2021 HYUNDAI SANTA FE HYBRID start stop button

04
4-15
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
(if equipped)
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.
4 Wheel Drive (4WD) warning
light (if equipped)
This warning light illuminates:
Whenever there is a malfunction with the
4WD system.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
For more details, refer to "4 Wheel Drive
(4WD)" section in chapter 6.
4 Wheel Drive (4WD) LOCK
indicator light (if equipped)
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 4WD Lock mode by
pressing the 4WD LOCK button.
-The 4WD LOCK mode is to increase
the drive power when driving on
wet pavement, snow covered roads
and/or off-road.
NOTICE
Do not use 4WD LOCK mode on dry
paved roads or highway, it can cause
noise, vibration or damage of 4WD
related parts.

Instrument cluster
4-18
LED headlight warning light
(if equipped)
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 this occurs, we recommend that
you 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
(if equipped)
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.

04
4-19
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.
EV mode indicator
This indicator illuminates:
When the vehicle is driven by the electric
motor.
Electronic Stability Control
(ESC) indicator light
(If equipped)
This indicator light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- The Electronic Stability Control
indicator light illuminates for about
3 seconds and then goes off.
• Whenever there is a malfunction with
the ESC system.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
This indicator light blinks:
While the ESC is operating.
For more details, refer to “Electronic
Stability Control (ESC)” section in
chapter 6.
Electronic Stability Control
(ESC) OFF indicator light (if
equipped)
This indicator light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- The ESC OFF indicator light
illuminates for approximately 3
seconds and then goes off.
• When you deactivate the ESC system
by pressing the ESC OFF button.
For more details, refer to “Electronic
Stability Control (ESC)” section in
chapter 6.

Instrument cluster
4-20
Immobilizer indicator light
(with smart key)
(if equipped)
This indicator light illuminates for up to 30 seconds:
When the vehicle detects the smart key
in the vehicle with the Engine Start/Stop
button in the ACC or ON position.
-Once the smart key is detected, you
can start the engine.
-The indicator light goes off after
starting the engine.
This indicator light blinks for a few
seconds:
When the smart key is not in the vehicle.
- If the smart key is not detected, you
cannot start the engine.
This indicator light illuminates for 2
seconds and goes off:
If the smart key is in the vehicle and the
Engine Start/Stop button is ON, but the
vehicle cannot detect the smart key.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
This indicator light blinks:
When there is a malfunction with the
immobilizer system.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
Downhill Brake Control (DBC)
indicator light (if equipped)
This indicator light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- The downhill brake control indicator
light illuminates for about 3 seconds
and then goes off.
• When you activate the system by
pressing the DBC button.
This indicator light blinks:
When Downhill Brake Control system is
operating.
This indicator light illuminates yellow:
Whenever there is a malfunction with
Downhill Brake Control system.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
For more details, refer to "Downhill
Brake Control (DBC)“ section in chapter
6.

Instrument cluster
4-22
SPORT Mode indicator light
(if equipped)
This indicator light illuminates
When you select "SPORT" mode as drive
mode.
For more details, refer to "Drive Mode
Integrated Control System" in chapter
6.
ECO Mode indicator light (if
equipped)
This indicator light illuminates
When you select "ECO" mode as drive
mode.
For more details, refer to "Drive Mode
Integrated Control System" in chapter
6.
SMART Mode indicator light
(if equipped)
This indicator light illuminates:
When you select ''SMART" mode as drive
mode.
For more details, refer to "Drive Mode
Integrated Control System'' in chapter
6.
LCD display messages
Shift to P (if equipped)
This message is displayed if you try to
turn off the vehicle without the shift
button in the P (Park) position.
If this occurs, the Engine Start/Stop
button turns to the ACC position.
Low key battery (if equipped)
This message is displayed if the battery
of the smart key is discharged while
changing the Engine Start/Stop button to
the OFF position.
Press START button while turning
wheel (if equipped)
This message is displayed if the steering
wheel does not unlock normally when
the Engine Start/Stop button is pressed.
You should press the Engine Start/Stop
button while turning the steering wheel
right and left.
Check steering wheel lock system (if
equipped)
This message is displayed if the steering
wheel does not lock normally while the
Engine Start/Stop button is pressed to
the OFF position.

04
4-23
Press brake pedal to start engine (if
equipped)
This message is displayed if the Engine
Start/Stop button changes to the ACC
position twice by pressing the button
repeatedly without depressing the brake
pedal.
You can start the vehicle by depressing
the brake pedal and then pressing the
Engine Start/Stop button.
Key not in vehicle (if equipped)
This message is displayed if the smart
key is not in the vehicle when you press
the Engine Start/ Stop button.
When attempting to start the vehicle,
always have the smart key with you.
Key not detected (if equipped)
This message is displayed if the smart
key is not detected when you press the
Engine Start/Stop button.
Press START button again (if
equipped)
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, we recommend that you have
the vehicle inspected by an authorized
HYUNDAI dealer.
Press START button with key (if
equipped)
This message is displayed if 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 (if
equipped)
This message is displayed if the brake
switch fuse is disconnected.
You need to replace the fuse with a new
one before starting the engine.
If that is not possible, you can start the
engine by pressing the Engine Start/
Stop button for 10 seconds in the ACC
position.
12V battery discharging due to
additional electrical devices (if
equipped)
This message is displayed if the 12V
battery voltage is weak due to any
non-factory electrical accessories (ex.
dashboard camera) while parking. Be
careful that the battery is not discharged.
If the message appears after removing
the non-factory electrical accessories,
we recommend that you have the vehicle
inspected by an authorized HYUNDAI
dealer.