2021 HYUNDAI TUCSON HYBRID warning light

04
4-11
Dual-diagonal braking system
Your vehicle is equipped with dual-
diagonal braking system. This means you
still have braking on two wheels even if
one of the dual systems 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.
Also, the vehicle will not stop in as short
a distance with only a portion of the
brake system working.
If you experience a malfunction with
the brake system while driving, attempt
to slow your vehicle by coasting or
by using engine braking. You may be
able to reduce your vehicle speed by
manually downshifting to a lower gear.
Use Manual Shift Mode using either the
gear shift lever or the paddle shifters (if
equipped) to shift to a lower gear.
WARNING
Parking Brake & Brake Fluid Warning
Light
Driving the vehicle with a warning light
ON is dangerous. If the Parking Brake
warning light illuminates with the
parking brake released, it indicates that
the brake fluid level is low.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
Regenerative brake warning
light
(yellow)
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 illuminate
simultaneously.
If this occurs, drive safely and we
recommend that you have the vehicle
inspected by an authorized HYUNDAI
dealer.
The operation of the brake pedal may
be more difficult than normal and the
braking distance may increase.
Anti-lock Brake System (ABS)
warning light
This warning light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
-The ABS warning light illuminates
for about 3 seconds and then goes
off.
• Whenever there is a malfunction with
the ABS.
Note that the hydraulic braking
system will still be operational even
if there is a malfunction with the
ABS. If the ABS warning light remains
illuminated while driving, have the
vehicle inspected by an authorized
HYUNDAI dealer.

Instrument cluster
4-12
Electronic Brake Force
Distribution (EBD) system
warning light
When the ABS warning and Parking Brake warning lights are on
simultaneously, it may indicate a
problem with the Electronic Brake Force
Distribution system.
If both the ABS warning light and the
Parking Brake warning light remain
illuminated while driving, have the
vehicle inspected by an authorized
HYUNDAI dealer.
WARNING
Electronic Brake Force Distribution
(EBD) System Warning Light
When both ABS and Parking Brake
warning lights are on, the brake
system will not work normally and you
may experience an unexpected and
dangerous situation during sudden
braking.
If this occurs, avoid high speed driving
and abrupt braking.
We recommend that you have the
vehicle inspected by an authorized
HYUNDAI dealer as soon as possible.
Information - Electronic Brake
Force Distribution (EBD)
system warning light
When the ABS warning light is on or both
ABS and Parking Brake 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.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer as soon as
possible.
Electric Power Steering (EPS)
warning light
This warning light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
-The electric power steering Warning
light illuminates for about 3 seconds
and then goes off.
• Whenever there is a malfunction with
the EPS.
If the EPS warning light remains
illuminated while driving, have the
vehicle inspected by an authorized
HYUNDAI dealer.

04
4-13
Malfunction Indicator Lamp
(MIL)
This indicator light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
-The malfunction indicator light
illuminates for about 3 seconds and
then goes off.
• Whenever there is a malfunction with
either the emission control system or
the engine or the vehicle powertrain.
If the MIL warning light remains
illuminated while driving, have the
vehicle inspected by an authorized
HYUNDAI dealer.
• If the enhanced engine protection
system becomes activated due to lack
of engine oil, engine power will be
limited. If such condition continues
repeatedly, the Malfunction Indicator
Lamp will illuminate.
NOTICE
Driving with the Malfunction Indicator
Lamp (MIL) on may cause damage to
the emission control system which
could affect drivability and/or fuel
economy.
NOTICE
If the Malfunction Indicator Lamp
(MIL) illuminates, potential catalytic
converter damage is possible which
could result in loss of engine power.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer as soon as
possible.
NOTICE
If the oil pressure lowers due to
insufficient engine oil, etc., the engine
oil pressure warning light turns on
and an enhanced engine protection
system that limits the engine's power
is activated. After that, engine warning
light turns on if driving repeatedly and
continuously.

Instrument cluster
4-14
Electronic Parking Brake
(EPB) warning light
This warning light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
-The EPB warning light illuminates
for about 3 seconds and then goes
off.
• Whenever there is a malfunction with
the EPB.
If the EPB warning light remains
illuminated while driving, have the
vehicle inspected by an authorized
HYUNDAI dealer.
Information
The Electronic Parking Brake (EPB)
warning light may illuminate when
the Electronic Stability Control (ESC)
indicator light comes on to indicate that
the ESC is not working properly (This
does not indicate malfunction of the EPB).
AUTO HOLD indicator light
This indicator light illuminates:
• [White] When you activate the auto
hold system by pressing the AUTO
HOLD switch.
• [Green] When you stop the vehicle
completely by depressing the brake
pedal with the Auto Hold system
activated.
• [Yellow] Whenever there is a
malfunction with the Auto Hold
system.
If the AUTO HOLD indicator light
remains YELLOW while driving, have
the vehicle inspected by an authorized
HYUNDAI dealer.
For more details, refer to “Auto Hold”
section in chapter 6.
Charging system warning
light
This warning light illuminates:
When the battery is not being charged
while the engine is running. Immediately
turn OFF all electrical accessories. Try
not to use electrically operated controls,
such as the power windows. Keep the
engine running.
We recommend that you have the
vehicle inspected by an authorized
HYUNDAI dealer as soon as possible.
Engine oil pressure warning
light
If the oil pressure lowers due to
insufficient engine oil, etc., the engine oil
pressure warning light turns on and an
enhanced engine protection system that
limits the engine’s power is activated.
If this warning light turns on while
driving, drive carefully to the side of the
road and stop the vehicle, check the
engine oil level, and add if insufficient.
If the engine oil isn’t insufficient, or if
the warning light does not turn off even
after adding, we recommend to visit an
authorized HYUNDAI dealer.
Driving with the warning light on may
cause engine failure.
à When oil pressure is restored to an
optimal level, the oil pressure warning
light and the protection system that
limits engine power will turn off. Even
if the oil pressure returns to normal,
check the engine once again in a safe
place.

04
4-15
NOTICE
• If the engine does not stop
immediately after the Engine Oil
Pressure warning light is illuminated,
severe damage could result.
• If the warning light stays on while the
engine is running, it indicates that
there may be serious engine damage
or malfunction. 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. If this occurs,
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.
NOTICE
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.
Service warning light
This warning light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
-The service warning light illuminates
for approximately 3 seconds and
then turns off when all checks have
been performed.
• When there is a problem with the
hybrid vehicle control system or
hardware.
When the warning light illuminates
while driving, or does not go OFF after
starting the vehicle, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
Exhaust system (GPF)
warning light
• This warning light illuminates, when
accumulated soot reaches a certain
amount.
• When this warning light illuminates, it
may turn off after driving the vehicle
at more than 50 mph (80 km/h) for
about 30 minutes (above 3rd gear
with 1500 ~ 4000 engine rpm).
If this warning light blinks in spite
of the procedure (at this time LCD
warning message will be displayed),
we recommend that you have the
GPF system checked by an authorized
HYUNDAI dealer.
NOTICE
If you continue to drive with the GPF
warning light blinking for a long time,
the GPF system can be damaged and
fuel consumption can worsen.

Instrument cluster
4-16
Master warning light
This warning light illuminates:
When there is a malfunction in operation
in any of the following systems:
-Forward Collision-Avoidance Assist
malfunction (if equipped)
-Forward Collision-Avoidance Assist
radar blocked (if equipped)
-Blind-Spot Collision Warning
malfunction (if equipped)
-Blind-Spot Collision Warning radar
blocked (if equipped)
-LED headlamp malfunction (if
equipped)
-High Beam Assist malfunction (if
equipped)
-Smart Cruise Control malfunction (if
equipped)
-Smart Cruise Control radar blocked (if
equipped)
-Tire Pressure Monitoring System
(TPMS) malfunction
To identify the details of the warning,
look at the LCD display.
Low tire pressure warning
light
This warning light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- The low tire pressure warning light
illuminates for approximately 3
seconds and then goes off.
• When one or more of your tires are
significantly underinflated. (The
location of the underinflated tires are
displayed on the LCD display.)
For more details, refer to “Tire Pressure
Monitoring System (TPMS)” section in
chapter 8.
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.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer as soon as
possible.
For more details, refer to “Tire Pressure
Monitoring System (TPMS)” section in
chapter 8.
WARNING
Safe Stopping
• The TPMS cannot alert you to severe
and sudden tire damage caused by
external factors.
• If you notice any vehicle instability,
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.

04
4-17
Forward Safety warning light
This warning light illuminates:
• When you set the Engine Start/Stop
button to the ON position.
-The Forward Safety warning light
illuminates for approximately 3
seconds and then goes off.
• Whenever there is a malfunction with
Forward Collision-Avoidance Assist.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
For more details, refer to “Forward
Collision-Avoidance Assist (FCA)”
section in chapter 7.
Lane Safety indicator light (if
equipped)
This indicator light illuminates:
• [Green] When the system operating
conditions are satisfied.
• [White] When the system operating
conditions are not satisfied.
• [Yellow] Whenever there is a
malfunction with Lane Keeping Assist.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
For more details, refer to “Lane Keeping
Assist (LKA)” section in chapter 7.
All Wheel Drive (AWD)
warning light
This warning light illuminates:
Whenever there is a malfunction with the
AWD system.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
For more details, refer to "All Wheel
Drive (AWD)" section in chapter 6.
All Wheel Drive (AWD) LOCK
indicator light
This indicator light illuminates:
• Once you set the ignition switch or
Engine Start/Stop Button to the ON
position.
- It illuminates for approximately 3
seconds and then goes off.
• When you select AWD Lock mode by
pressing the AWD LOCK button.
-The AWD LOCK mode is to increase
the drive power when driving on
wet pavement, snow covered roads
and/or off-road.
NOTICE
Do not use AWD LOCK mode on dry
paved roads or highway, it can cause
noise, vibration or damage of AWD
related parts.

Instrument cluster
4-18
LED headlight warning light
This warning light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
-The LED headlight warning light
illuminates for approximately 3
seconds and then goes off.
• Whenever there is a malfunction with
the LED headlight.
If the LED headlight warning light
remains illuminated while driving,
have the vehicle inspected by an
authorized HYUNDAI dealer.
This warning light blinks:
Whenever there is a malfunction with a
LED headlight related part.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
NOTICE
Continuous driving with the LED
Headlight warning light on or blinking
can reduce LED headlight life.
Icy road warning light
This warning light is to warn the driver
the road may be icy.
When the temperature on the outside
temperature gauge is approximately
below 40°F (4°C), the Icy Road warning
light and Outside Temperature Gauge
blinks and then illuminates. Also, the
warning chime sounds 1 time.
You can activate or deactivate Icy Road
Warning function from the User Settings
menu in the cluster LCD display.
- Setup → Vehicle Settings → Cluster →
Icy Road Warning
Information
If the Icy Road warning light appears
while driving, you should drive more
attentively and safely refraining from
over-speeding, rapid acceleration, sudden
braking or sharp turning, etc.
Ready indicator
This indicator illuminates:
When the vehicle is ready to be driven.
-ON : Normal driving is possible.
-OFF : Normal driving is not possible,
or a problem has occurred.
-Blinking : Emergency driving.
When the ready indicator goes OFF
or blinks, there is a problem with the
system. If this occurs, we recommend
that you have the vehicle inspected by an
authorized HYUNDAI dealer.