2020 Hyundai Ioniq Plug-in Hybrid warning lights

5-4
Driving your vehicle
Before Entering the Vehicle
• Be sure all windows, outside mir-
ror(s), and outside lights are clean
and unobstructed.
Remove frost, snow, or ice.
Visually check the tires for uneven
wear and damage.
Check under the vehicle for any
sign of leaks.
Be sure there are no obstacles
behind you if you intend to back up.
Before Starting
Make sure the hood, the liftgate,
and the doors are securely closed
and locked.
Adjust the position of the seat and
steering wheel.
Adjust the inside and outside
rearview mirrors.
Verify all the lights work.
Fasten your seatbelt. Check that all
passengers have fastened their
seatbelts.
Check the gauges and indicators in
the instrument panel and the mes-
sages on the instrument display
when the Engine Start/Stop button
is in the ON position.
Check that any items you are car-
rying are stored properly or fas-
tened down securely. CALIFORNIA PROPOSITION 65
WARNING
Engine exhaust and a wide vari-
ety of automobile components
including components found in
the interior furnishings in a
vehicle, contain or emit harmful
chemicals known to the State of
California to cause cancer and
birth defects and reproductive
harm. In addition, certain fluids
contained in vehicles and cer-
tain products of components
contain or emit chemicals
known to the State of California
to cause cancer and birth
defects or other reproductive
harm.WARNING
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5-8
Driving your vehicle
Button Position Action Notice
ON
Press the Engine Start/Stop button while it is
in the ACC position without depressing the
brake pedal.
The warning lights can be checked before
the vehicle is started.Do not leave the Engine Start/Stop button in
the ON position when the vehicle is not in the
ready ( ) mode to prevent the battery from
discharging.
START
To start the vehicle, depress the brake pedal
and press the Engine Start/Stop button with
the shift lever in the P (Park) position.If you press the Engine Start/Stop button with-
out depressing the brake pedal, the vehicle
does not start and the Engine Start/Stop but-
ton changes as follows:
OFF → →
ACC → →
ON → →
OFF
However, the vehicle may start if you depress
the brake pedal within 0.5 second after press-
ing the Engine Start/Stop button from the OFF
position.

5-42
Driving your vehicle
ESC operation
ESC ON condition
When the Engine Start/Stop button
is in the ON position, the ESC and
the ESC OFF indicator lights illumi-
nate for approximately three sec-
onds. After both lights go off, the
ESC is enabled.
When operating
When the ESC is in opera-
tion, the ESC indicator light
blinks:
When you apply your brakes under
conditions which may lock the
wheels, you may hear sounds from
the brakes, or feel a corresponding
sensation in the brake pedal. This
is normal and it means your ESC is
active.
When the ESC activates, the vehi-
cle may not respond to the accel-
erator as it does under routine con-
ditions.
If the Cruise Control was in use
when the ESC activates, the
Cruise Control automatically disen-
gages. The Cruise Control can be
reengaged when the road condi-
tions allow. See "Cruise Control
System" later in this chapter. (if
equipped)
When moving out of the mud or
driving on a slippery road, the
engine RPM (revolutions per
minute) may not increase even if
you press the accelerator pedal
deeply. This is to maintain the sta-
bility and traction of the vehicle and
does not indicate a problem.
ESC OFF condition
To cancel ESC operation :
State 1
Press the ESC OFF button briefly.
The ESC OFF indicator light and/or
message will illuminate. In this state,
the traction control function of ESC
(engine management) is disabled,
but the brake control function of ESC
(braking management) still operates. Never drive too fast for the road
conditions when cornering. The
ESC system will not prevent
accidents.
Excessive speed in turns, abrupt
maneuvers, and hydroplaning
on wet surfaces can result in
severe accidents.
WARNING ■Type A■Type B
OAE056018L/OAEPH059017L

5-43
Driving your vehicle
5

Press and hold the ESC OFF button
continuously for more than 3 sec-
onds. The ESC OFF indicator light
and/or message illuminates and a
warning chime sounds. In this state,
both the traction control function of
ESC (engine management) and the
brake control function of ESC (brak-
ing management) are disabled.
If the Engine Start/Stop button is
placed to the OFF position when
ESC is off, ESC remains off. Upon
restarting the vehicle, ESC will auto-
matically turn on again.
Indicator lights
When the Engine Start/Stop button
is placed to the ON position, the ESC
indicator light illuminates, then goes
off if the ESC system is operating
normally.
The ESC indicator light blinks when-
ever the ESC is operating.
If ESC indicator light stays on, your
vehicle may have a malfunction with
the ESC system. When this warning
light illuminates have your vehicle
checked by an authorized HYUNDAI
dealer as soon as possible.
The ESC OFF indicator light comes
on when ESC is turned off.Driving with wheels and tires with
different sizes may cause the ESC
system to malfunction. Before
replacing tires, make sure all four
tires and wheels are the same
size. Never drive the vehicle with
different sized wheels and tires
installed.NOTICE
■ESC indicator light (blinks)
■ ESC OFF indicator light (comes on)When ESC is blinking, this indi-
cates the ESC is active:
Drive slowly and NEVER attempt
to accelerate. NEVER turn the
ESC off while the ESC indicator
light is blinking or you may lose
control of the vehicle resulting in
an accident.
WARNING ■Type A■Type B
OAE056020L/OAEPH059019L

5-44
Driving your vehicle
ESC OFF usage
When Driving
The ESC OFF mode should only be
used briefly to help free the vehicle if
stuck in snow or mud by temporarily
stopping operation of ESC to main-
tain wheel torque.
To turn ESC off while driving, press
the ESC OFF button while driving on
a flat road surface.To prevent damage to the trans-
mission:
Do not allow wheel(s) of one
axle to spin excessively while
the ESC, ABS, and parking brake
warning lights are displayed.
The repairs would not be cov-
ered by the vehicle warranty.
Reduce engine power and do
not spin the wheel(s) excessive-
ly while these lights are dis-
played.
When operating the vehicle on a
dynamometer, make sure the
ESC is turned off (ESC OFF light
illuminated).
Information
Turning the ESC off does not affect
ABS or standard brake system opera-
tion.
Vehicle Stability Management
(VSM)
The Vehicle Stability Management
(VSM) is a function of the Electronic
Stability Control (ESC) system. It
helps the vehicle stay stable when
accelerating or braking suddenly on
wet, slippery and rough roads where
traction over the four tires can sud-
denly become uneven.
i
NOTICE
Take the following precautions
when using the Vehicle Stability
Management (VSM):
ALWAYS check the speed and
the distance to the vehicle
ahead. The VSM is not a sub-
stitute for safe driving prac-
tices.
Never drive too fast for the
road conditions. The VSM sys-
tem will not prevent acci-
dents. Excessive speed in bad
weather, slippery and uneven
roads can result in severe
accidents.
WARNING

6-2
The hazard warning flasher serves
as a warning to other drivers to exer-
cise extreme caution when approach-
ing, overtaking, or passing your vehi-
cle.
It should be used whenever emer-
gency repairs are being made or
when the vehicle is stopped near the
edge of a roadway.To turn the hazard warning flasher
on or off, press the hazard warning
flasher button both the left and right.
The button is located in the center
fascia panel. All turn signal lights will
flash simultaneously.
• The hazard warning flasher oper-
ates whether your vehicle is run-
ning or not.
The turn signals do not work when
the hazard flasher is on.
If the Engine Stalls While
Driving
Reduce your speed gradually,
keeping a straight line. Move cau-
tiously off the road to a safe place.
Turn on your hazard warning flash-
er.
Try to start the hybrid system
again. If your vehicle will not start,
contact an authorized HYUNDAI
dealer or seek other qualified
assistance.
If the Vehicle Stalls at a
Crossroad or Crossing
If the vehicle stalls at a crossroad or
crossing, if safe to do so, move the
shift lever to the N (Neutral) position
and then push the vehicle to a safe
location.
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What to do in an emergency
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OAEPH048016

6-12
What to do in an emergency
If your engine coolant temperature
gauge indicates overheating, you
experience a loss of power, or hear
loud pinging or knocking, the engine
may be overheating. If this happens,
you should:
1. Turn ON the hazard warning flash-
er, pull off the road and stop as
soon as it is safe to do so.
2. Place the shift lever in P (Park)
and set the parking brake.
3. Make sure that there is no hot
steam gushing out of the engine
compartment. When it is safe to
do so, open the engine compart-
ment, and check the water-pump
connector. When the water-pump
connector is disconnected, stop
the engine, re-connect the water-
pump connector, and then re-start
the engine.
4. Set the temperature and the air
flow to the maximum, and turn ON
the air conditioner.5. When the Service warning light
( ) illuminates on the instru-
ment cluster, immediately stop the
engine, and contact an authorized
HYUNDAI dealer. When the
engine warning light ( ) illumi-
nates, or when the coolant or hot
steams gush out of the engine
compartment, leave the engine
compartment opened, while run-
ning the engine. This is to ventilate
the engine compartment and to
cool down the engine.
6. Check the coolant temperature
gauge on the instrument cluster to
make sure the coolant temperature
is sufficiently cooled down. Check
the coolant level. When it is insuffi-
cient, check its connection with the
radiator, the heater hose, and the
water pump for any leakage. When
there is no leakage, add the
coolant. However, if the problems
persists, such as the illumination of
the warning lights, leakages, or the
cooling-fan malfunction, which may
overheat the engine, immediately
stop the engine, and have your
vehicle checked by an authorized
HYUNDAI dealer.
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The electric motor for
the cooling fan may
continue to operate
or start up when the
engine is not running
and can cause serious injury.
Keep hands, clothing and tools
away from the rotating fan
blades of the cooling fan.
WARNING

7-8
Maintenance
At least monthly:
Check coolant level in the engine
coolant reservoir.
Check the operation of all exterior
lights, including the brake lights,
turn signals and hazard warning
flashers.
Check the inflation pressures of all
tires including the spare for tires
that are worn, show uneven wear,
or are damaged.
Check for loose wheel lug nuts.
At least twice a year:
(i.e., every Spring and Fall)
Check radiator, heater and air con-
ditioning hoses for leaks or dam-
age.
Check windshield washer spray
and wiper operation. Clean wiper
blades with a clean cloth damp-
ened with washer fluid.
Check headlamp alignment.
Check muffler, exhaust pipes,
shields and clamps.
Check the seat belts for wear and
function.
At least once a year:
Clean body and door drain holes.
Lubricate door hinges and hood
hinges.
Lubricate door and hood locks and
latches.
Lubricate door rubber weather
strips.
Lubricate door checker.
Check the air conditioning system.
Inspect and lubricate transmission
linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.Follow Normal Maintenance Schedule
if the vehicle is usually operated where
none of the following conditions apply.
If any of the following conditions apply,
you must follow the Maintenance
Under Severe Usage Conditions.
Repeated short distance driving.
Driving in dusty conditions or
sandy areas.
Extensive use of brakes.
Driving in areas where salt or other
corrosive materials are used.
Driving on rough or muddy roads.
Driving in mountainous areas.
Extended periods of idling or low
speed operation.
Driving for a prolonged period in
cold temperatures and/or extreme-
ly humid climates.
More than 50% driving in heavy
city traffic during hot weather
above 90°F (32°C).
For additional information or assis-
tance see your authorized HYUNDAI
dealer.
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