will not open because
ice has formed around it, tap lightly or
push on the lid to break the ice and
release the lid. Do not pry on the lid. If
necessary, spray around the lid with an
approved de-icer fluid (do not use radi-
ator anti-freeze) or move the vehicle to a
warm place and allow the ice to melt.
1. Stop the engine.
2. To open the fuel filler lid, push the fuel
filler lid opener button.
3. Pull the fuel filler lid (1) out to fully open.
4. To remove the cap, turn the fuel tank cap (2) counterclockwise.
5. Refuel as needed.
Closing the fuel filler lid1. To install the cap, turn it clockwise until it “click”. This indicates that the cap is
securely tightened.
2. Close the fuel filler lid and push it in lightly making sure that it is securely
closed.
FUEL FILLER LID

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OYF049021
WARNING
- Refueling
• If pressurized fuel sprays out, itcan cover your clothes or skin
and thus subject you to the risk
of fire and burns. Always remove
the fuel cap carefully and slowly.
If the cap is venting fuel or if you
hear a hissing sound, wait until
the condition stops before com-
pletely removing the cap.
• Do not "top off" after the nozzle automatically shuts off when
refueling.
• Tighten the cap until it clicks, oth- erwise the Malfunction Indicator
Light will illuminate.
• Always check that the fuel cap is installed securely to prevent fuel
spillage in the event of an acci-
dent.

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Features of your vehicle30
4
(Continued)
Use only approved portable plas-
tic fuel containers designed to
carry and store gasoline.
• Do not use cellular phones while refueling. Electric current and/or
electronic interference from cel-
lular phones can potentially
ignite fuel vapors causing a fire.
• When refueling, always shut the engine off. Sparks produced by
electrical components related to
the engine can ignite fuel vapors
causing a fire. Once refueling is
complete, check to make sure the
filler cap and filler door are
securely closed, before starting
the engine.
• DO NOT use matches or a lighter and DO NOT SMOKE or leave a lit
cigarette in your vehicle while at
a gas station especially during
refueling. Automotive fuel is
highly flammable and can, when
ignited, result in fire.
(Continued)
(Continued)
• Do not get back into a vehicleonce you have begun refueling
since you can generate static
electricity by touching, rubbing
or sliding against any item or fab-
ric (polyester, satin, nylon, etc.)
capable of producing static elec-
tricity. Static electricity discharge
can ignite fuel vapors resulting in
rapid burning. If you must re-
enter the vehicle, you should
once again eliminate potentially
dangerous static electricity dis-
charge by touching a metal part
of the vehicle, away from the fuel
filler neck, nozzle or other gaso-
line source.
• When using an approved portable fuel container, be sure to
place the container on the
ground prior to refueling. Static
electricity discharge from the
container can ignite fuel vapors
causing a fire. Once refueling has
begun, contact with the vehicle
should be maintained until the
filling is complete.
(Continued)
WARNING -
Refueling dan-
gers
Automotive fuels are flammable
materials. When refueling, please
note the following guidelines care-
fully. Failure to follow these guide-
lines may result in severe personal
injury, severe burns or death by fire
or explosion.
• Read and follow all warningsposted at the gas station facility.
• Before refueling, note the loca- tion of the Emergency Gasoline
Shut-Off, if available, at the gas
station facility.
• Before touching the fuel nozzle, you should eliminate potentially
dangerous static electricity dis-
charge by touching another metal
part of the vehicle, a safe dis-
tance away from the fuel filler
neck, nozzle, or other gas source.
(Continued)

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435
Features of your vehicle
Electric power steering (EPS)The power steering uses a motor to
assist you in steering the vehicle. If the
engine is off or if the power steering sys-
tem becomes inoperative, the vehicle
may still be steered, but it will require
increased steering effort.
The motor driven power steering is con-
trolled by a power steering control unit
which senses the steering wheel torque
and vehicle speed to command the
motor.
The steering becomes heavier as the
vehicle’s speed increases and becomes
lighter as the vehicle’s speed decreases
for optimum steering control.
Should you notice any change in the
effort required to steer during normal
vehicle operation, have the power steer-
ing checked by an authorized HYUNDAI
dealer.
✽NOTICEThe following symptoms may occur dur-
ing normal vehicle operation:
• The EPS warning light does not illumi-
nate.
• The steering effort is high immediately after turning the ignition switch on.
This happens as the system performs
the EPS system diagnostics. When the
diagnostics is completed, the steering
wheel will return to its normal condi-
tion.
• A click noise may be heard from the EPS relay after the ignition switch is
turned to the ON or LOCK position.
• A motor noise may be heard when the vehicle is at a stop or at a low driving
speed.
• If the Electric Power Steering System does not operate normally, the warn-
ing light will illuminate on the instru-
ment cluster. The steering wheel may
become difficult to control or operate
abnormally. Take your vehicle to an
authorized HYUNDAI dealer and
have the vehicle checked as soon as
possible.
• When you operate the steering wheel in low temperature, abnormal noise
could occur. If temperature rises, the
noise will disappear. This is a normal
condition.
STEERING WHEEL
CAUTION
• If the Electric Power Steering
System does not operate normal-ly, the warning light will illuminateon the instrument cluster. Thesteering wheel may become diffi-cult to control or operate abnor- mally. Take your vehicle to anauthorized HYUNDAI dealer and have the vehicle checked as soonas possible.
• When you operate the steering wheel in low temperature, abnor-mal noise could occur. If tempera-ture rises, the noise will disap-pear. This is a normal condition.

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Features of your vehicle54
4Two-press unlockDriver Door 1st Press - The driver's
door will unlock when pressing the
unlock button on the transmitter or smart
key, pressing the button of the driver's
outside door handle with the smart key,
or inserting the key into the key hole of
the driver's outside door and turning the
key toward the rear of the vehicle. All
doors will unlock when pressing the
unlock button on the transmitter or smart
key, pressing the button of the driver's
outside door handle with the smart key,
or inserting the key into the key hole of
the driver's outside door and turning the
key toward the rear of the vehicle within
4 seconds.
All Doors 1st Press - All doors will
unlock when pressing the unlock button
on the transmitter or smart key, pressing
the button of the driver's outside door
handle with the smart key, or inserting
the key into the key hole of the driver's
outside door and turning the key toward
the rear of the vehicle.
Headlamp delayOn - If you turn the ignition switch to the
ACC or OFF position with the head-
lamp ON, the headlamps remain on
for about 20 minutes. Also, the
headlamp welcome operation will
be activated. Refer to the [LIGHT-
ING] section in this chapter.
Off - The headlamp delay and headlamp
welcome operation will be can-
celed.Horn feedback (if equipped)On - After locking the door by pressing
the lock button on the transmitter, if
you press the lock button again
within 4 seconds, the warning
sound will operate once to indicate
that all doors are locked.
Off - The Horn feedback operation will
be canceled.
Warnings and indicatorsAll warning lights are checked by turning
the ignition switch ON (do not start the
engine). Any light that does not illuminate
should be checked by an authorized
HYUNDAI dealer.
After starting the engine, check to make
sure that all warning lights are off. If any
are still on, this indicates a situation that
needs attention. When releasing the
parking brake, the brake system warning
light should go off. The fuel warning light
will stay on if the fuel level is low.

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455
Features of your vehicle
ECO indicator (if equipped)The ECO indicator light helps that you to
drive economically.
It is displayed if you drive fuel efficiently
to help you improve fuel efficiency.
• The ECO indicator (green) will turn on when you are driving fuel efficiently in
the ECO ON mode.
If you don't want the indicator dis-
played, you can turn the ECO ON
mode to OFF mode by pressing the
TRIP button.
As per ECO ON/OFF Mode operation,
refer to the previous page. (if equipped)
• The fuel-efficiency can be changed by the driver's driving habits and road
conditions.
• The ECO indicator does not funtion in P (Park), and N (Neutral), R (Reverse).
• When the instant fuel consumption mode is displayed on the LCD screen,
the ECO indicator turns off (if
equipped).
Air bag warning lightThis warning light will illuminate for
approximately 6 seconds each time you
turn the ignition switch to the ON posi-
tion.
This light also comes on when the
Supplemental Restraint System (SRS) is
not working properly. If the SRS air bag
warning light does not come on, or
continuously remains on after operating
for about 6 seconds when you turned the
ignition switch to the ON position or start-
ed the engine, or if it comes on while
driving, have the SRS inspected by an
authorized HYUNDAI dealer.
Anti-lock brake system(ABS) warning light This light illuminates if the ignition switch
is turned ON and goes off in approxi-
mately 3 seconds if the system is operat-
ing normally.
If the ABS warning light remains on,
comes on while driving, or does not
come on when the ignition switch is
turned to the ON position, this indicates
that there may be a malfunction with the
ABS.
If this occurs, have your vehicle checked
by an authorized HYUNDAI dealer as
soon as possible. The normal braking
system will still be operational, but with-
out the assistance of the anti-lock brake
system.

ECO

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