check engine HYUNDAI TUCSON HYBRID 2023 Manual PDF

Emergency Situations8-4
IF THE ENGINE WILL NOT START

[ Be sure to shift the gear to N (Neutral)
or P (Park). The engine starts only
when the gear is in N (Neutral) or P
(Park).

[ This vehicle does not have a regular
12V battery that needs periodic
replacement. It is lithium ion polymer
type integrated into the HEV high
voltage battery. The vehicle has a
12V battery protection system that
cuts 12V battery from vehicle draw
to prevent full discharge. If vehicle
will not start, first try pressing the
12V Battery Reset switch (left side of
the steering wheel near the fuel door
open switch) to reconnect the 12V
battery, but you must start vehicle
within 15 seconds of pressing the 12V
Battery Reset switch. After starting
the vehicle (
indicator ON ),
operate the vehicle safely outdoors in
ready mode stopped and/or drive it
for 30 minutes total to charge the 12V
battery fully.

[ Check the fuel level and add fuel if
necessary.
If the vehicle still does not start, call
an authorized HYUNDAI dealer for
assistance.
NOTICE
Push or pull starting the vehicle may
cause the catalytic converter to
overload which can lead to damage to
the emission control system.

Emergency Situations8-6
NOTICE
External power source using 12V battery
The use of external power accessories
may reduce performance and function
of the vehicle. Especially, the use of
dash cameras may shut off the power of
the vehicle prior to the dash camera’s
automatic shut-down.
If the power of the vehicle is shut off,
start the vehicle as explained. (refer to
“Using the 12V Battery Reset Switch”)
Jump Starting
In the event vehicle still does not have a
functional 12V battery (check if interior
lights will not turn on) then you can try
a jump start to the engine compartment
jumper terminals using a 12V booster
pack or jumper cables from another
vehicle’s 12V battery according to the
following instructions.
CAUTION
Jump starting can be dangerous if
done incorrectly. Follow the jump
starting procedure in this section to
avoid serious injury or damage to
your vehicle. If in doubt about how to
properly jump start your vehicle, we
strongly recommend that you have a
service technician or towing service do
it for you.
1. Position the vehicles close enough that the jumper cables will reach, but
do not allow the vehicles to touch.
Avoid fans or any moving parts in the
engine compartment at all times, even
when the vehicles are turned off.
2. Turn off all electrical devices such as radios, lights, air conditioning, etc.
Put the vehicles in P (Park) and set the
parking brake. Turn both vehicles OFF.
CAUTION
Before jump starting, make sure to
correctly identify the positive (+) and
negative (-) terminals to avoid reverse
polarity connections.
ONX4080003
3. Connect the jumper cables in the exact sequence shown in the
illustration. First connect one jumper
cable to the red, positive (+) jumper
terminal of your vehicle (1).
4. Connect the other end of the jumper cable to the red, positive (+) battery/
jumper terminal of the assisting
vehicle (2).
5. Connect the second jumper cable to the black, negative (-) battery/jumper
terminal of the assisting vehicle (3).
6. Connect the other end of the second jumper cable to the black, negative (-)
chassis ground of your vehicle (4).
Do not allow the jumper cables to
contact anything except the correct
battery or jumper terminals or the
correct ground. Do not lean over the
battery when making connections.
WARNING
Do not connect the jumper cable to
the negative (-) jumper terminal of the
discharged battery. A spark could cause
the battery to explode and lead to a
personal injury or vehicle damage.

08
8-7
ONX4HQ010015
7. Press the 12V Battery Reset switch.
8. Start the engine of the assisting vehicle and let it run for a few
minutes.
9. Start your vehicle as soon as possible. After starting the vehicle
(
indicator on), operate the vehicle
safely outdoors in ready mode
stopped and/or drive it for 30 minutes
total to charge the 12V battery fully.
If your vehicle will not start after a few
attempts, it probably requires service.
In this event please seek qualified
assistance. If the cause of your battery
discharging is not apparent, have your
vehicle checked by an authorized
HYUNDAI dealer.
Disconnect the jumper cables in the
exact reverse order you connected them:
1. Disconnect the jumper cable from the black, negative (-) chassis ground of
your vehicle (4).
2. Disconnect the other end of the jumper cable from the black, negative
(-) battery/chassis ground of the
assisting vehicle (3).
3. Disconnect the second jumper cable from the red, positive (+) battery/
jumper terminal of the assisting
vehicle (2).
4. Disconnect the other end of the jumper cable from the red,
charging terminal inside the engine
compartment fuse panel (1).
Information
The voltage range of the charger should be
13.3~14V and its current range should be
less than 60A. (13.8V is recommended).
CAUTION

[The use of an improper charger with a
voltage and current range higher than
specified may cause overheating and
damage to the 12V battery.

[ The use of an incorrect charger will
lead to a power shut-off to save the
12V battery. Stop using the incorrect
charger once the power of the
vehicle is shut off.
Information
An inappropriately disposed
battery can be harmful to
the environment and human
health. Dispose of the battery
according to your local law(s) or
regulations.
NOTICE
To prevent damage to your vehicle:

[Only use a 12-volt power supply
(battery or jumper system) to jump
start your vehicle.

[ Do not attempt to jump start your
vehicle by push-starting.
CAUTION
Do not jump start another vehicle with
your hybrid vehicle. Jump starting
another vehicle will damage the
hybrid vehicle’s 12 volt battery (lithium
polymer type).
WARNING
While jump starting your vehicle, avoid
the positive (+) and negative (-) cables
to come in contact. A spark could cause
personal injury.

08
8-9
Jump starting procedure
1. Position the vehicles close enough that the jumper cables will reach, but
do not allow the vehicles to touch.
2. Avoid fans or any moving parts in the engine compartment at all times, even
when the vehicles are turned off.
3. Turn off all electrical devices such as radios, lights, air conditioning, etc.
Put the vehicles in P (Park) and set the
parking brake. Turn both vehicles OFF.
Information
Your vehicle has a battery in the luggage
compartment, but when you jump start
your vehicle, use the jumper terminal in
the engine compartment.
ONX4EH051104
4. Connect the jumper cables in the exact sequence shown in the
illustration. First connect one jumper
cable to the red, charging terminal
inside the engine compartment fuse
panel (1).
5. Connect the other end of the jumper cable to the red, positive (+) battery/
jumper terminal of the assisting
vehicle (2).
6. Connect the second jumper cable to the black, negative (-) battery/chassis
ground of the assisting vehicle (3). 7. Connect the other end of the second
jumper cable to the black, negative (-)
chassis ground of your vehicle (4).
Do not allow the jumper cables to
contact anything except the correct
battery or jumper terminals or the
correct ground. Do not lean over the
battery when making connections.
8. Start the engine of the assisting vehicle and let it run at approximately
2,000 RPM for a few minutes. Then
start your vehicle.
If your vehicle will not start after a few
attempts, it probably requires servicing.
In this event please seek qualified
assistance. If the cause of your battery
discharging is not apparent, have your
vehicle checked by an authorized
HYUNDAI dealer.
Disconnect the jumper cables in the
exact reverse order you connected them:
1. Disconnect the jumper cable from the black, negative (-) chassis ground of
your vehicle (4).
2. Disconnect the other end of the jumper cable from the black, negative
(-) battery/chassis ground of the
assisting vehicle (3).
3. Disconnect the second jumper cable from the red, positive (+) battery/
jumper terminal of the assisting
vehicle (2).
4. Disconnect the other end of the jumper cable from the red, positive (+)
jumper terminal of your vehicle (1).

Emergency Situations8-10
IF THE ENGINE OVERHEATS
If your temperature gauge indicates
overheating, you experience a loss of
power, or hear loud pinging or knocking,
the engine may be overheating. If this
happens, you should:
1. Pull off the road and stop as soon as it is safe to do so.
2. Shift the gear to P (Park) and set the parking brake
3. Turn off the air conditioner.
4. When the coolant or hot steams gush out of the reservoir, stop the engine
and call an authorized HYUNDAI
dealer for assistance. If the coolant
does not flow out, leave the engine
compartment opened, while running
the engine. Check the coolant
temperature gauge on the instrument
cluster and turn off the engine to
make sure the coolant temperature is
sufficiently cooled down. 5. Cool down the engine sufficiently
and check the coolant level. When it
is insufficient, check its connection
with the radiator, the heater hose,
and the water pump for any leakage.
When there is no leakage, add the
coolant. However, if the problems
persists, such as the coolant leakages,
the cooling-fan malfunction or the
water pump drive belt damages,
immediately stop the engine, and
have your vehicle checked by an
authorized HYUNDAI dealer.

[ You should mix antifreeze and water in
a proper ratio to make coolant. If the
antifreeze ratio is too high or low, it
may cause overheating due to the lack
of cooling function.
(Refer to the Mix Ratio in “Checking
the coolant level” in chapter 8.)

[ If overheating happens repeatedly,
have your vehicle to be checked by an
authorized HYUNDAI dealer.
WARNING
While the engine is running,
keep hands, clothing and tools
away from the moving parts
such as the cooling fan and
drive belt to prevent serious
injury.

08
8-11
WARNING
Never remove the engine
coolant cap and/or inverter
coolant cap or the drain plug
while the engine and radiator
are hot.
Hot coolant and steam may blow out
under pressure, causing serious injury.
Turn the hybrid system off and wait until
the engine cools down. Use extreme
care when removing the engine coolant
cap and/or inverter coolant cap. Wrap
a thick towel around it, and turn it
counterclockwise slowly to the first
stop. Step back while the pressure is
released from the cooling system. When
you are sure all the pressure has been
released, press down on the cap, using
a thick towel, and continue turning
counterclockwise to remove it.
CAUTION

[ Serious loss of coolant indicates a
leak in the cooling system and should
be checked as soon as possible by an
authorized HYUNDAI dealer.

[ When the engine overheats from
low engine coolant, suddenly adding
engine coolant may cause cracks
in the engine. To prevent damage,
add engine coolant slowly in small
quantities.

08
8-13
Tire Pressure Monitoring System
WARNING
Over-inflation or under-inflation can
reduce tire life, adversely affect vehicle
handling, and lead to sudden tire failure
that may cause loss of vehicle control
resulting in an accident.
Each tire, including the spare (if
provided), should be checked monthly
when cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer on the vehicle placard
or tire inflation pressure label. (If your
vehicle has tires of a different size than
the size indicated on the vehicle placard
or tire inflation pressure label, you should
determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
telltale when one or more of your tires is
significantly under-inflated. Accordingly,
when the low tire pressure telltale
illuminates, you should stop and check
your tires as soon as possible, and inflate
them to the proper pressure. Driving on
a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure.
Under-inflation also reduces fuel
efficiency and tire tread life, and may
affect the vehicle’s handling and
stopping ability.
Please note that the TPMS is not a
substitute for proper tire maintenance,
and it is the driver’s responsibility to
maintain correct tire pressure, even if
under-inflation has not reached the level
to trigger illumination of the TPMS low
tire pressure telltale.
Your vehicle has also been equipped with
a TPMS malfunction indicator to indicate
when the system is not operating
properly. The TPMS malfunction
indicator is combined with the low
tire pressure telltale. When the system
detects a malfunction, the indicator will
flash for approximately one minute and
then remain continuously illuminated.
This sequence will continue upon
subsequent vehicle start-ups as long as
the malfunction exists.
When the malfunction indicator is
illuminated, the system may not be able
to detect or signal low tire pressure as
intended. TPMS malfunctions may occur
for a variety of reasons, including the
installation of replacement or alternate
tires or wheels on the vehicle that
prevent the TPMS from functioning
properly.
Always check the TPMS malfunction
telltale after replacing one or more tires
or wheels on your vehicle to ensure that
the replacement or alternate tires and
wheels allow the TPMS to continue to
function properly.
NOTICE
If any of the below happens, have
the system checked by an authorized
HYUNDAI dealer.
1. The Low Tire Pressure Telltale/TPMS Malfunction Indicator does not
illuminate for 3 seconds when the
Engine Start/Stop button is pressed
to the ON position or the vehicle is in
the ready (
) mode.
2. The TPMS Malfunction Indicator remains illuminated after blinking for
approximately 1 minute.
3. The Low Tire Pressure Position Telltale remains illuminated.

9
9. Maintenance
Engine Compartment ........................................................................\
............... 9-3
Maintenance Services ........................................................................\
.............. 9-4
Owner’s Responsibility ........................................................................\
....................... 9-4
Owner Maintenance Precautions ........................................................................\
....... 9-4
Owner Maintenance ........................................................................\
................. 9-5Owner Maintenance Schedule ........................................................................\
............9-5
Scheduled Maintenance Services ....................................................................9-7Normal Maintenance Schedule ........................................................................\
.......... 9-9
Maintenance Under Severe Usage Conditions ....................................................... 9-12
Explanation of Scheduled Maintenance Items .............................................. 9-14
Engine Oil ........................................................................\
.................................9-16
Checking the Engine Oil Level ........................................................................\
........... 9-16
Checking the Engine Oil and Filter ........................................................................\
....9-17
Engine Coolant/Inverter Coolant ....................................................................9-18Checking the Coolant Level......................................................................\
................. 9-18
Changing Coolant ........................................................................\
............................. 9-20
Hybrid Starter & Generator (HSG) Belt ........................................................... 9-21
Checking the Hybrid Starter & Generator (HSG) Belt .............................................. 9-21
Brake Fluid ........................................................................\
................................ 9-21Checking the Brake Fluid Level ........................................................................\
......... 9-21
Washer Fluid ........................................................................\
............................ 9-22Checking the Washer Fluid Level ........................................................................\
...... 9-22
Air Cleaner ........................................................................\
............................... 9-23Filter Replacement ........................................................................\
............................. 9-23
Cabin Air Filter ........................................................................\
......................... 9-24Filter Inspection........................................................................\
..................................9-24
Filter Replacement ........................................................................\
.............................9-24
Wiper Blades ........................................................................\
........................... 9-25Blade Inspection ........................................................................\
................................ 9-25
Blade Replacement ........................................................................\
............................ 9-25
Battery (Plug-in hybrid vehicle) ..................................................................... 9-29For Best Battery Service ........................................................................\
................... 9-30
Battery Capacity Label ........................................................................\
....................... 9-31
Battery Recharging ........................................................................\
............................ 9-31
Reset Items ........................................................................\
.........................................9-33

9
Tires and Wheels ........................................................................\
..................... 9-34Tire Care ........................................................................\
..............................................9-34
Recommended Cold Tire Inflation Pressures ...........................................................9-34
Check Tire Inflation Pressure ........................................................................\
.............9-35
Tire Rotation ........................................................................\
.......................................9-36
Wheel Alignment and Tire Balance ........................................................................\
... 9-37
Tire Replacement ........................................................................\
............................... 9-37
Wheel Replacement ........................................................................\
.......................... 9-38
Tire Traction ........................................................................\
....................................... 9-38
Tire Maintenance..................................................................\
..................................... 9-38
Tire Sidewall Labeling ........................................................................\
........................9-39
Tire Terminology and Definitions ........................................................................\
.... 9-42
All Season Tires ........................................................................\
.................................. 9-44
Summer Tires ........................................................................\
.................................... 9-44
Snow Tires......................................................................\
............................................ 9-44
Radial-Ply Tires ........................................................................\
.................................. 9-45
Low Aspect Ratio Tires ........................................................................\
...................... 9-45
Fuses ...................................................................\
............................................. 9-47Instrument Panel Fuse Replacement ....................................................................... 9-48
Engine Compartment Panel Fuse Replacement ..................................................... 9-49
Fuse/Relay Panel Description........................................................................\
........... 9-50
Light Bulbs ........................................................................\
............................... 9-59Headlight, Position Lamp, Turn Signal Lamp, Daytime Running Light (DRL)
Replacement .............................................................\
................................................ 9-60
Side Repeater Lamp Replacement ........................................................................\
.. 9-60
Rear Combination Lamp Replacement .................................................................... 9-61
High Mounted Stop Lamp Replacement ................................................................. 9-64
License Plate Lamp Replacement ........................................................................\
.... 9-64
Interior Light Replacement ........................................................................\
............... 9-65
Appearance Care ........................................................................\
.................... 9-67Exterior Care ........................................................................\
.......................................9-67
Interior Care ........................................................................\
.........................................9-71
Emission Control System ........................................................................\
.........9-74
California Perchlorate Notice ........................................................................\
..9-77

09
9-5
WARNING
Performing maintenance work on a
vehicle can be dangerous. If you lack
sufficient knowledge and experience
or the proper tools and equipment
to do the work, have it done by an
authorized HYUNDAI dealer. ALWAYS
follow these precautions for performing
maintenance work:
• Park your vehicle on level ground,
move the shift button into the P
(Park) position, apply the parking
brake, and place the Engine Start/
stop button in the OFF position.
• Block the tires (front and back) to
prevent the vehicle from moving.
Remove loose clothing or jewelry
that can become entangled in
moving parts.
• If you must run the engine during
maintenance, do so out doors or in
an area with plenty of ventilation.
• Keep flames, sparks, or smoking
materials away from the battery and
fuel-related parts. The following lists are vehicle checks and
inspections that should be performed
by the owner or an authorized HYUNDAI
dealer at the frequencies indicated to
help ensure safe, dependable operation
of your vehicle.
Any adverse conditions should be
brought to the attention of your dealer as
soon as possible.
These Owner Maintenance vehicle
checks are generally not covered by
warranties and you may be charged for
labor, parts and lubricants used.
Owner Maintenance Schedule
When you stop for fuel:
• Check the coolant level in the engine
coolant reservoir.
• Check the windshield washer fluid level.
• Check for low or under-inflated tires.
WARNING
Be careful when checking your engine
coolant/inverter coolant level if the
engine is hot. This may result in coolant
being blown out of the opening and
cause serious burns and other injuries.
OWNER MAINTENANCE