2021 HYUNDAI TUCSON HYBRID engine

01
1-23
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
ONX4HQ010013
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
ONX4HQ010014
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 .............................3-46
3. Engine Start/Stop button .......................6-8
4. Infotainment system ..Infotainment manual
5. Hazard warning lamp switch .................8-2
6. climate control system .........................5-96
7. Air ventilation seat ................................3-20
8. Seat warmer ..........................................3-18
9. Heated steering wheel ........................5-42
10. Parking Safety button .........................7-136
11. Parking/View button ...........................7-112
12. Transmission shift button .....................6-13
13. EPB (Electronic Parking Brake) switch ..6-22
14. Auto Hold switch .................................6-26
15. Drive mode button ..............................6-48
16. Passenger’s front air bag .....................3-46
17. Glove box ..............................................5-116
18. USB port ...............................................5-128
19. Power outlet ..........................................5-118
20. USB charger ..........................................5-119
21. Wireless charging system pad ............5-120
22. DBC (Downhill Brake Control) button .6-36
The actual shape may differ from the illustration.
ONX4H010005N
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.
ONX4EH090001
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

Vehicle Information, Consumer Information and Reporting Safety Defects
2-8
Itemsin. (mm)
Overall length 182.3 (4,630)
Overall width 73.4 (1,865)
Overall height 65.55 (1,665) / 66.34 (1,685)*
Wheel tread Front
Rear
235/65 R17 63.8 (1,620) 64.05 (1,627)
235/55 R19 63.58 (1,615) 63.9 (1,622)
Wheelbase 108.5(2,755)
* : 4WD
ENGINE
EngineDisplacement
cu. in (cc) Bore x Stroke
in. (mm) Firing order
No. of cylinders
Smartstream G 1.6 T-GDi HEV 97.51 (1,598) 2.97 x 3.5
(75.6 x 89.0) 1-3-4-2
In-line 4 cylinder
DIMENSIONS

Vehicle Information, Consumer Information and Reporting Safety Defects
2-12
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 *2
(drain and refill) Recommends5.1 US qt. (4.8 ℓ)SAE 0W-20, API SN PLUS/SP or
ILSAC GF-6
Automatic transmission fluid6.3 US qt. (6 ℓ)
SP4M-1, S-OIL ATF SP4M-1 or
other brands meeting the above
specification approved by
HYUNDAI Motor Co.
Coolant
4.95 US qt. (4.69 ℓ)Mixture of antifreeze and water
(Phosphate-based Ethylene glycol
coolant for aluminum radiator)
Invert Coolant
5.23 US qt. (4.95 ℓ)
Rear differential oil (AWD) 0.56~0.67 US qt. (0.53~0.63 ℓ)HYPOID GEAR OIL API GL-5, SAE
75W/85 (SK HCT-5 GEAR OIL
75W/85 or EQUIVALENT)
Transfer case oil (AWD) 0.65~0.71 US qt.
(0.62~0.68 ℓ)
Brake fluid *3As required SAE J1704 DOT-4 LV, FMVSS 116
DOT-4, ISO4925 CLASS-6
Fuel
54.9 US qt. (52 ℓ)Refer to “Fuel requirements” in
chapter 1.
*1 : Refer to the recommended SAE viscosity numbers on the next page.
*2 : Requires < API SN PLUS (or above) Full synthetic> grade engine oil. If a lower grade
engine oil (mineral oil including Semi-synthetic) is used, then the engine oil and engine
oil filter must be replaced as indicated severe maintenance condition.
*3 : To maintain the best braking performance and ABS/ESC performance, we recommend
that you use genuine brake fluid that conform to specifications.
RECOMMENDED LUBRICANTS AND CAPACITIES

02
2-13
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 -20-10 010 20 30 4050
(°F) -10020 40 60 80 100120
Smartstream G 1.6 T-GDi HEV
0W-20 0W-20
An engine oil displaying this 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.

Vehicle Information, Consumer Information and Reporting Safety Defects
2-14
VEHICLE IDENTIFICATION
NUMBER (VIN)
„„Frame number
ONX4H010020
The vehicle identification number (VIN)
is the number used in registering your
vehicle and in all legal matters pertaining
to its ownership, etc.
The number is punched on the engine
compartment frame and back side of the
engine.
„„VIN label (if equipped)
ONX4010021
The VIN is also on a plate attached to
the top of the left side dashboard. The
number on the plate can easily be seen
through the windshield from outside.
VEHICLE CERTIFICATION
LABEL
ONX4010022
The vehicle certification label attached
on the driver’s (or front passenger’s)
side center pillar gives the vehicle
identification number (VIN).