2023 HYUNDAI TUCSON HYBRID radiator

01
1-19
AC Charge
„„AC ChargerAC Charger
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Actual charger image and charging
method may vary in accordance with the
charger manufacturer.
How to Connect AC Charger
1. Depress the brake pedal and apply the parking brake.
2. Turn OFF all switches, shift to P (Park), and turn OFF the vehicle.
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3. Press center edge of the charging door to open the charging door.
Information
If the charging door does not open because
ice has formed around it, tap lightly or
push on the door to break the ice and
release the door. Do not pry on the door. If
necessary, spray around the door with an
approved deicer fluid (do not use radiator
antifreeze) or move the vehicle to a warm
place and allow the ice to melt. 4. Check if there is dust on the charging
connector and charging inlet.
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5. Hold the charging connector handle and connect it to the vehicle AC
charging inlet. Push the connector
until you hear a “clicking” sound. If
the charging connector and charging
terminal are not connected properly,
this may cause a fire.
Information
Charging connector AUTO/LOCK mode
The charging connector is locked in the
inlet at a different period according to
which mode is selected.
• LOCK mode : The connector locks
when the charging connector is plugged
into the charging inlet.
• AUTO mode : The connector locks
when charging starts.
For more details, refer to “Charging
Connector AUTO/ LOCK Mode” in this
chapter.

Foreword/Starting your Hybrid/Plug-in hybrid vehicle1-38
How to Connect Portable Charger
(ICCB: In-Cable Control Box)
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PlugPlugElectric OutletElectric Outlet
1. Connect the plug to a household electric outlet.
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2. Check if the power lamp (green) illuminates on the control box.
3. Depress the brake pedal and apply the parking brake.
4. Turn OFF all switches, shift to P (Park), and turn OFF the vehicle.
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5. Press center edge of the charging door to open the charging door.
Information
If the charging door does not open because
ice has formed around it, tap lightly or
push on the door to break the ice and
release the door. Do not pry on the door. If
necessary, spray around the door with an
approved deicer fluid (do not use radiator
antifreeze) or move the vehicle to a warm
place and allow the ice to melt.
6. Check if there is dust on the charging connector and charging inlet.
ONX4PHQ011028NONX4PHQ011028N
7. Hold the charging connector handle and connect it to the vehicle AC
charging inlet. Push the connector
until you hear a “clicking” sound. If
the charging connector and charging
terminal are not connected properly,
this may cause a fire.

Foreword/Starting your Hybrid/Plug-in hybrid vehicle1-62
NOTICE
• It may take up to 20 seconds to open
fuel filler door.
• When the fuel filler door is frozen
and does not open after 20 seconds
at freezing temperature, slightly tap
the fuel filler door and then attempt
to open it. In other cases, have your
vehicle inspected by an authorized
HYUNDAI dealer.
• Do not pry on the door. If necessary,
spray around the door with an
approved de-icer fluid (do not use
radiator anti-freeze) or move the
vehicle to a warm place and allow
the ice to melt.
Check fuel door (Plug-in hybrid
vehicle)
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The message is displayed when the fuel
filler door is open while in driving or an
abnormality has occurred.
Fuel door open (Plug-in hybrid
vehicle)
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This message is displayed when the
fuel filler door opens after the fuel tank
is depressurized. If this message is
displayed, you can refuel the fuel tank.
Shift to P to charge (Plug-in hybrid
vehicle)
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This message is displayed when the
charging connector is plugged with the
shift button in R (Reverse), N (Neutral)
or D (Drive). Move the shift button to P
(Park) and re-start the charging process.

Vehicle Information, Consumer Information and Reporting Safety Defects2-18
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.
Lubricant VolumeClassification
Engine oil
*1 *2
(drain and refill) Recommends
86TW
b SAE 0W-20, API SN PLUS/SP or
ILSAC GF-6
Automatic transmission fluid
86TW
bSK ATF SP4M-1, MICHANG ATF
SP4M-1, S-OIL ATF SP4M-1,
Hyundai Genuine ATF SP4M-1
Coolant 86TW
bMixture of antifreeze and water
(Phosphate-based Ethylene glycol
coolant for aluminum radiator)
Inverter Coolant HEV
86TW
b
PHEV 86TW
b Contact an authorized Hyundai
dealer/service partner
Rear differential oil (AWD) 0.56 ~ 0.67 US qt.
a
b 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.
a
b
Brake fluid
*3As required SAE J1704 DOT-4 LV, FMVSS 116
DOT-4, ISO4925 CLASS-6
Fuel HEV
86JDO
b
Refer to “Fuel requirements” in
chapter 1.
PHEV 86JDO
b
*1 : Refer to the recommended SAE viscosity numbers on the next page.
*2 : Requires 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, use genuine brake
fluid that conform to specifications.
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Instrument Cluster4-30
Wait until fuel door unlocks (Plug-in
hybrid vehicle)
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This message is displayed when you
attempt to unlock the fuel filler door with
the fuel tank pressurized. Wait until the
fuel tank is depressurized.
NOTICE

[ It may take up to 20 seconds to
unlock fuel filler door.

[ If the fuel filler door does not open
because ice has formed around it,
tap lightly or push on the door to
break the ice and release the door.

[ Do not pry on the door. If necessary,
spray around the door with an
approved de-icer fluid (do not use
radiator anti-freeze) or move the
vehicle to a warm place and allow
the ice to melt.
Check fuel door (Plug-in hybrid
vehicle)
OAEPHQ049831L
The message is displayed when the fuel
filler door is open while in driving or an
abnormality has occurred.

Convenience Features5-54
Side View Mirrors
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Your vehicle is equipped with both left-
hand and right-hand side view mirrors.
The mirrors can be adjusted remotely
with the mirror adjustment control
switch. The side view mirrors can be
folded manually to help prevent damage
when going through an automatic car
wash or when passing through a narrow
street.
The right side view mirror is convex.
Objects seen in the mirror are closer than
they appear.
Use the inside rear view mirror or look
back directly to determine the actual
distance of other vehicles prior to
changing lanes.
Make sure to adjust the side view mirrors
to your desired position before you begin
driving.
WARNING
Do not adjust or fold the side view
mirrors while driving. This may cause
loss of vehicle control resulting in an
accident.
NOTICE
• Do not scrape ice off the mirror face;
this may damage the surface of the
glass.
• If the mirror is jammed with ice, do
not adjust the mirror by force. Use
an approved de-icer (not radiator
antifreeze) spray, or a sponge or soft
cloth with very warm water, or move
the vehicle to a warm place and
allow the ice to melt.
• Do not clean the mirror with harsh
abrasives, fuel or other petroleum
based cleaning products.

05
5-77
Fuel Filler Door (Hybrid vehicle)
Opening the fuel filler door
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1. Turn the engine off.
2. Ensure driver’s door is unlocked.
3. Press the rear center edge of the fuel filler door.
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4. Pull the fuel filler door (1) outward to access the fuel tank cap.
5. To remove the fuel tank cap (2), turn it counterclockwise. You may hear a
hissing noise as the pressure inside
the tank equalizes.
6. Place the cap on the fuel filler door.
Information
The fuel filler door will unlock when
driver’s door is unlocked.
To unlock fuel filler door:
• Press the unlock button on your smart
key
• Press the central door unlock button on
armrest trim of driver’s door
• Pull the driver’s inside door handle
outward
The fuel filler door will lock when
driver’s door is locked.
To lock fuel filler door:
• Press the lock button on your smart key
• Press the Central Door lock button on
armrest trim of driver’s door

à All doors will automatically lock after
the vehicle speed exceeds 9 mph. Fuel
filler door is also locked when vehicle
speed exceeds 9 mph.
Information
If the fuel filler door does not open
because ice has formed around it, tap
lightly or push on the door to break the
ice and release the door. Do not pry on the
door. If necessary, spray around the door
with an approved deicer fluid (do not use
radiator antifreeze) or move the vehicle to
a warm place and allow the ice to melt.

05
5-79
• 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, 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.
Fuel Filler Door (Plug-in hybrid
vehicle)
Opening the fuel filler door
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1. Turn the vehicle completely OFF. Do
not leave the vehicle with the ignition
in the ON position or with the engine
running. Doing so may cause the
check engine light to illuminate.
2. Push the fuel filler door open button.
NOTICE
If the fuel filler door does not open
because ice has formed around it, tap
lightly or push on the lid to break the
ice and release the lid. Do not pry on the
lid. If necessary, spray around the lid
with an approved de-icer fluid (do not
use radiator anti-freeze) or move the
vehicle to a warm place and allow the
ice to melt.