2021 HYUNDAI SANTA FE Engine Electrical System

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
4-12
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.

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.

Convenient features
5-14
Immobilizer system
The immobilizer system helps protect
your vehicle from theft. If an improperly
coded key (or other device) is used, the
engine’s fuel system is disabled.
When the Engine Start/Stop button
is pressed to the ON position, the
immobilizer system indicator should
come on briefly, then go off. If the
indicator starts to blink, the system does
not recognize the coding of the key.
Press the Engine Start/Stop button to
the OFF position, then press the Engine
Start/Stop button to the ON position
again.
The system may not recognize your
key’s coding if another immobilizer key
or other metal object (i.e., key chain) is
near the key. The engine may not start
because the metal may interrupt the
transponder signal from transmitting
normally.
If the system repeatedly does not
recognize the coding of the key, it is
recommended that you contact your
HYUNDAI dealer.
Do not attempt to alter this system
or add other devices to it. Electrical
problems could result that may make
your vehicle inoperable. WARNING
In order to prevent theft of your
vehicle, do not leave spare keys
anywhere in your vehicle. Your
immobilizer password is a customer
unique password and should be kept
confidential.
NOTICE
The transponder in your key is an
important part of the immobilizer
system. It is designed to give years
of trouble-free service, however you
should avoid exposure to moisture,
static electricity and rough handling.
Immobilizer system malfunction could
occur.
Information
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following three
conditions:
1.
This device may not cause harmful
interference.
2.
This device must accept any
interference r

eceived, including
interference that may cause undesired
operation.
3.
Changes or modifications not expr

essly
approved by the party responsible
for compliance could void the user’s
authority to operate the device.

05
5-79
• Do not get back into a vehicle
once you have begun refueling.
You can generate a buildup of
static electricity by touching,
rubbing or sliding against any item
or fabric capable of producing
static electricity. Static electricity
discharge can ignite fuel vapors
causing a fire. If you must re-enter
the vehicle, you should once again
eliminate potentially dangerous
static electricity discharge by
touching a metal part of the vehicle,
away from the fuel filler neck, nozzle
or other fuel source, with your bare
hand.
• When using an approved portable
fuel container, be sure to place the
container on the ground prior to
refueling. Static electricity discharge
from the container can ignite fuel
vapors causing a fire.
Once refueling has begun, contact
between your bare hand and the
vehicle should be maintained until
the filling is complete.
• Use only approved portable plastic
fuel containers designed to carry and
store fuel.
• When refueling, always shift the
gear to the P (Park) position, set
the parking brake, and press the
Engine Start/Stop button to the
OFF position. Sparks produced by
electrical components related to the
engine can ignite fuel vapors causing
a fire.
• Do not use matches or a lighter and
do not smoke or leave a lit cigarette
in your vehicle while at a gas station,
especially during refueling.• Do not over-fill or top-off your
vehicle tank, which can cause fuel
spillage.
• If a fire breaks out during refueling,
leave the vicinity of the vehicle, and
immediately contact the manager
of the gas station and then contact
the local fire department. Follow any
safety instructions they provide.
• If pressurized fuel sprays out, it can
cover your clothes or skin and thus
subject you to the risk of fire and
burns. Always remove the fuel cap
carefully and slowly. If the cap is
venting fuel or if you hear a hissing
sound, wait until the condition stops
before completely removing the cap.
• Always check that the fuel cap is
installed securely to prevent fuel
spillage in the event of an accident.
Information
Make sure to refuel your vehicle according
to the “Fuel Requirements” section in
suggested in chapter 1.
NOTICE
• Do not spill fuel on the exterior
surfaces of the vehicle. Any type of
fuel spilled on painted surfaces may
damage the paint.
• If the fuel filler cap requires
replacement, we recommend that
you use only a genuine HYUNDAI cap
or the equivalent specified for your
vehicle. An incorrect fuel filler cap
can result in a serious malfunction of
the fuel system or emission control
system.

Convenient features
5-102
Air conditioning
HYUNDAI Air Conditioning Systems are
filled with R-134a or R-1234yf refrigerant.
1.
Start the engine. Push the air
conditioning butt
on.
2.
Set the mode t

o the
position.
3.
Set the air in

take control to the
outside air or recirculated air position.
4.
Adjus

t the fan speed control and
temperature control to maintain
maximum comfort.
Information
Your vehicle is filled with R-134a or
R-1234yf according to the regulation in
your country at the time of production.
You can find out which air conditioning
refrigerant is applied to your vehicle on
the label located inside of the hood. Refer
to chapter 8 for the location of the air
conditioning refrigerant label.
NOTICE
• The refrigerant system should only
be serviced by trained and certified
technicians to insure proper and safe
operation.
• The refrigerant system should be
serviced in a well-ventilated place.
• The air conditioning evaporator
(cooling coil) shall never be repaired
or replaced with one removed from
a used or salvaged vehicle and new
replacement MAC evaporators shall
be certified (and labeled) as meeting
SAE Standard J2842.
NOTICE
• When using the air conditioning
system, monitor the temperature
gauge closely while driving up
hills or in heavy traffic when
outside temperatures are high.
Air conditioning system operation
may cause engine overheating.
Continue to use the fan but turn the
air conditioning system off if the
temperature gauge indicates engine
overheating.
• When opening the windows in humid
weather air conditioning may create
water droplets inside the vehicle.
Since excessive water droplets
may cause damage to electrical
equipment, air conditioning should
only be used with the windows
closed.

Convenient features
5-112
Air conditioning
HYUNDAI Air Conditioning Systems are
filled with R-1234yf refrigerant.
1.
Start the engine. Push the air
conditioning butt
on.
2.
Set the mode t

o the
position.
3.
Set the air in

take control to the
outside air or recirculated air position.
4.
Adjus

t the fan speed control and
temperature control to maintain
maximum comfort.
Information
Your vehicle is filled with R-134a or
R1234yf according to the regulation in
your country at the time of production.
You can find out which air conditioning
refrigerant is applied to your vehicle on
the label located inside of the hood. Refer
to chapter 8 for the location of the air
conditioning refrigerant label.
NOTICE
• The refrigerant system should only
be serviced by trained and certified
technicians to insure proper and safe
operation.
• The refrigerant system should be
serviced in a well-ventilated place.
• The air conditioning evaporator
(cooling coil) shall never be repaired
or replaced with one removed from
a used or salvaged vehicle and new
replacement MAC evaporators shall
be certified (and labeled) as meeting
SAE Standard J2842.
NOTICE
• When using the air conditioning
system, monitor the temperature
gauge closely while driving up
hills or in heavy traffic when
outside temperatures are high.
Air conditioning system operation
may cause engine overheating.
Continue to use the fan but turn the
air conditioning system off if the
temperature gauge indicates engine
overheating.
• When opening the windows in humid
weather air conditioning may create
water droplets inside the vehicle.
Since excessive water droplets
may cause damage to electrical
equipment, air conditioning should
only be used with the windows
closed.