2020 Hyundai Tucson coolant level

3-84
Convenient features of your vehicle
Turn on FUSE SWITCH
This warning message illuminates if
the fuse switch located in the fuse
box under the steering wheel is OFF.
It means that you should turn the
fuse switch on.
For more details, refer to “Fuses”
in chapter 7.
Heated Steering Wheel Off
(if equipped)
This message illuminates if the heat-
ed steering wheel has turned off
automatically approximately 30 min-
utes after the heated steering wheel
was turned on.
For more details, refer to “Heated
Steering Wheel” in this chapter.
Low washer fluid (if equipped)
This warning message illuminates on
the service reminder mode if the
washer fluid level in the reservoir is
nearly empty.
It means that you should refill the
washer fluid.
Low fuel
This warning message illuminates if
the fuel tank is nearly empty.
- When the low fuel level warning
light is illuminates.
- When the trip computer displays “---
km” as distance to empty.
Add fuel as soon as possible.
Engine has overheated
This warning message illuminates
with a warning chime when the
engine coolant temperature is above
120°C (248°F). This means that the
engine has overheated and may be
damaged.
If your vehicle has overheated,
refer to “Overheating” in chapter 6.
Check headlight (if equipped)
This warning message is displayed if
the headlamps are not operating
properly.
In addition, if a specific lamp(turn
signal lamp etc.) is not operating
properly, the warning message
according to a specific lamp (turn
signal lamp etc.) is displayed. A cor-
responding bulb may need to be
replaced.
Information
Make sure to replace the burned out
bulb with a new one of the same
wattage rating.
If not, this warning message will not
be displayed.
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OIK057165L

5-78
Driving your vehicle
When the ECO mode is activated:
The acceleration response may be
slightly reduced as the accelerator
pedal is depressed moderately.
The air conditioner performance
may be limited.
The shift pattern of the automatic
transmission or dual clutch trans-
mission may change.
The engine noise may get louder.
The above situations are normal
conditions when the ECO mode is
activated to improve fuel efficiency.Limitation of the ECO mode oper-
ation:
If the following conditions occur
whilst the ECO mode is operating,
the system operation is limited even
though there is no change in the
ECO indicator.
When the coolant temperature is
low:
The system will be limited until
engine performance becomes nor-
mal.
When driving up a hill:
The system will be limited to gain
power when driving uphill because
engine torque is restricted.
When using the automatic trans-
mission or dual clutch transmission
Sports mode:
The system will be limited accord-
ing to the shift location.
When the accelerator pedal is
deeply depressed for a few sec-
onds: The system will be limited,
judging that the driver wants to
speed up.
SPORT mode
SPORT mode manages
the driving dynamics by
automatically adjusting the
steering wheel, engine
and transmission system.
When the SPORT mode is select-
ed by pressing the DRIVE MODE
button, the SPORT indicator (yel-
low colour) will illuminate.
Restarting the engine in SPORT
mode resets the DRIVE mode to
COMFORT mode. Thus, when
necessary, reselect the SPORT
mode.
When the SPORT mode is activat-
ed:
- The RPM (revolutions per min-
utes) level is maintained over a
certain length of time, even after
releasing the accelerator.
- Up-shifting timing is delayed,
whilst accelerating.
Information
In SPORT mode, the fuel efficiency
may decrease.
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5-158
Driving your vehicle
Chain Installation
When installing tyre chains, follow
the manufacturer's instructions and
mount them as tightly possible. Drive
slowly (less than 30 km/h) with
chains installed. If you hear the
chains contacting the body or chas-
sis, stop and tighten them. If they still
make contact, slow down until the
noise stops. Remove the tyre chains
as soon as you begin driving on
cleared roads.
When mounting snow chains, park
the vehicle on level ground away
from traffic. Turn on the vehicle
Hazard Warning Flasher and place a
triangular emergency warning device
behind the vehicle (if available).
Always place the vehicle in P (Park),
apply the parking brake and turn off
the engine before installing snow
chains.When using tyre chains:
Wrong size chains or improperly
installed chains can damage
your vehicle's brake lines, sus-
pension, body and wheels.
Use SAE "S" class or wire
chains.
If you hear noise caused by
chains contacting the body,
retighten the chain to prevent
contact with the vehicle body.
To prevent body damage,
retighten the chains after driving
0.5~1.0 km.
Do not use tyre chains on vehi-
cles equipped with aluminium
wheels. If unavoidable, use a
wire type chain.
Use wire chains less than 15 mm
wide to prevent damage to the
chain’s connection.
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 cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in chapter 7. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
NOTICE

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.

6-9
What to do in an emergency
6
6. If you cannot find the cause of the
overheating, wait until the engine
temperature has returned to nor-
mal. Then, if coolant has been
lost, carefully add coolant to the
reservoir bringing the fluid level in
the reservoir up to the halfway
mark.
7. Proceed with caution, keeping
alert for further signs of overheat-
ing. If overheating happens again,
we recommend that you call an
authorised HYUNDAI dealer for
assistance.Serious loss of coolant indi-
cates a leak in the cooling
system and we recommend
the system be checked by an
authorised HYUNDAI dealer.
When the engine overheats
from low engine coolant, sud-
denly adding engine coolant
may cause cracks in the
engine. To prevent damage,
add engine coolant slowly in
small quantities.CAUTION
NEVER remove the
radiator cap or the
drain plug whilst the
engine and radiator
are hot. Hot coolant
and steam may blow out under
pressure, causing serious
injury.
Turn the engine off and wait
until the engine cools down.
Use extreme care when remov-
ing the radiator cap. Wrap a
thick towel around it, and turn it
anticlockwise slowly to the first
stop. Step back whilst the pres-
sure is released from the cool-
ing system. When you are sure
all the pressure has been
released, press down on the
cap, using a thick towel, and
continue turning anticlockwise
to remove it.
WARNING

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

7-8
Maintenance
At least monthly:
Check coolant level in the engine
coolant reservoir.
Check the operation of all exterior
lights, including the stoplights, turn
signals and hazard warning flash-
ers.
Check the inflation pressures of all
tyres including the spare for tyres
that are worn, show uneven wear,
or are damaged.
Check for loose wheel nuts.
At least twice a year:
(i.e., every Spring and Autumn)
Check radiator, heater and air con-
ditioning hoses for leaks or dam-
age.
Check the windscreen washer
spray and wiper operation. Clean
wiper blades with a clean cloth
dampened with washer fluid.
Check headlamp alignment.
Check muffler, exhaust pipes,
shields and clamps.
Check the seat belts for wear and
function.
At least once a year:
Clean body and door drain holes.
Lubricate door hinges and bonnet
hinges.
Lubricate door and bonnet locks
and latches.
Lubricate door rubber weather
strips.
Check the air conditioning system.
Inspect and lubricate automatic
transmission linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.