2020 Hyundai Tucson oil level

F9
Introduction
Use of MTBE
HYUNDAI recommends avoiding
fuels containing MTBE (Methyl
Tertiary Butyl Ether) over 15.0% vol.
(Oxygen Content 2.7% weight) in
your vehicle.
Fuel containing MTBE over 15.0%
vol. (Oxygen Content 2.7% weight)
may reduce vehicle performance and
produce vapour lock or hard starting.
Do not use methanol
Fuels containing methanol (wood
alcohol) should not be used in your
vehicle. This type of fuel can reduce
vehicle performance and damage
components of the fuel system,
engine control system and emission
control system.
Fuel Additives
We recommend to use unleaded
petrol which has an Octane Rating of
RON (Research Octane Number) 91
or higher.
For customers who do not use good
quality petrols including fuel addi-
tives regularly, and have problems
starting or the engine does not run
smoothly, adding one bottle of addi-
tives to the fuel tank is recommend-
ed according to the maintenance
schedule (refer to chapter 7, “Normal
Maintenance Schedule”).
Additives are available from your
authorised HYUNDAI dealer along
with information on how to use them.
Do not mix other additives.
Diesel engine
Diesel fuel
Diesel engines must be operated
only on commercially available diesel
fuel that complies with EN 590 or
comparable standard (EN stands for
"European Norm"). Do not use
marine diesel fuel, heating oils, or
non-approved fuel additives, as this
will increase wear and cause dam-
age to the engine and fuel system.
The use of non-approved fuels and /
or fuel additives will result in a limita-
tion of your warranty rights.
Diesel fuel of above cetane 51 is
used in your vehicle. If two types of
diesel fuel are available, use summer
or winter fuel properly according to
the following temperature conditions.
Above -5°C (23°F) ... Summer type
diesel fuel.
Below -5°C (23°F) ... Winter type
diesel fuel.
Watch the fuel level in the tank very
carefully : If the engine stops through
fuel failure, the circuits must be com-
pletely purged to permit restarting. Your New Vehicle Limited
Warranty may not cover dam-
age to the fuel system and any
performance problems that are
caused by the use of fuels con-
taining methanol or fuels con-
taining MTBE (Methyl Tertiary
Butyl Ether) over 15.0% vol.
(Oxygen Content 2.7% weight.)
CAUTION

3-85
Convenient features of your vehicle
3
Low engine oil (if equipped)
This warning message is displayed
when the engine oil level should be
checked.
If this warning message is displayed,
check the engine oil level as soon as
possible and add engine oil as
required.
Slowly pour the recommended oil lit-
tle by little into a funnel. (Oil refill
capacity : approximately 0.6 ~ 1.0
l)
Use only the specified engine oil.
(Refer to "Recommended lubricants
and capacities" in chapter 8.)
Do not overfill the engine oil. Make
sure the oil level is not above F (Full)
mark on the dipstick.
Information
If you travel approximately 50 km
~100 km after the engine warms up,
after adding the engine oil, the warn-
ing message will disappear.If the message is displayed con-
tinuously after adding the engine
oil and travelling approximately
50~100 km after the engine warms
up, we recommend that the sys-
tem be checked by an authorised
HYUNDAI dealer.
Even if this message is not dis-
played after the engine has start-
ed, the engine oil level should be
periodically checked and topped
up if required.
Check HBA (High Beam Assist)
system (if equipped)
This warning message is displayed if
there is a problem with the High
Beam Assist (HBA) System. We rec-
ommend that you have the vehicle
inspected by an authorised
HYUNDAI dealer.
For more details, refer to "High
Beam Assist (HBA) System" in
chapter 3.
Check FCA (Forward Collision
Avoidance Asst.) (if equipped)
This warning message is displayed if
there is a malfunction with the
Forward Collision-Avoidance Assist
(FCA) system. We recommend that
you have the vehicle inspected by an
authorised HYUNDAI dealer.
For more details, refer to "Forward
Collision-Avoidance Assist (FCA)
system" in chapter 5.
NOTICE
i

3-96
Convenient features of your vehicle
Charging System
Warning Light
This warning light illuminates:
Once you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- It remains on until the engine is
started.
When there is a malfunction with
either the alternator or electrical
charging system.
If there is a malfunction with either
the alternator or electrical charging
system:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. Turn the engine off and check the
alternator drive belt for looseness
or breakage.
If the belt is adjusted properly,
there may be a problem in the
electrical charging system.
In this case, we recommend that
you have the vehicle inspected by
an authorised HYUNDAI dealer as
soon as possible.
Engine Oil Pressure
Warning Light
This warning light illuminates:
Once you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- It remains on until the engine is
started.
When the engine oil pressure is
low.
If the engine oil pressure is low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. Turn the engine off and check the
engine oil level (For more details,
refer to “Engine Oil” in chapter
7). If the level is low, add oil as
required.
If the warning light remains on
after adding oil or if oil is not avail-
able, we recommend that you
have the vehicle inspected by an
authorised HYUNDAI dealer as
soon as possible.

3-97
Convenient features of your vehicle
3
- Engine Oil Pressure
Warning Light
If the engine does not stop
immediately after the Engine Oil
Pressure Warning Light is illumi-
nated, severe damage could
result.
If the warning light stays on
whilst the engine is running, it
indicates that there may be seri-
ous engine damage or malfunc-
tion. In this case,
1. Stop the vehicle as soon as it
is safe to do so.
2. Turn off the engine and check
the oil level. If the oil level is
low, fill the engine oil to the
proper level.
3. Start the engine again. If the
warning light stays on after
the engine is started, turn the
engine off immediately. In this
case, we recommend that you
have the vehicle inspected by
an authorised HYUNDAI deal-
er.Low Fuel Level
Warning Light
This warning light illuminates:
When the fuel tank is nearly empty.
If the fuel tank is nearly empty:
Add fuel as soon as possible.
- Low Fuel Level
Driving with the Low Fuel Level
warning light on or with the fuel
level below “0 or E” can cause the
engine to misfire and damage the
catalytic converter (if equipped).
Overspeed Warning
Light (if equipped)
This warning light blinks:
When you drive the vehicle over
120 km/h.
- This is to prevent you from driving
your vehicle with overspeed.
- The overspeed warning chime
also sounds for approximately 5
seconds.
NOTICE
NOTICE120km/h

4-9
Multimedia System
4
Do not stare at the screen
whilst driving. Staring at the
screen for prolonged periods
of time could lead to traffic
accidents.
Do not disassemble, assem-
ble, or modify the audio sys-
tem. Such acts could result in
accidents, fire, or electric
shock.
Using a phone whilst driving
may lead to a lack of attention
of traffic conditions and
increase the likelihood of
accidents. Use the phone fea-
ture after parking the vehicle.
Heed caution not to spill water
or introduce foreign objects
into the device. Such acts
could lead to smoke, fire, or
product malfunction.
WARNING
Operating the device whilst
driving could lead to accidents
due to a lack of attention to
external surroundings. First
park the vehicle before operat-
ing the device.
Adjust the volume to levels
that allow the driver to hear
sounds outside of the vehicle.
Driving when external sounds
cannot be heard may lead to
accidents.
Pay attention to the volume
setting when turning the
device on. A sudden output of
extreme volume upon turning
the device on could lead to
hearing impairment. Adjust
the volume to a suitable level
before turning off the device.
CAUTIONDo not place beverages close
to the audio system. Spilling
beverages may lead to system
malfunction.
In case of product malfunc-
tion, please contact your
place of purchase or After
Service centre.
Placing the audio system
within an electromagnetic
environment may result in
noise interference.
Prevent caustic solutions
such as perfume and cosmet-
ic oil from contacting the
instrument panel because
they may cause damage or
discolouration.

5-159
Driving your vehicle
5
Check battery and cables
The winter temperature increases
the battery consumption.Inspect
the battery and cables, as speci-
fied in chapter 7.The battery charg-
ing level can be checked by an
authorised HYUNDAI dealer or in a
service station.
Change to "winter weight" oil if
necessary
In some regions during winter, it is
recommended to use the "winter
weight" oil with lower viscosity. For
further information, refer to the chap-
ter 8. When you are not sure about a
type of winter weight oil, consult an
authorised HYUNDAI dealer.Check spark plugs and ignition
system
Inspect the spark plugs, as speci-
fied in chapter 7.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 authorised window
washer anti-freeze solution, as spec-
ified on the window washer contain-
er. Window washer anti-freeze solu-
tion is available from an authorised
HYUNDAI dealer, and so are the
most vehicle accessory outlets. Do
not use engine coolant or other types
of anti-freeze solution to prevent any
damage to the vehicle paint.

7
Maintenance
7
Maintenance
Engine compartment .............................................7-3
Maintenance services ...........................................7-5
Owner's responsibility ......................................................7-5
Owner maintenance precautions ..................................7-5
Owner maintenance ...............................................7-6
Owner maintenance schedule ........................................7-7
Scheduled maintenance services.........................7-9
Normal Maintenance Schedule
(Petrol Engine [1.6 T-GDI]) .........................................7-10
Maintenance Under Severe Usage
and Low Mileage Conditions
(Petrol Engine [1.6 T-GDI]) ..........................................7-14
Normal Maintenance Schedule
(Petrol Engine [2.0 GDI]) .............................................7-16
Maintenance Under Severe Usage
and Low Mileage Conditions
(Petrol Engine [2.0 GDI]) .............................................7-20
Normal Maintenance Schedule
(Diesel Engine [2.0 TCI]) ..............................................7-22
Maintenance Under Severe Usage
and Low Mileage Conditions
(Diesel Engine [2.0 TCI]) ...............................................7-25
Explanation of scheduled maintenance items .7-27Engine oil ..............................................................7-31
Checking the engine oil level (Petrol engine) ..........7-31
Checking the engine oil level (Diesel engine) ..........7-32
Checking the engine oil and filter ..............................7-34
Engine coolant......................................................7-35
Checking the coolant level ...........................................7-35
Changing the coolant .....................................................7-38
Brake/clutch fluid ................................................7-39
Checking the brake/clutch fluid level ........................7-39
Washer fluid .........................................................7-40
Checking the washer fluid level ..................................7-40
Parking brake .......................................................7-41
Checking the parking brake .........................................7-41
Fuel filter (for diesel) .........................................7-42
Draining water from fuel filter ....................................7-42
Fuel filter cartridge replacement ................................7-42
Air cleaner ............................................................7-43
Filter replacement ...........................................................7-43
Climate control air filter .....................................7-45
Filter inspection ...............................................................7-45
Filter replacement ...........................................................7-45
Wiper blades .........................................................7-46
Blade inspection ..............................................................7-46
Blade replacement ..........................................................7-46
7

7-7
7
Maintenance
Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check coolant level in the engine
coolant reservoir.
Check the windscreen washer fluid
level.
Check for low or under-inflated
tyres.
Whilst operating your vehicle:
Note any changes in the sound of
the exhaust or any smell of
exhaust fumes in the vehicle.
Check for vibrations in the steering
wheel. Notice if there is any
increased steering effort or loose-
ness in the steering wheel, or
change in its straight-ahead posi-
tion.
Notice if your vehicle constantly
turns slightly or “pulls” to one side
when travelling on a smooth, level
road.
When stopping, listen and check
for unusual sounds, pulling to one
side, increased brake pedal travel
or a “hard-to-push” brake pedal.
If any slipping or changes in the
operation of your transmission
occurs, check the transmission
fluid level.
Check the automatic transmis-
sion/dual clutch transmission
P (Park) function.
Check the parking brake.
Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal). Be careful when checking your
engine coolant level when the
engine is hot. This may result in
coolant being blown out of the
opening and cause serious
burns and other injuries.
WARNING
Diesel Engine
Never manipulate or modify the
injection system whilst running
the diesel engine or within 30
seconds after turning OFF the
diesel engine. The high-pres-
sure pump, high-pressure
pipes, rail, and injectors are still
subject to the high pressure
right after stopping the diesel
engine. When the fuel leakage
vents out, it may cause serious
body injury. Any people, who
are implemented with the artifi-
cial cardiac pacemaker, should
remain away from the ECU or
the wiring harness by at least 30
cm, whilst running the diesel
engine. The high currents of the
electric engine control system
produce a considerable amount
of magnetic fields.
WARNING