Engine immobilizer Hyundai Sonata 2019 Owner's Manual

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Convenient features of your vehicle
Battery replacement
If the Smart Key is not working prop-
erly, try replacing the battery with a
new one.
Battery Type: CR2032
To replace the battery:
1. Pry open the rear cover of thesmart key.
2. Remove the old battery and insert the new battery.
3. Reinstall the rear cover of the smart key. If you suspect your smart key might
have sustained some damage, or
you feel your smart key is not work-
ing correctly, contact an authorized
HYUNDAI dealer.
Information
An inappropriately disposed
battery can be harmful to the
environment and human
health. Dispose the battery
according to your local law(s)
and regulation(s).
Immobilizer System
The immobilizer system protects
your vehicle from theft. If an improp-
erly coded key (or other device) is
used, the engine's fuel system is dis-
abled.
When the ignition switch is placed in
the ON position, the immobilizer sys-
tem indicator should come on briefly,
then go off. If the indicator starts to
blink, the system does not recognize
the coding of the key.
Place the ignition switch to the
LOCK/OFF position, then place the
ignition switch to the ON position
again.
The system may not recognize your
key’s coding if another immobilizer
key or other metal object (i.e., key
chain) is near the key. The engine
may not start because the metal may
interrupt the transponder signal from
transmitting normally.
If the system repeatedly does not
recognize the coding of the key, it is
recommended that you contact your
HYUNDAI dealer.
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Convenient features of your vehicle
Press START button again (for smart key system)
This warning message illuminates
if you can not operate the Engine
Start/Stop button when there is a
problem with the Engine Start/Stop
button system.
It means that you could start the engine by pressing the Engine
Start/Stop button once more.
If the warning illuminates each time you press the Engine Start/
Stop button, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer.
Press START button with key(for smart key system)
This warning message illuminates
if you press the Engine Start/Stop
button while the warning message
"Key not detected" is illuminating.
At this time, the immobilizer indica- tor light blinks.
Check BRAKE SWITCH fuse (for smart key system and auto-matic transaxle)
This warning message illuminates
if the brake switch fuse is discon-
nected.
It means that you should replace the fuse with a new one. If that is
not possible, you can start the
engine by pressing the Engine
Start/Stop button for 10 seconds in
the ACC position.
Shift to P or N to start engine(for smart key system and auto-matic transaxle)
This warning message illuminates
if you try to start the engine with
the shift lever not in the P (Park) or
N (Neutral) position.
Information
You can start the engine with the shift
lever in the N (Neutral) position. But,
for your safety, we recommend that
you start the engine with the shift
lever in the P (Park) position.
Door, Hood, Trunk Open
It means that any door, hood, or
trunk is open.
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Before driving the vehicle, you
should confirm that the door/
hood/trunk is fully closed.
Also, check there is no door/
hood/trunk open warning light
or message displayed on the
instrument cluster.
CAUTION

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Convenient features of your vehicle
Electronic StabilityControl (ESC) OFFIndicator Light
This indicator light illuminates:
Once you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3seconds and then goes off.
When you deactivate the ESC sys- tem by pressing the ESC OFF but-
ton.
For more information, refer to
"Electronic Stability Control
(ESC)" in chapter 5.
Immobilizer Indicator Light (Without SmartKey)
This indicator light illuminates:
When the vehicle detects the immo-
bilizer in your key properly while the
ignition switch is ON.
- At this time, you can start the
engine.
- The indicator light goes off after starting the engine.
This indicator light blinks:
When there is a malfunction with the
immobilizer system.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
Immobilizer IndicatorLight (With Smart Key)
This indicator light illuminates for
up to 30 seconds:
When the vehicle detects the smart
key in the vehicle properly while the
ignition switch or the Engine Start/
Stop button is ACC or ON.
- At this time, you can start the
engine.
- The indicator light goes off after starting the engine.
This indicator light blinks for a few
seconds:
When the smart key is not in the
vehicle.
- At this time, you can not start theengine.

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Convenient features of your vehicle
3
This indicator light illuminates for
2 seconds and goes off:
When the vehicle can not detect the
smart key which is in the vehicle
while the ignition switch or the
Engine Start/Stop button is ON.
In this case, have your vehicle inspect-
ed by an authorized HYUNDAI dealer.
This indicator light blinks:
When the battery of the smart keyis weak.
- At this time, you can not start theengine. However, you can start the
engine if you press the ignition
switch or the Engine Start/Stop but-
ton with the smart key. (For more
information, refer to "Starting
the Engine" in chapter 5).
When there is a malfunction with the immobilizer system.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
Turn Signal IndicatorLight
This indicator light blinks:
When you turn the turn signal light
on.
If any of the following occurs, there
may be a malfunction with the turn
signal system. In this case, have your
vehicle inspected by an authorized
HYUNDAI dealer.
- The indicator light does not blinkbut illuminates.
- The indicator light blinks more rapidly.
- The indicator light does not illumi- nate at all.
High Beam IndicatorLight
This indicator light illuminates:
When the headlights are on and in
the high beam position.
When the turn signal lever is pulled into the Flash-to-Pass position.
Smart High Beam indi-cator (if equipped)
This warning light illuminates :
When the high-Beam is on with the
light switch in the AUTO light posi-
tion.
If your vehicle detects oncoming or preceding vehicles, the Smart High
Beam system will switch the high
beam to low beam automatically.
For more information, refer to
"Smart High Beam" in this chap-
ter.