engine HYUNDAI SANTA FE HYBRID 2021 User Guide

01
1-15
Check Hybrid system. Stop safely
OTMHQ010023N
This message is displayed when there
is a problem with the hybrid control
system. The “
” indicator will blink
and a warning chime will sound until the
problem is solved. Refrain from driving
when the warning message is displayed.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
Check Hybrid system. Do not start
engine
OTMHQ010024N
This message is displayed when the
hybrid battery power (SOC) level is low.
A warning chime will sound until the
problem is solved. Refrain from driving
when the warning message is displayed.
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.
Stop safely and check power supply
OTMHQ010025N
This message is displayed when a failure
occurs in the power supply system.
If this occurs, park the vehicle in a safe
location and tow your vehicle to the
nearest authorized HYUNDAI dealer and
have the vehicle inspected.
Check virtual engine sound system
OTMHQ010026N
This message is displayed when there is
a problem with the Virtual Engine Sound
System (VESS).
If this occurs, we recommend that
you have the vehicle inspected by an
authorized HYUNDAI dealer.

Foreword / Hybrid System Overview
1-16
Refill inverter coolant
OTMHQ010028N
This message is displayed when the
inverter coolant is nearly empty.
You should refill the inverter coolant.
Park with engine On to charge
battery
OTMHQ010029N
This message is displayed when the
hybrid battery power (SOC) level is low.
If this occurs, park the vehicle in a safe
location and wait until the hybrid battery
is charged.
Start engine to avoid battery
discharge
OTMHQ010030N
This message is displayed to inform the
driver the 12V battery may be discharged
if the ignition switch is in ON position
(without the
indicator ON).
Set the vehicle to the ready () mode
to prevent the 12V battery from being
discharged.

01
1-17
Energy flow
The hybrid system informs the drivers its
energy flow in various operating modes.
While driving, the current energy flow is
specified in 11 modes.
Vehicle stop
OTMH040015N
The vehicle is stopped.
(No energy flow)
Electric mode
OTMHQ010003
Only the motor power is used to drive the
vehicle.
(Battery → Wheel)
Hybrid mode
OTMHQ010004
Both the motor and the engine power are
used to drive the vehicle.
(Battery & Engine → Wheel)
Fuel engine mode
OTMHQ010005
Only the engine power is used to drive
the vehicle.
(Engine → Wheel)

Foreword / Hybrid System Overview
1-18
Engine generation
OTMHQ010006
When the vehicle is stopped, the high-
voltage battery is charged up by the
engine.
(Engine → Battery)
Regeneration
OTMHQ010007
The high-voltage battery is charged up
by the regenerative brake system.
(Wheel → Battery)
Engine brake
OTMHQ010008
The engine braking is used to decelerate
the vehicle.
(Wheel → Engine)
Power reserve
OTMHQ010009
The engine is simultaneously used to
drive the vehicle and to charge up the
high-voltage battery.
(Engine → Wheel & Battery)

01
1-19
Engine generation/motor drive
OTMHQ010010
The engine charges up the high-voltage
battery. The motor power is used to drive
the vehicle.
(Engine → Battery → Wheel)
Engine generation/regeneration
OTMHQ010011
The engine and regenerative brake
system charges up the high-voltage
battery.
(Engine & Wheel → Battery)
Engine brake/regeneration
OTMHQ010012
The engine braking is simultaneously
used to decelerate the vehicle and to
charge up the high-voltage battery.
(Wheel → Engine & Battery)

Foreword / Hybrid System Overview
1-20
SAFETY PRECAUTIONS FOR HYBRID SYSTEM
Hybrid vehicle components
High voltage battery system
„„HPCU (Hybrid Power Control Unit) *1
OTMHQ010013
„„High voltage battery system *2
OTMHQ010014
*1 : Located in the engine compartment
*2 : Located under the floor
WARNING
Never touch orange colored or high
voltage labeled components, including
wires, cables, and connections. When
the insulators or covers are damaged or
removed, severe injury or death from
electrocution may occur.
WARNING
While replacing the fuses in the
engine compartment, never touch the
HPCU. The HPCU carries high voltage.
Touching the HPCU may result in
electrocution, serious injury, or death.
WARNING
In the hybrid system, the hybrid battery
uses high voltage to operate the motor
and other components. This high
voltage hybrid battery system can be
very dangerous.
Never touch the hybrid system. When
you touch the hybrid battery system,
serious injury or death may occur.
CAUTION
• Do not pile up any items in an area
behind the high voltage battery. In
a crash, the battery may become
unstable, or its performance may
degrade.
• Be careful when loading
flammable liquid in the passenger
compartment. It could cause
operational and safety degradation if
the liquid leaks and flows in the high
voltage battery.
„„Drive motor *3
OTMHQ010015
*3 : Located in the engine compartment

Foreword / Hybrid System Overview
1-22
NOTICE
• When the vehicle is paint baked, do
not bake over 30 minutes in 158°F
(70°C) or 20 minutes in 176°F (80°C)
degree.
• Do not wash the engine
compartment, using water. Water
may cause an electric shock and
damage the electronic components.
WARNING
This hybrid vehicle uses the hybrid
battery system inverter and converter
to generate high voltage. High voltage
in the hybrid battery system is very
dangerous and may cause severe burns
and electric shock. This may result in
serious injury or death.
• For your safety, never touch,
replace, disassemble or remove the
hybrid battery system including
components, cables and connectors.
Severe burns or electric shock may
result in serious injury or death when
you fail to follow this warning.
• When the hybrid battery system
operates, the hybrid battery system
can be hot. Always be careful
because burns or electric shock may
be caused by high voltage.
• Do not spill liquid on the HPCU, HSG,
motor and fuses. If the hybrid system
components come in contact with
liquid, it may result in electric shock.
Service interlock connector
OTMHQ010016
In case of emergency, cut the service
interlock connector cable to isolate the
high voltage of the battery.
WARNING
Never disconnect the service interlock
connector or cut the wire except in an
emergency situation.
Serious problems may occur, such as
the vehicle will not start.
Hybrid battery cooling duct
OTMHQ010017
The hybrid battery cooling duct is
located of the Passenger’s seat. The
cooling duct cools down the hybrid
battery. When the hybrid battery cooling
duct is blocked, the hybrid battery may
be overheated.
Clean the cooling duct for the hybrid
battery with a dry cloth on a regular
basis.

2.Vehicle Information,
Consumer Information and
Reporting Safety Defects
Vehicle Information, Consumer Information and Reporting Safety Defects
Exterior overview (I) ........................................................................\
...................2-2
Exterior overview (II)
........................................................................\
..................2-3
Interior overview
........................................................................\
......................2-4
Instrument panel overview (I)
........................................................................\
.2-5
Instrument panel overview (II)
........................................................................\
2-6
Engine compartment
........................................................................\
.................2-7
Dimensions
........................................................................\
................................2-8
Engine
........................................................................\
........................................2-8
Bulb wattage
........................................................................\
.............................2-9
Tires and wheels
........................................................................\
......................2-10
Air conditioning system
........................................................................\
............2-11
Volume and weight
........................................................................\
...................2-11
Recommended lubricants and capacities
.....................................................2-12Recommended SAE viscosity number ......................................................................2-13
Vehicle identification number (VIN) ...............................................................2-14
Vehicle certification label
........................................................................\
........2-14
Tire specification and pressure label
..............................................................2-15
Engine number
........................................................................\
.........................2-15
Air conditioner compressor label
...................................................................2-15
Consumer Information
........................................................................\
............2-16
Reporting Safety Defects
........................................................................\
........2-17
2

2-5
02
1. Instrument cluster ..................................4-4
2. Driver’s front air bag .............................3-47
3. Engine Start/Stop button .......................6-5
4. Infotainment system ......Infotainment manual
5. Hazard warning lamp switch .................8-3
6. Climate control system ........................5-93
7. Transmission shift button .....................6-10
8. Auto Hold button ..................................6-23
9. Heated steering wheel button ..............5-37
10. AWD lock button ..................................6-38
11. DBC (Downhill Brake Control) button .6-33
12. Parking Safety button ............................7-111
13. Parking/View button ............................7-89
14. Air ventilation seat button ....................3-19
15. Seat warmer button ..............................3-21
16. Passenger’s front air bag .....................3-47
17. Glove box .............................................5-109
18. Wireless charging system pad .............5-116
19. Cup holder ............................................5-111
20. AC inverter ............................................5-114
21. USB charger ..........................................5-114
The actual shape may differ from the illustration.
OTMH010004
INSTRUMENT PANEL OVERVIEW (I)

2-7
02
„„Smartstream G 1.6 T-GDi HEV
The actual engine compartment in the vehicle may differ from the illustration.
OTMH090001
1. ECU
2. Engine coolant reservoir .......................9-17
3. Engine coolant reservoir cap ................9-17
4. Inverter coolant reservoir......................9-17
5. Brake fluid reservoir .............................9-20
6. Air cleaner .............................................9-22
7. Engine oil filler cap ................................9-15
8. Engine oil dipstick .................................9-15
9. Windshield washer fluid reservoir ........9-21
10. Fuse box .................................................9-41
11. Invert coolant reservoir cap ..................9-17
ENGINE COMPARTMENT