2021 HYUNDAI SANTA FE check engine light

Seats & Safety System
3-50
How does the air bags system
operate?
OTMH030008N
The SRS consists of the following
components:
(1)
Driver's fr
ont air bag module
(2)
Passenger's fr

ont air bag module
(3)
Side air bag modules
(4)
Curtain air bag modules
(5)
Re

tractor pre-tensioner
(6)
Air bag warning ligh

t
(7)
SRS contr

ol module (SRSCM)/
Rollover sensor
(8)
Fr

ont impact sensors
(9)
Side impact sensors
(10) Side pressure sensors
(11) Seat belt buckle sensor
(12) Emergency fastening device system
(13) Occupant classification system
The SRSCM continually monitors all SRS
components while the ignition switch
is ON to determine if a crash impact
is severe enough to require air bag
deployment or pre-tensioner seat belt
deployment.
SRS warning light
The SRS (Supplemental Restraint System)
air bag warning light on the instrument
panel displays the air bag symbol
depicted in the illustration. The system
checks the air bag electrical system for
malfunctions. The light indicates that
there is a potential problem with your
air bag system, which could include
your side and/or curtain air bags used
for rollover protection (if equipped with
rollover sensor).
WARNING
If your SRS malfunctions, the air bag
may not inflate properly during an
accident increasing the risk of serious
injury or death.
If any of the following conditions occur,
your SRS is malfunctioning:
• The light does not turn on for
approximately three to six seconds
when the Engine Start/Stop button is
in the ON position.
• The light stays on after illuminating
for approximately three to six
seconds.
• The light comes on while the vehicle
is in motion.
• The light blinks when the engine is
running.
We recommend that an authorized
HYUNDAI dealer inspect the SRS
as soon as possible if any of these
conditions occur.

AUTO STOP indicator light ........................................................................\
..............4-20
T urn signal indicator light ........................................................................\
................. 4-
21
High beam indicator light
........................................................................\
................ 4-

21
High Beam Assist indicator light
........................................................................\
...... 4-

21
Cruise Indicator Light
........................................................................\
....................... 4-

21
SPORT Mode Indicator Light
........................................................................\
........... 4-

22
ECO Mode Indicator Light
........................................................................\
............... 4-

22
SMART Mode Indicator Light
........................................................................\
.......... 4-22
Mas

ter warning light
........................................................................\
........................ 4-

22
LCD display messages
........................................................................\
....................... 4-

23
Shift to P (for smart key system)
........................................................................\
..... 4-

23
Low key battery (for smart key system).................................................................. 4-23
Press START button while turning wheel (for smart key system)
......................... 4-

23
Check steering wheel lock system
(for smart key system)
........................................................................\
..................... 4-

23
Press brake pedal to start engine (for smart key system)
.................................... 4-

23
Key not in vehicle (for smart key system)
............................................................... 4-23
K

ey not detected (for smart key system)................................................................ 4-23
Press START button again (for smart key system)
................................................ 4-

23
Press START button with key (for smart key system)
........................................... 4

-24
Check BRAKE SWITCH fuse (for smart key system)
............................................. 4

-24
Shift to P or N to start engine (for smart key system)
.......................................... 4

-24
Battery discharging due to external electrical devices
......................................... 4

-24
Door, Hood, Liftgate open indicator
....................................................................... 4-25
Sunr

oof open indicator
........................................................................\
.................... 4-

25
Low tire pressure
........................................................................\
............................. 4-

25
Lights
........................................................................\
................................................ 4-

26
Wiper
........................................................................\
.....................................

...........4-26
Low washer fluid
........................................................................\
.............................. 4-

26
Low fuel
........................................................................\
.....................................

.......4-26
Low engine oil
........................................................................\
.................................. 4-

26
Engine overheated / Engine has overheated
......................................................... 4-

27
Check exhaust system
........................................................................\
..................... 4-

27
Check headlight
........................................................................\
............................... 4-

27
Check turn signal
........................................................................\
............................. 4-

27
Check headlamp LED
........................................................................\
...................... 4-

27
Check Forward Collision-Avoidance Assist system
............................................... 4-

28
Check Lane Keeping Assist system
........................................................................\
4-28
Check Blind-

Spot Collision Warning system..........................................................4-28
Check Driver Attention Warning system
................................................................ 4-

28
Check High Beam Assist system
........................................................................\
..... 4-

28
Check Smart Cruise Control system
....................................................................... 4-28
4

Instrument cluster
4-10
Warning and indicator lights
Information
Make sure that all warning lights are OFF
after starting the engine. If any light is still
ON, this indicates a situation that needs
attention.
Seat belt warning light
This warning light informs the driver that
the seat belt is not fastened.
For more details, refer to “Seat Belts”
section in chapter 3.
Air bag warning light
This warning light illuminates:
• When you turn the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminat

es for approximately 3~6
seconds and then goes off.
• When there is a malfunction with the
SRS.
In this case, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
Parking brake & Brake fluid
warning light
This warning light illuminates:
• When you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- The parking brak

e & brake fluid
warning light illuminates for about 3
seconds and will then turn off once
the parking brake is released.
• Whenever the parking brake is
applied.
• Whenever the brake fluid level in the
reservoir is low.
- If the warning ligh

t illuminates
with the parking brake released, it
indicates the brake fluid level in the
reservoir is low.
If the brake fluid level in the reservoir is
low:
1.
Drive car

efully to the nearest safe
location and stop your vehicle.
2.
With the engine st

opped, check the
brake fluid level immediately and add
fluid as required (For more details,
refer to “Brake Fluid” section in
chapter 9). 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. We recommend
that you have the vehicle inspected by
an authorized HYUNDAI dealer.

Instrument cluster
4-12
WARNING
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.
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.
NOTICE
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.
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 pow

er steering warning
light illuminates for about 3 seconds
and then goes off.
• Whenever there is a malfunction with
the electric power steering.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
Charging system warning
light
This warning light illuminates:
When there is a malfunction with either
the alternator or electrical charging
system.
If there is a malfunction with either the
alternator or electrical charging system:
1.
Drive car

efully to the nearest safe
location and stop your vehicle.
2.
Turn the engine o

ff and check the
alternator drive belt for looseness or
breakage.
If the belt is adjusted properly, there
may be a problem in the electrical
charging system.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer as soon
as possible.

04
4-13
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 car
efully to the nearest safe
location and stop your vehicle.
2.
Turn the engine o

ff and check the
engine oil level (For more details,
refer to “Engine Oil” section in
chapter 2). If the level is low, add oil
as required.
If the warning light remains on after
adding oil or if oil is not available, we
recommend that you have the vehicle
inspected by an authorized HYUNDAI
dealer as soon as possible.
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.
St

op the vehicle as soon as it is
safe to do so.
2.
Turn o

ff 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. I

f 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 “E
or 0” can cause the engine to misfire
and damage the catalytic converter.
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 indicat

or 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 this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
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.

Instrument cluster
4-14
Exhaust system (GPF)
warning light (for gasoline
engine, if equipped)
• 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 (80km/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.
Electronic Parking Brake
(EPB) 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 EPB warning ligh

t illuminates
for about 3 seconds and then goes
off.
• Whenever there is a malfunction with
EPB.
If this occurs, we recommend that
you 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
ESC is not working properly. This does
not indicate malfunction of EPB.

Instrument cluster
4-24
Press START button with key
(for smart key system)
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
(for smart key system)
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.
Shift to P or N to start engine
(for smart key system)
This message is displayed if you try to
start the engine in any other position
except P (Park) or N (Neutral).
Information
You can start the engine with the gear
in N (Neutral). But, for your safety, we
recommend that you start the engine with
the gear shifted to P (Park).
Battery discharging due to external
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,
have the vehicle inspected by an
authorized HYUNDAI dealer.

04
4-25
Door, Hood, Liftgate open indicator
OTM040032
This warning is displayed if any door or
hood or liftgate is left open. The warning
will indicate which door is open in the
display.
CAUTION
Before driving the vehicle, you should
confirm that the door/ hood/liftgate is
fully closed.
Also, check there is no door/hood/
liftgate open warning light or message
displayed on the instrument cluster.
Sunroof open indicator (if equipped)
OTM040034
This warning is displayed if you turn off
the engine when the sunroof is open.
Close the sunroof securely before leaving
your vehicle.
Low tire pressure
OTM040022L
This warning message is displayed if the
tire pressure is low. The corresponding
tire on the vehicle will be illuminated.
For more details, refer to “Tire Pressure
Monitoring System (TPMS)” section in
chapter 8.