2023 HYUNDAI TUCSON HYBRID engine coolant

01
1-59
Refill inverter coolant
OOSHQ019012LOOSHQ019012L
This message is displayed when the
inverter coolant is nearly empty.
You should refill the inverter coolant.
Park with engine On to charge
battery
OOSHQ019013LOOSHQ019013L
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
OOSHQ019027LOOSHQ019027L
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.

2-7
02
„Smartstream G 1.6 T-GDi HEV
The actual engine compartment in the vehicle may differ from the illustration.
ONX4PH091001N
1. ECU
2. Engine coolant reservoir .......................9-18
3. Engine coolant reservoir cap ................9-18
4. Inverter coolant reservoir......................9-18
5. Brake fluid reservoir .............................. 9-21
6. Air cleaner ............................................. 9-237. Engine oil filler cap ................................ 9-16
8. Engine oil dipstick ................................. 9-16
9. Windshield washer fluid reservoir ....... 9-22
10. Fuse box ................................................ 9-54
11. Inverter coolant reservoir cap ..............9-18
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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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4
4. Instrument Cluster
Check Hybrid system. Do not start engine ............................................................ 4-27
Stop safely and check power supply ......................................................................4-28
Check virtual engine sound system........................................................................\
4-28
Refill inverter coolant ........................................................................\
......................4-28
Park with engine On to charge battery ..................................................................4-28
Start engine to avoid battery discharge .................................................................4-28
Check regenerative brakes......................................................................\
................4-29
Check virtual engine sound system........................................................................\
4-29
Unplug vehicle to start (Plug-in hybrid vehicle) ....................................................4-29
Remaining time (Plug-in hybrid vehicle) ................................................................4-29
Wait until fuel door unlocks (Plug-in hybrid vehicle) ........................................... 4-30
Check fuel door (Plug-in hybrid vehicle) ............................................................... 4-30
Fuel door open (Plug-in hybrid vehicle) ................................................................. 4-31
Shift to P to charge (Plug-in hybrid vehicle) .......................................................... 4-31
Switching to Hybrid mode to allow heating or air conditioning
(Plug-in hybrid vehicle) ........................................................................\
................... 4-31
Maintaining Hybrid mode to allow heating or air conditioning
(Plug-in hybrid vehicle) ........................................................................\
................... 4-32
Low/High System Temp. Maintaining Hybrid mode (Plug-in hybrid vehicle) ..... 4-32
Low/High System Temp. Switching to Hybrid mode (Plug-in hybrid vehicle) .... 4-32
Switching to Hybrid mode to lubricate engine (Plug-in hybrid vehicle) ..............4-33
Maintaining Hybrid mode to protect engine (Plug-in hybrid vehicle) .................4-33
Exit SPORT mode to switch to EV (Plug-in hybrid vehicle) ...................................4-33
LCD Display ........................................................................\
............................. 4-34LCD Display Control ........................................................................\
...........................4-34
View Modes ........................................................................\
........................................ 4-35Trip computer mode ........................................................................\
........................4-36
Turn By Turn (TBT) mode ........................................................................\
.................4-36
Driving Assist mode ........................................................................\
.........................4-36
Master warning group ........................................................................\
..................... 4-37
User settings mode ........................................................................\
..........................4-39
Trip Computer (4.2-inch) - Hybrid Vehicle ............................................................... 4-46 Trip modes ........................................................................\
....................................... 4-46
Trip Computer (10.25-inch) - Hybrid Vehicle ........................................................... 4-49 Trip modes ........................................................................\
....................................... 4-49
Trip Computer (4.2-inch) - Plug-in Hybrid Vehicle ...................................................4-52 Trip modes ........................................................................\
........................................4-52
Trip Computer (10.25-inch) - Plug-in Hybrid Vehicle ...............................................4-55 Trip modes ........................................................................\
........................................4-55
Vehicle Settings (Infotainment System) ........................................................ 4-58Setting Your Vehicle ........................................................................\
.......................... 4-58

Instrument Cluster4-28
Stop safely and check power supply
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
This message is displayed when there is
a problem with the Virtual Engine Sound
System (VESS).
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer.
Refill inverter coolant
This message is displayed when the
inverter coolant is nearly empty.
You should refill the inverter coolant.
Park with engine On to charge
battery
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
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.

Instrument Cluster4-38
ONX4E040023
Tire Pressure
This mode displays information related to
Tir
e Pressure.
For more details, refer to "Tire Pressure
Monitoring System (TPMS)" in chapter
8.
Engine coolant temperature
OTMH041044AU
This engine coolant temperature gauge
display shows the temperature of the
engine coolant when the engine is
running.
NOTICE
When the gauge indicator gets out of
the normal range, toward the "H(Hot)"
position, it indicates overheating of the
engine. It may damage the engine.
Do not continue driving with the
overheated engine.
For more details, refer to "If the Engine
Overheats" section in the chapter 8.

06
6-51
Driving in Flooded Areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel hub.
Drive through any water slowly. Allow
adequate stopping distance because
brake performance may be reduced.
After driving through water, dry the
brakes by gently applying them several
times while the vehicle is moving slowly.
Highway Driving
Tires
Adjust the tire inflation, as specified.
Under-inflation may overheat or damage
the tires.
Do not install worn-out or damaged tires,
which may reduce traction or fail the
braking operation.
Information
Never over-inflate your tires above the
maximum inflation pressure, as specified
on your tires.
Fuel, engine coolant and engine oil
Driving at higher speeds on the highway
consumes more fuel and is less efficient
than driving at a slower, more moderate
speed. Maintain a moderate speed in
order to conserve fuel when driving on
the highway.
Be sure to check both the engine coolant
level and the engine oil before driving.
Drive belt
A loose or damaged drive belt may
overheat the engine.
Reducing the Risk of a Rollover
Your multi-purpose passenger vehicle is
defined as a Sports Utility Vehicle (SUV).
SUV’s have higher ground clearance
and a narrower track to make them
capable of performing in a wide variety
of off-road applications. The specific
design characteristics give them a higher
center of gravity than ordinary vehicles
making them more likely to roll over if
you make abrupt turns. Utility vehicles
have a significantly higher rollover rate
than other types of vehicles. Due to this
risk, driver and passengers are strongly
recommended to buckle their seat belts.
In a rollover crash, an unbelted person
is significantly more likely to die than a
person wearing a seat belt.
There are steps that a driver can make
to reduce the risk of a rollover. If at all
possible, avoid sharp turns or abrupt
maneuvers, do not load your vehicle
with heavy cargo on the roof, and never
modify your vehicle in any way.
WARNING
Utility vehicles have a significantly
higher rollover rate than other types of
vehicles. To prevent rollovers or loss of
control:

[Take corners at slower speeds than
you would with a passenger vehicle.

[ Avoid sharp turns and abrupt
maneuvers.

[ Do not modify your vehicle in any
way that you would raise the center
of gravity.

[ Keep tires properly inflated.

[ Do not carry heavy cargo on the roof.
WARNING
In a rollover crash, an unbelted person
is significantly more likely to die than a
person wearing a seat belt. Make sure
all passengers are wearing their seat
belts.

06
6-55
Winter Precautions
Use high quality ethylene glycol coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because it
helps prevent corrosion in the cooling
system, lubricates the water pump and
prevents freezing. Be sure to replace or
replenish your coolant in accordance
with the maintenance schedule in
chapter 9. Before winter, have your
coolant tested to assure that its freezing
point is sufficient for the temperatures
anticipated during the winter.
Check battery and cables
Winter temperatures affect battery
performance. Inspect the battery and
cables, as specified in chapter 9. The
battery charging level can be checked
by an authorized HYUNDAI dealer or in a
service station.
If the vehicle is not used for a long time,
park the vehicle indoors if possible.
Change to “winter weight” oil if
necessary
In some regions during winter, it is
recommended to use the “winter
weight” oil with lower viscosity In
addition, replace the engine oil and filter
if it is close to the next maintenance
interval. Fresh engine oil ensures
optimum engine operation during the
winter months. For further information,
refer to chapter 2. When you are not sure
about a type of winter weight oil, consult
an authorized HYUNDAI dealer.Check spark plugs and ignition system
Inspect the spark plugs, as specified in
chapter 9. If necessary, replace them.
Also check all ignition wirings and
components for any cracks, wear-out,
and damage.
To prevent locks from freezing
To prevent the locks from being frozen,
spray approved de-icing fluid or glycerin
into key holes. When a lock opening is
already covered with ice, spray approved
de-icing fluid over the ice to remove it.
When an internal part of a lock freezes,
try to thaw it with a heated key. Carefully
use the heated key to avoid an injury.
Use approved window washer anti-
freeze solution in system
To prevent the window washer from
being frozen, add authorized window
washer anti-freeze solution, as specified
on the window washer container.
Window washer anti-freeze solution is
available from an authorized HYUNDAI
dealer, and most vehicle accessory
outlets. Do not use engine coolant or
other types of anti-freeze solution, to
prevent any damage to the vehicle paint.