check engine HYUNDAI SONATA HYBRID 2019 Owner's Manual

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Convenient features of your vehicle
3
Parking Brake & BrakeFluid Warning Light
This warning light illuminates:
When the Engine Start/Stop button is in the ON position
- It illuminates for approximately 3seconds and then goes off.
- It remains on if the parking brake is applied.
When the parking brake is applied.
When the brake fluid level in the reservoir is low.
- If the warning light illuminateswith the parking brake released, it
indicates the brake fluid level in
reservoir is low.
When the regenerative brake does not operate.
When only one of the dual system is working, the stopping distancewill be increased.
If the brake fluid level in the reser-
voir is low:
1. Drive carefully to the nearest safe location and stop your vehicle.
2. Stop the vehicle, immediately check the brake fluid level and add
fluid, if necessary (For more
information, refer to "Brake
Fluid" in the chapter 7). After
adding brake fluid, check all brake
components for fluid leaks. If a
brake fluid leak is found, or if the
warning light remains on, or if the
brakes do not operate properly, do
not drive the vehicle. Have the
vehicle inspected by an author-
ized HYUNDAI dealer.
Dual-diagonal braking system
Your vehicle is equipped with dual-
diagonal braking systems. This
means you still have braking on two
wheels even if one of the dual sys-
tems fails. With only one of the dual systems
working, longer pedal travel and
greater pedal pressure is required. If the brakes fail, while driving, shift
to a lower gear for additional engine
braking and stop the vehicle as soon
as it is safe to do so.
(red color)
Driving the vehicle with a warn-
ing light ON is dangerous. If the
Parking Brake & Brake Fluid
Warning Light illuminates with
the parking brake released, itindicates that the brake fluid
level is low.
In this case, have the vehicle
inspected by an authorized
HYUNDAI dealer.
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Convenient features of your vehicle
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Engine Oil PressureWarning Light
This warning light illuminates:
When the Engine Start/Stop button is in the ON position.
- It remains on until the engine isstarted.
When the engine oil pressure is low.
When the engine oil pressure is low,
follow the below procedures:
1. Carefully drive to the nearest safe location and stop your vehicle.
2. Turn OFF the engine and check the engine oil level (For more
information, refer to the
"Engine Oil" in the chapter 7) .If
the level is low, add engine oil.
When the warning light remains ON after adding engine oil and
restarting the engine, or when
engine oil refilling is unavailable,
turn OFF the engine. These indi-
cate a mechanical problem, which
needs to be repaired before driv-ing. In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
When the Engine Oil Pressure
Warning Light illuminates, turn
OFF the engine, and check the
engine oil level, in an attempt to
prevent severe engine damage.These should be done as soon as
it is safe to do so. When the oil
level is low, add the engine oil to
the proper level and start the
engine again. When the light stays
ON, while running the engine,
immediately turn OFF the engine.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
Low Fuel Level Warning Light
This warning light illuminates:
When the fuel tank is nearly empty.
Add fuel as soon as possible.
Driving with the Low Fuel Level warning light on or with the fuel
level below "E (Empty)" maycause the engine to misfire and
damage the catalytic converter.
Driving the vehicle in EV mode after fuel runs out may damage
the hybrid battery.
NOTICE
NOTICE

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Convenient features of your vehicle
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 displayed.
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.
Sunroof Open (if equipped)
This warning is displayed when the
sunroof is opened, after turning OFF
the vehicle.
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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
Engine overheated
This warning message is displayed
when the engine coolant tempera-
ture is above 120°C (248°F). 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.
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Convenient features of your vehicle
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.
Check Hybrid system.Turn engine off.
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 powersupply 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.
Park with engine On 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.

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Convenient features of your vehicle
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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 regen.
brakes
This warning message is displayed
when a failure occurs in the brakesystem.
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.
Check regenerative brakes
This warning message is displayed
when the brake performance is low
or the regenerative brake does not
work properly due to a failure in the
brake system.
In this case, it may take longer for the
brake pedal to operate and the brak-
ing distance may become longer.
Check Virtual Engine SoundSystem
This message is displayed when
there is a problem with the VirtualEngine Sound System (VESS).
In this case, have your vehicle
inspected by an authorized HYUNDAI
dealer.
Coasting guide (if equipped)
A chime will sound and the coasting
guide indicator will blink four times to
inform the driver when to take the
foot off from the accelerator by antic-
ipating a decelerating event* based
on the analysis of driving routes and
road conditions of the navigation. It
encourages the driver to remove foot
from the pedal and allow coasting
down the road with EV motor only.
This helps prevent unnecessary fuelconsumption and increases fuel effi-
ciency.

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Information
Coasting guide is only a supplemental
system to assist with fuel-efficient
driving. Thus, the operating condi-
tions may be different in accordance
with traffic/road conditions (i.e. driv-
ing in a traffic jam, driving on a slope,
driving on a curve). Thus, take the
actual driving conditions into consid-
eration, such as distances from the
vehicles ahead/behind, while referring
to the coasting guide system as guid-
ance.
Unplugging vehicle to start (Plug-in hybrid)
The message is displayed when you
start the engine without unplugging
the charging cable. Unplug the
charging cable, and then start the
vehicle.
Remaining time to fully chargethe battery (Plug-in hybrid)
The message is displayed to notifythe remaining time to fully charge the
battery.
2WD Certification Mode (Plug-in hybrid)
The message is displayed when the
2WD vehicle enters the fuel econo-
my certification test mode.
Wait until fuel door opens (Plug-in hybrid)
The message is displayed when youattempt to open the fuel filler door
with the fuel tank pressurized. Wait
until the fuel tank is depressurized.
Information
 It may take up to 20 seconds to open fuel filler door.
 When the fuel filler door is frozen and does not open after 20 seconds
at freezing temperature, slightly tap
the fuel filler door and then attempt
to open it.
Fuel door open
(Plug-in hybrid)
The message is displayed when thefuel filler door opens after the fuel
tank is depressurized. If this mes-
sage is displayed, you can refuel thefuel tank.
Check fuel door(Plug-in hybrid)
The message is displayed when the
vehicle is driven with the fuel filler
door opened. Close the fuel filler
door and then start driving.
Park with engine
On to charge battery (Plug-in hybrid)
The message is displayed when thecharging connector is plugged with
the shift lever in R (Reverse), N
(Neutral) or D (Drive). Move the shift
lever to P (Park) and re-start the
charging process.
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Convenient features of your vehicle
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AFLS (Adaptive Front LightingSystem) a.k.a. DBL (Dynamic
Bending Light) (if equipped)
Adaptive front lighting system uses
the steering angle and vehicle speed
to help maximize your field of vision
by swiveling and leveling the head-
lamp.
Change the switch to the AUTO posi-
tion when the engine is running. The
adaptive front lighting system will
operate when the headlamps are
ON. To turn off the AFLS, change the
switch to other positions. After turn-
ing the AFLS off, headlamp swiveling
no longer occurs, but the leveling will
operate continuously. If the AFLS malfunction indicator
comes on, the AFLS is not working
properly. Drive to the nearest safe
location and restart the engine. If the
indicator continuously remains on,
have the system checked by an
authorized HYUNDAI dealer.
Daytime running light (DRL)
The Daytime Running Lights (DRL)
can help for others to see the front of
your vehicle during the day, especial-
ly after dawn and before sunset.
The DRL will turn off when:
1. The light switch is in the headlamp
position, including the operation
that the headlamp is turned on
automatically in the AUTO lightposition.
2. The parking brake is applied.
3. The engine is turned off.
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Convenient features of your vehicle
Wireless Cellular Phone
Charging System (if equipped)
There is a wireless cellular phone
charging inside the front console.
The system is available when all doors are closed, and when the
Engine Start/Stop button is in the
ACC/ON position.
To charge a cellular phone
The wireless cellular phone charging
system charges only the Qi-enabled
cellular phones ( ). Read the label
on the cellular phone accessory
cover or visit your cellular phone
manufacturer's website to check
whether your cellular phone supports
the Qi technology.
The wireless charging process starts
when you put a Qi-enabled cellularphone on the wireless charging unit.1. Remove other items, including the
smart key, from the wireless charg-
ing unit. If not, the wireless charg-
ing process may be interrupted.
2. The indicator illuminates in orange during the charging process. The
indicator color changes to green,when the charging process iscompleted.
3. You can turn ON or OFF the wire- less charging function in the user
settings mode on the instrument
cluster. (For further information,
refer to the "LCD Modes" in this
chapter.)
IINN TTEERR IIOO RR FF EE AA TTUU RREESS
3
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Driving your vehicle
5
Carbon monoxide (CO) gas is toxic. Breathing CO can cause unconsciousness and death.
Engine exhaust contains carbon monoxide which cannot be seen or smelled.
Do not inhale engine exhaust.
If at any time you smell engine exhaust inside the vehicle, open the windows immediately. Exposure to CO can cause
unconsciousness and death by asphyxiation.
Be sure the exhaust system does not leak.
The exhaust system should be checked whenever the vehicle is raised to change the oil or for any other purpose. If
you hear a change in the sound of the exhaust or if you drive over something that strikes the underneath side of the
vehicle, have the exhaust system checked as soon as possible by an authorized HYUNDAI dealer.
Do not run the engine in an enclosed area.
Letting the engine idle in your garage, even with the garage door open, is a hazardous practice. Run the engine only
long enough to start the engine and to move the vehicle out of the garage.
Avoid idling the engine for prolonged periods with people inside the vehicle.
If it is necessary to idle the engine for a prolonged period with people inside the vehicle , be sure to do so only in an
open area with the air intake set at "Fresh" and fan control set to high so fresh air is drawn into the interior.
Keep the air intakes clear.
To assure proper operation of the ventilation system, keep the ventilation air intakes located in front of the windshield
clear of snow, ice, leaves, or other obstructions.
If you must drive with the trunk open:
Close all windows.
Open instrument panel air vents.
Set the air intake control at "Fresh", the air flow control at "Floor" or "Face", and the fan control set to high.
WARNING