oil HYUNDAI TUCSON 2021 Owners Manual

F9
Introduction
For customers who do not use TOP
Tier Detergent Gasoline regularly,
and have problems starting or the
engine does not run smoothly, deter-
gent-based fuel additives that you
can purchase separately may be
added to the gasoline. If TOP TIER
Detergent Gasoline is not available,
one bottle of additive added to the
fuel tank according to the mainte-
nance schedule is recommended
(refer to the Maintenance Schedule
in chapter 7).
Additives are available from your
authorized HYUNDAI dealer along
with information on how to use them.
Do not mix other additives.
Operation in foreign countries
If you are going to drive your vehicle
in another country, be sure to:
Observe all regulations regarding registration and insurance.
Determine that acceptable fuel is available. No special break-in period is needed.
By following a few simple precautions
for the first 600 miles (1,000 km) you
may add to the performance, econo-
my and life of your vehicle.
Do not race the engine.
While driving, keep your engine
speed (rpm, or revolutions per
minute) between 2,000 rpm and
4,000 rpm.
Do not maintain a single speed for long periods of time, either fast or
slow. Varying engine speed is need-
ed to properly break-in the engine.
Avoid hard stops, except in emer- gencies, to allow the brakes to seat
properly.
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CALIFORNIA PROPOSITION 65
WARNING
Items contained in motor vehi-
cles or emitted from them are
known to the State of California
to cause cancer and birth
defects or reproductive harm.
These include:
Gasoline and its vapors
Engine exhaust
Used engine oil
Interior passenger compart-
ment components and materi-
als
Component parts which are
subject to heat and wear
In addition, battery posts, termi-
nals and related accessories
contain lead, lead compounds
and other chemicals known to
the State of California to cause
cancer and reproductive harm.
WARNING

1-6
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Your vehicle at a glance
OTLA075001 ■ ■
2.0 GDI
1. Engine coolant reservoir/
Radiator cap .....................................7-19
2. Brake fluid reservoir ..........................7-23
3. Air cleaner.........................................7-25
4. Engine oil dipstick .............................7-17
5. Engine oil filler cap ...........................7-18
6. Windshield washer fluid reservoir .....7-24
7. Fuse box ...........................................7-53
8. Battery terminal [+] ...........................7-33
9. Battery terminal [-] ............................7-33
The actual engine compartment in the vehicle may differ from the illustration.

1-7
Your vehicle at a glance
1
OTLE075104
■ ■2.4 GDI
1. Engine coolant reservoir/
Radiator cap .....................................7-19
2. Brake fluid reservoir ..........................7-23
3. Air cleaner.........................................7-25
4. Engine oil dipstick .............................7-17
5. Engine oil filler cap ...........................7-18
6. Windshield washer fluid reservoir .....7-24
7. Fuse box ...........................................7-53
8. Battery terminal [+] ...........................7-33
9. Battery terminal [-] ............................7-33
The actual engine compartment in the vehicle may differ from the illustration.

3-77
Convenient features of your vehicle
3
Engine Oil Pressure
Warning Light
This warning light illuminates:
When 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 and restarting the engine
or if oil is not available, turn off the
engine. There is a mechanical con-
cern that needs to be repaired
before you can continue driving. In
this case, have your vehicle inspect-
ed by an authorized HYUNDAI deal-
er. If the engine is not turned OFF
immediately after the Engine Oil
Pressure Warning Light is illumi-
nated, severe damage could
result.
If the warning light stays on
while 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, the
engine odd immediately and
have the vehicle towed to an
authorized HYUNDAI dealer
for inspection.
Low Fuel Level
Warning Light
This warning light illuminates:
When the fuel tank is nearly empty.
Add fuel as soon as possible.
Driving with the Low Fuel Level
warning light on or with the fuel
level below "E" can cause the
engine to misfire and damage the
catalytic converter.
NOTICE
NOTICE

3-135
Convenient features of your vehicle
3
System Maintenance
Climate control air filter
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
This filter is installed behind the
glove box. It filters the dust or other
pollutants that enter the vehicle
through the heating and air condi-
tioning system.Have the climate control air filter
replaced by an authorized HYUNDAI
dealer according to the maintenance
schedule. If the car is being driven in
severe conditions such as dusty or
rough roads, more frequent climate
control filter inspections and
changes are required.
If the air flow rate suddenly decreas-
es, the system should be checked at
an authorized HYUNDAI dealer.
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the air
conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by
an authorized HYUNDAI dealer.
It is important that the correct
type and amount of oil and refrig-
erant is used. Otherwise, damage
to the compressor and abnormal
system operation may occur. To
prevent damage, the air condition-
ing system in your vehicle should
only be serviced by trained and
certified technicians.
NOTICE
OIK047401L

3-136
Convenient features of your vehicle
Air Conditioning refrigerant label
You can find out which air condition-
ing refrigerant is applied to your vehi-
cle on the label located on the under-
side of the hood.Each symbols and specification on
the air conditioning refrigerant label
is represented as below:
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of compressor lubri-
cant
4. Caution
5. Flammable refrigerant
6. To require registered technician to
service air conditioning system Vehicles equipped with R-1234yf
Since the refrigerant is
mildly flammable and
operated at high pres-
sure, the air condition-
ing system should only
be serviced by trained
and certified techni-
cians. It is important
that the correct type and amount
of oil and refrigerant are used.
All refrigerants should be
reclaimed with proper equipment.
Venting refrigerants directly to the
atmosphere is harmful to individu-
als and environment. Failure to
heed these warnings can lead to
serious injuries.
WARNING
OHYK059001 ■ExampleOTLE088009

3-148
Convenient features of your vehicle
If you operate the air conditioner
excessively, the difference
between the temperature of the
outside air and that of the wind-
shield could cause the outer sur-
face of the windshield to fog up,
causing loss of visibility. In this
case, toggle the mode selection
button to the position and set
the fan speed control knob to the
lowest speed setting.
System Maintenance
Climate control air filter
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
This filter is installed behind the glove
box. It filters the dust or other pollu-
tants that enter the vehicle through the
heating and air conditioning system.
Have the climate control air filter
replaced by an authorized HYUNDAI
dealer according to the maintenance
schedule. If the car is being driven in
severe conditions such as dusty or
rough roads, more frequent climate
control air filter inspections and
changes are required.If the air flow rate suddenly decreas-
es, the system should be checked at
an authorized HYUNDAI dealer.
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the air
conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by
an authorized HYUNDAI dealer.
It is important that the correct
type and amount of oil and refrig-
erant is used. Otherwise, damage
to the compressor and abnormal
system operation may occur. To
prevent damage, the air condition-
ing system in your vehicle should
only be serviced by trained and
certified technicians.
NOTICE
OIK047401L

3-149
Convenient features of your vehicle
3
Air Conditioning refrigerant label
You can find out which air condition-
ing refrigerant is applied to your vehi-
cle on the label located on the under-
side of the hood.Each symbols and specification on
the air conditioning refrigerant label
is represented as below:
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of compressor lubri-
cant
4. Caution
5. Flammable refrigerant
6. To require registered technician to
service air conditioning system
OHYK059001 ■ExampleOTLE088009
Vehicles equipped with R-1234yf
Since the refrigerant is
mildly flammable and
operated at high pres-
sure, the air condition-
ing system should only
be serviced by trained
and certified techni-
cians. It is important
that the correct type and amount
of oil and refrigerant are used.
All refrigerants should be
reclaimed with proper equipment.
Venting refrigerants directly to the
atmosphere is harmful to individu-
als and environment. Failure to
heed these warnings can lead to
serious injuries.
WARNING

3-167
Convenient features of your vehicle
3
Cargo Net Holder (if equipped)
To keep items from shifting in the
rear area of the vehicle, you can use
the four hooks around the floorboard
of the rear cargo area to attach a
cargo net.
Your vehicle may come equipped
with a cargo net, or the cargo net is
available as an optional accessory at
your local HYUNDAI dealer.
Cargo Security Screen
(if equipped)
Use the cargo security screen to
cover items stored in the cargo area.
OTL045232
To avoid eye injury, DO NOT
overstretch the luggage net.
ALWAYS keep your face and
body out of the luggage net’s
recoil path. DO NOT use the lug-
gage net when the strap has vis-
ible signs of wear or damage.
WARNING
To prevent damage to the goods
or the vehicle, care should be
taken when carrying fragile or
bulky objects in the luggage
compartment.
CAUTION
OTL045233

5-3
Driving your vehicle
5
Carbon monoxide (CO) gas is toxic. Breathing CO can cause unconsciousness and death.
Engine exhaust contains carbon monoxide which cannot be seen or smelled.
Do not inhale engine exhaust.
If at any time you smell engine exhaust inside the vehicle, open the windows immediately. Exposure to CO can cause
unconsciousness and death by asphyxiation.
Be sure the exhaust system does not leak.
The exhaust system should be checked whenever the vehicle is raised to change the oil or for any other purpose. If
you hear a change in the sound of the exhaust or if you drive over something that strikes the underneath side of the
vehicle, have the exhaust system checked as soon as possible by an authorized HYUNDAI dealer.
Do not run the engine in an enclosed area.
Letting the engine idle in your garage, even with the garage door open, is a hazardous practice. Run the engine only
long enough to start the engine and to move the vehicle out of the garage.
Avoid idling the engine for prolonged periods with people inside the vehicle.
If it is necessary to idle the engine for a prolonged period with people inside the vehicle , be sure to do so only in an
open area with the air intake set at "Fresh" and fan control set to high so fresh air is drawn into the interior.
Keep the air intakes clear.
To assure proper operation of the ventilation system, keep the ventilation air intakes located in front of the windshield
clear of snow, ice, leaves, or other obstructions.
If you must drive with the liftgate open:
Close all windows.
Open instrument panel air vents.
Set the air intake control at "Fresh", the air flow control at "Floor" or "Face", and the fan control set to high.
WARNING