2021 HYUNDAI ELANTRA HYBRID engine

Foreword / Hybrid System Overview
1-20
SAFETY PRECAUTIONS FOR HYBRID SYSTEM
Hybrid Vehicle Components
High voltage battery system
„„HPCU (Hybrid Power Control Unit) *1
OCN7HQ010006
„„High voltage battery system *2
OAEQ046019
*1 : Located in the engine compartment
*2 : Located under the rear seats
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.
• Do not apply strong force nor pile
up any items above the luggage
compartment. Such an attempt
may distort the high voltage battery
case, causing a safety problem or
degrading the performance.
• Be careful when loading flammable
liquid in the luggage compartment.
It could cause operational and safety
degradation if the liquid leaks and
flows in the high voltage battery.
„„Drive motor *3
OCN7HQ010005
*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
OCN7HQ010001
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
OCN7HQ010002
The hybrid battery cooling duct is
located on the middle side of the rear
seats. 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
2.Vehicle Information
Vehicle Information
Exterior Overview ........................................................................\
..................2-2
Interior Overview
........................................................................\
...................2-4
Instrument Panel Overview
........................................................................\
...2-5
Engine Compartment
........................................................................\
............2-6
Dimensions
........................................................................\
..............................2-7
Engine specification
........................................................................\
...............2-7
Bulb Wattage
........................................................................\
..........................2-8
Tires and Wheels
........................................................................\
....................2-9
Volume and Weight
........................................................................\
..............2-10
Air Conditioning System
........................................................................\
.......2-10
Recommended Lubricants and Capacities
..................................................2-11Recommended SAE Viscosity Number .................................................................2-12
Vehicle Identification Number (VIN) ...........................................................2-13
Vehicle Certification Label
........................................................................\
...2-13
Tire Specification and Pressure Label
.........................................................2-14
Engine Number
........................................................................\
.....................2-14
Consumer Information
........................................................................\
.........2-15
Reporting Safety Defects
........................................................................\
.....2-16

2-5
02
The actual shape may differ from the illustration.OCN7010004N
INSTRUMENT PANEL OVERVIEW
1. Instrument cluster ..................................4-4
2. Driver’s front air bag .............................3-38
3. Engine start button.................................. 6-7
4. Key ignition switch .................................6-4
5. Infotainment system ...........................5-109
6. Hazard warning flasher switch ..............8-2
7. Climate control system ........................5-85
8. Passenger’s front air bag .....................3-38
9. Glove box .............................................5-102
10. Transmission shift lever ...........................6-12
11. Drive mode button ...............................6-38
12. Parking/View button ...........................7-100
13. Electronic parking brake switch ..........6-24
14. AUTO HOLD button ..............................6-28

2-6
Vehicle Information
„„Gasoline 1.6 GDi HEV
The actual engine room in the vehicle may differ from the illustration.OCN7H090001
ENGINE COMPARTMENT
1. Engine coolant reservoir .......................9-18
2. Engine coolant reservoir cap ................9-19
3. Inverter coolant reservoir......................9-18
4. Brake fluid reservoir .............................9-23
5. Air cleaner .............................................9-24
6. Engine oil dipstick .................................9-16
7. Engine oil filler cap ................................9-16
8. Windshield washer fluid reservoir .......9-24
9. Fuse box ................................................9-43

02
2-7
DIMENSIONS
Itemsin. (mm)
Overall length 183.1 (4,650)
Overall width 72 (1,825)
Overall height 55.9 (1,420)
Front tread 205/55 R16
62.4 (1,585)
225/45 R17 62.2 (1,579)
Rear tread 205/55 R16
62.8 (1,596)
225/45 R17 62.6 (1,590)
Wheelbase 107 (2,720)
ENGINE SPECIFICATION
ItemGasoline 1.6 GDi HEV
Displacement cu. in. (cc) 96.42 (1,580)
Bore x Stroke in. (mm)2.83 X 3.82 (72.0 X 97.0)
Firing order 1-3-4-2
No. of cylinders 4, in-line

02
2-11
RECOMMENDED LUBRICANTS AND CAPACITIES
To help achieve proper engine and powertrain performance and durability, use only
lubricants of the proper quality. The correct lubricants also help promote engine
efficiency that results in improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
LubricantVolumeClassification
Engine oil
*1 (drain and refill)
4.02 US qt. (3.8 ℓ)SAE 0W20, API Latest(ILSAC
Latest) or ACEA C5
Dual clutch transmission fluid1.7~1.8 US qt.(1.6~1.7 ℓ)
API GL-4, SAE 70W,
HK D DCTF TGO-10 (SK),
SPIRAX S6 GHDE 70W DCTF
(H.K.SHELL), 7 DCTF HKM (S-OIL)
Engine coolant
6.23 US qt. (5.9 ℓ)Mixture of antifreeze and water
(Phosphate-based Ethylene glycol
coolant for aluminum radiator)
Inverter coolant
2.22 US qt. (2.1 ℓ)
Brake/clutch fluid As required DOT-4 *2
Fuel
44.38 US qt. (42 ℓ)Refer to “Fuel requirements” in
the Foreword chapter.
*1 : Refer to the recommended SAE viscosity numbers on page 12.
*2 : To maintain the best braking performance and ABS/ESC performance, we recommend
that you use genuine brake fluid that conform to specifications. (Standard : SAE J1704
DOT-4 LV, ISO4925 CLASS-6 and FMVSS 116 DOT-4)

Vehicle Information
2-12
Recommended SAE Viscosity
Number
CAUTION
Always be sure to clean the area around
any filler plug, drain plug, or dipstick
before checking or draining any
lubricant. This is especially important
in dusty or sandy areas and when the
vehicle is used on unpaved roads.
Cleaning the plug and dipstick areas
will prevent dirt and grit from entering
the engine and other mechanisms that
could be damaged.Engine oil viscosity (thickness) has an
effect on fuel economy and cold weather
operating (engine start and engine oil
flowability). Lower viscosity engine oils
can provide better fuel economy and
cold weather performance, however,
higher viscosity engine oils are required
for satisfactory lubrication in hot
weather.
Using oils of any viscosity other than
those recommended could result in
engine damage.
When choosing an oil, consider the
range of temperature your vehicle will be
operated in before the next oil change.
Proceed to select the recommended oil
viscosity from the chart.
Temperature Range for SAE Viscosity Numbers
Temperature °C
-30 -20 -10 0 10 20 30 40 50
(°F) -10 0 20 40 60 80 100 120
Engine Oil *
1Gasoline 1.6 GDi HEV0W-20/5W-30
*1 : Requires grade engine oil. If a
lower grade engine oil(mineral oil including Semi-synthetic) is used, then the engine oil
and oil filter must be replaced as indicated severe maintenance condition.
An engine oil displaying this American Petroleum Institute(API)
Certification Mark conforms to the International Lubricant Specification
Advisory Committee (ILSAC). It is recommended to only use engine oils
that uphold this API Certification Mark.