warning light Hyundai Ioniq Hybrid 2018 Service Manual

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Convenient features of your vehicle
3
Seat Belt Warning Light
This warning light informs the driver
that the seat belt is not fastened.
For more information, refer to
“Seat Belts” in chapter 2.
Parking Brake & Brake
Fluid Warning Light
This warning light illuminates:
• Once you turn the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3
seconds
- 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 illuminates
with the parking brake released, it
indicates the brake fluid level in
the reservoir is low.
• When the regenerative brake does
not operate.
If the brake fluid level in the reser-
voir is low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. With the engine stopped, check the
brake fluid level immediately and
add fluid as required (For more
information, refer to “Brake
Fluid” in chapter 7). After adding
brake fluid, check all brake compo-
nents 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. We recommend that you
have the vehicle inspected by an
authorized 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 should fail.
With only one of the dual systems
working, more than normal pedal
travel and greater pedal pressure is
required to stop the vehicle.
(red color)

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Convenient features of your vehicle
Also, the vehicle will not stop in as
short a distance with only a portion
of the brake system working.
If the brakes fail while you are driv-
ing, shift to a lower gear for addition-
al engine braking and stop the vehi-
cle as soon as it is safe to do so.
Regenerative Brake
Warning Light
This warning light illuminates :
When the regenerative brake does
not operate and the brake does not
perform well. This causes the Brake
Warning light (red) and Regenerative
Brake Warning Light (yellow) to illu-
minate simultaneously.
In this case, drive safely and we rec-
ommend that you have your vehicle
inspected by an authorized HYUNDAI
dealer.
The operation of the brake pedal may
be more difficult than normal and the
braking distance can increase.
Anti-lock Brake System
(ABS) Warning Light
This warning light illuminates:
• Once you turn the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3
seconds and then goes off.
• When there is a malfunction with
the ABS (The normal braking sys-
tem will still be operational without
the assistance of the anti-lock
brake system).
In this case, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer.
Parking Brake & Brake Fluid
Warning Light
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, it
indicates that the brake fluid
level is low.
In this case, we recommend
that you have the vehicle
inspected by an authorized
HYUNDAI dealer.
WARNING

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Convenient features of your vehicle
3
Electronic Brake Force
Distribution (EBD)
System Warning Light
These two warning lights illuminate
at the same time while driving:
• When the ABS and regular brake
system may not work normally.
In this case, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer.Information - Electronic
Brake Force Distribution
(EBD) System Warning Light
When the ABS Warning Light is on or
both ABS and Parking Brake & Brake
Fluid Warning Lights are on, the
speedometer, odometer, or tripmeter
may not work. Also, the EPS Warning
Light may illuminate and the steering
effort may increase or decrease.
In this case, we recommend you have
the vehicle inspected by an authorized
HYUNDAI dealer as soon as possible.
Electric Power Steering
(EPS) Warning Light
This warning light illuminates:
• Once you turn the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3
seconds and then goes off.
• When there is a malfunction with
the EPS.
In this case, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer.
i
Electronic Brake Force
Distribution (EBD) System
Warning Light
When both ABS and Parking
Brake & Brake Fluid Warning
Lights are on, the brake system
will not work normally and you
may experience an unexpected
and dangerous situation during
sudden braking.
(Continued)
WARNING
(Continued)
In this case, avoid high speed
driving and abrupt braking.
We recommend you have the
vehicle inspected by an author-
ized HYUNDAI dealer as soon
as possible.

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Convenient features of your vehicle
Malfunction Indicator
Lamp (MIL)
This warning light illuminates:
• Once you turn the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3
seconds and then goes off.
• When there is a malfunction with
the emission control system.
In this case, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer.
Driving with the Malfunction Indicator
Lamp (MIL) on may cause damage to
the emission control system which
could affect drivability and/or fuel
economy.
If the Malfunction Indicator Lamp
(MIL) illuminates, potential catalyt-
ic converter damage is possible
which could result in loss of
engine power.
In this case, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer as
soon as possible.
Charging System
Warning Light
When this warning light illuminates
while running the engine, the battery
is not being charged. Immediately
turn OFF all electrical accessories.
Try not to use electrically operated
controls, such as the power windows.
Keep running the engine.
We recommend that you have the
vehicle inspected by an authorized
HYUNDAI dealer as soon as possible.
NOTICE
NOTICE

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Convenient features of your vehicle
3
Engine Oil Pressure
Warning Light
This warning light illuminates:
• When the engine oil pressure is low.
If the engine oil pressure is low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. Turn the engine off and check the
engine oil level (For more informa-
tion, refer to “Engine Oil” in chap-
ter 7). If the level is low, add oil as
required.
If the warning light remains on
after adding oil or if oil is not avail-
able, we recommend that you
have the vehicle inspected by an
authorized HYUNDAI dealer as
soon as possible.• If the engine does not stop
immediately after the Engine Oil
Pressure Warning Light is illumi-
nated, severe damage could
result.
• If the warning light stays on
while the engine is running, it
indicates that there may be seri-
ous engine damage or malfunc-
tion. In this case:
1. Stop the vehicle as soon as it
is safe to do so.
2. Turn off the engine and check
the oil level. If the oil level is
low, fill the engine oil to the
proper level.
3. Start the engine again. If the
warning light stays on after the
engine is started, turn the
engine off immediately. In this
case, we recommend that you
have the 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 "0 or E" can cause the
engine to misfire and damage the
catalytic converter (if equipped).
NOTICE
NOTICE

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Convenient features of your vehicle
Engine Coolant
Temperature Warning
Light
This warning light illuminates:
• When the engine coolant temper-
ature is above 120°C (248°F). This
means that the engine is overheat-
ed and may be damaged.
If your vehicle is overheated, refer
to “Overheating” in chapter 6.
Overspeed Warning
Light (if equipped)
This warning light blinks:
• When you drive the vehicle more
than 120 km/h.
- This is to prevent you from driving
your vehicle with overspeed.
- The overspeed warning chime
also sounds for approximately 5
seconds.
Master Warning Light
This indicator light illuminates:
• When there is a malfunction in oper-
ation in any of the following systems:
- Low washer fluid (if equipped)
- Exterior lamp malfunction
- Blind Spot Detection (BSD) mal-
function (if equipped)
- Autonomous Emergency Braking
(AEB) malfunction (if equipped)
- Smart cruise control malfunction
(if equipped)
- Tire Pressure Monitoring System
(TPMS, if equipped)
- Service reminder
To identify the details of the warning,
look at the LCD display.
Low Tire Pressure
Warning Light
(if equipped)
This warning light illuminates:
• Once you turn the ignition switch or
Engine Start/Stop button to the ON
position.
- It illuminates for approximately 3
seconds and then goes off.
• When one or more of your tires are
significantly underinflated.
For more information, refer to
“Tire Pressure Monitoring System
(TPMS)” in chapter 6.
120km/h

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Convenient features of your vehicle
3
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, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer as
soon as possible.
For more information, refer to
“Tire Pressure Monitoring System
(TPMS)” in chapter 6.
Electronic Stability
Control (ESC) Indicator
Light
This indicator light illuminates:
• Once you turn the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3
seconds and then goes off.
• When there is a malfunction with
the ESC system.
In this case, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer.
This indicator light blinks:
• While the ESC is operating.
For more information, refer to
“Electronic Stability Control (ESC)”
in chapter 5.
Electronic Stability
Control (ESC) OFF
Indicator Light
This indicator light illuminates:
• Once you turn the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately
3 seconds 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.
Safe Stopping
•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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Convenient features of your vehicle
3
Turn Signal Indicator
Light
This indicator light blinks:
• When you operate the turn signals.
If any of the following occur, there may
be a malfunction with the turn signal
system.
- The turn signal indicator light illumi-
nates but does not blink
- The turn signal indicator light blinks
rapidly
- The turn signal indicator light does
not illuminate at all
If any of these conditions occur, we
recommend that you have your vehi-
cle inspected by an authorized
HYUNDAI dealer.
Low Beam Indicator
Light (if equipped)
This indicator light illuminates:
• When the headlights are on.
High Beam Indicator
Light
This indicator light illuminates:
• When the headlamps are on and in
the high beam position.
• When the turn signal lever is pulled
into the Flash-to-Pass position.
Light ON Indicator
Light
This indicator light illuminates:
• When the tail lights or headlamps
are on.
Rear Fog Indicator
Light (if equipped)
This indicator light illuminates:
• When the rear fog lights are on.
Exterior Light Warning
Light (if equipped)
This warning light illuminates:
• When one of the exterior bulbs
(headlamp, tail lamp, fog lamp, etc.)
is not operating properly. One of the
bulbs may need to be replaced.
Information
Make sure to replace the burned out
bulb with a new one of the same
wattage rating.
i

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Convenient features of your vehicle
LED Headlamp Warning
Light (if equipped)
This warning light illuminates:
• When you turn the ignition switch
or the Engine Start/Stop button to
the ON position.
• When there is a malfunction with
the LED headlamp.
In this case, we recommend that you
have the vehicle inspected by an
authorized HYUNDAI dealer.
This warning light blinks:
When there is a malfunction with a
LED headlamp related part.
In this case, we recommend that you
have the vehicle inspected by an
authorized HYUNDAI dealer.
Continuous driving with the LED
Headlamp Warning Light on or
blinking can reduce LED head-
lamp life.
Cruise
Indicator Light
(if equipped)
This indicator light illuminates:
• When the cruise control system is
enabled.
For more information, refer to
“Cruise Control System” in chap-
ter 5.
Cruise SET Indicator
Light (if equipped)
This indicator light illuminates:
• When the cruise control speed is
set.
For more information, refer to
“Cruise Control System” in chap-
ter 5.
Speed Limiter Indicator
Light (if equipped)
This indicator light illuminates
when:
• When the speed limiter is enabled.
NOTICE
■Type A■Type B

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Convenient features of your vehicle
3
SPORT Mode Indicator
Light
This indicator light illuminates
• When the driver moves the shift
lever to S (Sport).
For more information, refer to
"Dual Clutch Transmission" in
chapter 5.
ECO Mode Indicator
Light
This indicator light illuminates:
• When the driver moves the shift
lever to D (Drive).
For more information, refer to
"Dual Clutch Transmission" in
chapter 5.
Autonomous
Emergency Braking
(AEB) Warning Light
(if equipped)
This warning light illuminates :
• When the AEB system is turned
off.
• When the radar sensor or cover is
blocked with dirt or snow. Check
the sensor and cover and clean
them by using a soft cloth.
• When there is a malfunction with
AEB. In this case, we recommend
that you have your vehicle inspect-
ed by an authorized dealer of
HYUNDAI.
Lane Keeping Assist
System (LKAS)
Indicator Light
(if equipped)
This indicator light illuminates:
• [Green] When the system operat-
ing conditions are satisfied for
LKAS.
• [White] When the system operat-
ing conditions are not satisfied or
when the sensor does not detect
the lane line.
• [Yellow] When there is a malfunc-
tion with the lane keeping assist
system.
In this case, we recommend that
you have your vehicle inspected
by to an authorized dealer of
HYUNDAI.
For more information, refer to “Lane
Keeping Assist System (LKAS)” in
chapter 5.