2018 Hyundai Sonata Plug-in Hybrid warning

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Convenient features of your vehicle
3
AUTO HOLD Indicator
This indicator illuminates:
[White] When you activate the autohold system by pressing the AUTO
HOLD button.
[Green] When you completely stop the vehicle by depressing the
brake pedal with the auto hold sys-
tem activated.
[Yellow] When there is a malfunc- tion with the auto hold system.
In this case, have the vehicle
inspected by an authorized
HYUNDAI dealer.
For more information, refer to
"Auto Hold" in chapter 5.
SPORT Mode Indicator (if equipped)
This indicator illuminates:
When you select "SPORT" mode
as drive mode.
For more information, refer to
"Drive Mode Integrated Control
System" in chapter 5.
ECO Mode Indicator
This indicator illuminates:
When you select "ECO" mode as drive mode.
For more information, refer to
"Drive Mode Integrated Control
System" in chapter 5.
AUTO
HOLDSPORT
Do not monitor the ECO indica-
tor while driving. This may dis-
tract you, and may cause an
accident, resulting in severe
personal injury.
WARNING
ECO

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Convenient features of your vehicle
Low Tire PressureWarning Light
This warning light illuminates:
When you turn the Engine Start/Stop
button to the ON position.
- It illuminates for approximately 3seconds and then goes off.
When one or more of your tires are significantly underinflated (The
location of each underinflated tire
is displayed on the LCD display).
For more information, refer to
"Tire Pressure Monitoring System
(TPMS)" in chapter 6.
This warning light remains ON
after blinking for approximately 60
seconds, or repeatedly blinks ON
and OFF in 3 second intervals:
When there is a malfunction with the
TPMS.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
For more information, refer to
"Tire Pressure Monitoring System
(TPMS)" in chapter 6.
The TPMS cannot alert you to
severe and sudden tire damage
caused by external factors.
If you notice any vehicle insta-
bility, immediately take your
foot off the accelerator pedal,
apply the brakes gradually with
light force, and slowly move to
a safe position off the road.
WARNING

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Lane Keeping AssistSystem (LKAS)Indicator Light(if equipped)
This indicator light illuminates:
[Green] When the system operat-
ing conditions are satisfied.
[White] The system operating con- ditions are not satisfied.
[Yellow] When there is a malfunc- tion with the lane keeping assist
system.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
For more details, refer to "Lane
Keeping Assist System (LKAS)" in
chapter 5.
Warning messages
Shift to P
This warning message is displayed
when you attempt to turn OFF the
vehicle without setting the shift lever
in P (Park).
At this time, the Engine Start/Stop
button turns to the ACC position
(When you re-press the Engine
Start/Stop button again, it will turn to
the ON position).
Low key battery
This warning message is displayed
when the Smart Key battery is dis-
charged while turning the Engine
Start/Stop button to the OFF position.
Press brake pedal to start engine
This warning message is displayed
when the Engine Start/Stop button
changes to the ACC position twice
by repeatedly pressing the button
without depressing the brake pedal.
You can start the vehicle by depress-
ing the brake pedal
Key not in vehicle
This warning message is displayed
when the Smart Key is not in the
vehicle while pressing the Engine
Start/Stop button.
When attempting to start the vehicle,
always have the smart key with you.
Key not detected
This warning message is displayed
when the Smart Key is not detected
while pressing the Engine Start/Stop
button.

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Convenient features of your vehicle
Press START button again
This message is displayed if you
were unable to start the vehicle when
the Engine Start/Stop button was
pressed.
If this occurs, attempt to start the
engine by pressing the Engine Start/
Stop button again.
If the warning message appears
each time you press the Engine
Start/Stop button, have your vehicle
inspected by an authorized Hyundai
dealer.
Press START button with key
This warning message is displayed
when you press the Engine
Start/Stop button while the warning
message, "Key not detected," is dis-
played.
At this time, the immobilizer indicator
light blinks.
Check BRAKE SWITCH fuse
This warning message is displayed if
the brake switch fuse is disconnected.
If this message is displayed, replace
the fuse with a new one before start-
ing the vehicle. If not possible, you
can start the engine by pressing the
Engine Start/Stop button for 10 sec-
onds in the ACC position.
Shift to P to start engine
This warning message is displayed
when you try to start the vehicle with
the shift lever not in P (Park).
Door, Hood, Trunk Open
This warning message is displayed
indicating which door, or the hood, or
the trunk is open.
OLF047584
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
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Sunroof Open (if equipped)
This warning is displayed when the
sunroof is opened, after turning OFF
the vehicle.
Low Tire Pressure
This warning message is displayed if
the tire pressure is low. The corre-
sponding tire on the vehicle will be
illuminated.
For more information, refer to
"Tire Pressure Monitoring System
(TPMS)" in chapter 6.
Turn on FUSE SWITCH
This warning message is displayed
if the fuse switch in the instrument
panel fuse, under the steering wheel
is OFF.
If this message is displayed, turn the
fuse switch on.
For more information, refer to
"Fuses" in chapter 7.
Align steering wheel (if equipped)
This warning message is displayed
when the steering wheel is turned by
90 degrees or wider, either to the left
or to the right, while running the
engine.
In order to align the steering wheel,
turn the wheel in the direction shown
while the engine is running to
straighten the steering wheel.
Steering wheel aligning is com-pleted (if equipped)
If the steering wheel aligning is com-
pleted after "Align steering wheel"
warning message is displayed, this
message is displayed for 2 seconds.
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Convenient features of your vehicle
Low Washer Fluid
This warning message is displayed
in the service reminder mode, when
the washer fluid in the reservoir is
nearly empty.
If this warning message is displayed,
have the washer fluid reservoir
refilled.
Low Fuel
This warning message is displayed if
the fuel tank is almost out of fuel.
When this message is displayed, the
vehicle range is approximately 30
miles.
When this message is displayed, the
low fuel level warning light in the
instrument cluster will come on.
It is recommended to look for the
nearest fueling station and refuel as
soon as possible.
Engine overheated
This warning message is displayed
when the engine coolant tempera-
ture is above 248°F (120°C). This
means that the engine is overheated
and may be damaged.
If your vehicle is overheated, refer
to "Overheating" in chapter 6.
Check headlight (if equipped)
This warning message is displayed,
if the headlamps are not operating
properly. The headlamp bulb may
need to be replaced. If the vehicle is
equipped with LED headlamps, have
the vehicle inspected by an author-
ized HYUNDAI dealer.
Information
Make sure to replace the burned out
bulb with a new one of the same
wattage rating.
Check headlamp LED(if equipped)
This warning message is displayed if
there is a problem with the LED
headlamp. Have the vehicle inspect-
ed by an authorized HYUNDAI deal-
er.
Check headlamp cooling fan(if equipped)
This warning message is displayed if
there is a problem with headlamp
fan. Have the vehicle inspected by an
authorized HYUNDAI dealer.
Check smart high beam system(if equipped)
This warning message is displayed if
there is a problem with the Smart
High Beam System. Have the vehicle
inspected by an authorized
HYUNDAI dealer.
For more information, refer to
"Smart High Beam System" in
chapter 3.
i

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Convenient features of your vehicle
3
Check Auton. EmergencyBraking system(if equipped)
This warning message is displayed if
there is a malfunction with the
Autonomous Emergency Braking
(AEB) system. Have the vehicle
inspected by an authorized
HYUNDAI dealer.
For more details, refer to
"Autonomous Emergency Braking
(AEB) system" in chapter 5.
Check Driver Attention Alert System (if equipped)
This warning message is displayed if
there is a problem with the Driver
Attention Alert System. Have the
vehicle inspected by an authorized
HYUNDAI dealer.
For more information, refer to
"Driver Attention Alert (DAA)" in
chapter 5.
Check BSD System (if equipped)
This warning message is displayed if
there is a problem with the Blind Spot
Detection (BSD) system. Have the
vehicle inspected by an authorized
HYUNDAI dealer.
For more information, refer to
"Blind Spot Detection (BSD)
System" in chapter 5.
Check Lane Keep Assist System (if equipped)
This warning message is displayed if
there is a problem with the Lane
Keeping Assist System (LKAS).
Have the vehicle inspected by an
authorized HYUNDAI dealer.
For more information, refer to
"Lane Keeping Assist System
(LKAS)" in chapter 5.
Check Active Air Flap System
This warning message is displayed
in the following situations:
- There is a malfunction with the
actuator flap
- There is a malfunction with the actuator air flap controller
- The air flap does not open
When all of the above conditions are
fixed, the warning will disappear.
Check Hybrid system
This warning message is displayed
when there is a problem with the
hybrid control system.
Refrain from driving when the warn-
ing message is displayed.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.

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Convenient features of your vehicle
Check Hybrid system.Turn off engine.
This warning message is displayed
when there is a problem with the
hybrid system. The " " indicator
will blink and a warning chime will
sound until the problem is solved.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
Check Hybrid system. Do notstart engine.
This warning message is displayed
when the hybrid battery power
(SOC) level is low. A warning chime
will sound until the problem is solved.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
Stop vehicle and check powersupply
This warning message is displayed
when a failure occurs in the power
supply system.
In this case, park the vehicle in a
safe location and tow your vehicle to
the nearest authorized HYUNDAI
dealer and have the vehicle inspect-
ed.
Stop vehicle to charge battery
This warning message is displayed
when the hybrid battery power
(SOC) level is low.
In this case, park the vehicle in a
safe location and wait until the hybrid
battery is charged.
You can increase the hybrid battery
charging rate by holding the acceler-
ator pedal to the floor with transmis-
sion in P. The engine will rev high but
it will be limited for charging purpose
when you hold the pedal to the floor.
Refuel to prevent Hybrid batterydamage
This warning message is displayed
when the fuel tank is nearly empty.
You should refill the fuel tank to pre-
vent hybrid battery damage.
Refill inverter coolant
This warning message is displayed
when the inverter coolant is nearly
empty.
You should refill the inverter coolant.
Stop vehicle and check brakes
This warning message is displayed
when a failure occurs in the brake
system.
In this case, park the vehicle in a safe
location and tow your vehicle to the
nearest authorized HYUNDAI dealer
and have the vehicle inspected.