2022 HYUNDAI TUCSON engine

Maintenance
9-58
ONX4090027
Tail lamp (Inside)
1. Turn off the engine.
2. Open the liftgate.
3. Remove the service cover using a
flat-blade screwdriver.
4. Remove the socket from the
assembly by turning the socket
counterclockwise until the tabs on
the socket align with the slots on the
assembly.
ONX4090028
5. Remove the bulb from the socket
by pressing it in and rotating it
counterclockwise until the tabs on the
bulb align with the slots in the socket.
Pull the bulb out of the socket.
6. Insert a new bulb by inserting it into
the socket and rotating it until it locks
into place.
7. Install the socket into the assembly by
aligning the tabs on the socket with
the slots in the assembly. Push the
socket into the assembly and turn the
socket clockwise.
8. Reinstall the lamp assembly to the
body of the vehicle.

09
9-59
Turn signal lamp/Reverse lamp
1. Turn off the engine.
2. Remove the socket from the
assembly by turning the socket
counterclockwise until the tabs on
the socket align with the slots on the
assembly.
3. Remove the bulb from the socket
by pressing it in and rotating it
counterclockwise until the tabs on the
bulb align with the slots in the socket.
Pull the bulb out of the socket.
4. Insert a new bulb by inserting it into
the socket and rotating it until it locks
into place.
„„Turn signal lamp
ONX4090029
„„Reverse lamp
ONX4090030
Stop&Tail lamp/Rear side marker (LED
type)
If the LED lamp does not operate,
we recommend that the system be
inspected by an authorized HYUNDAI
dealer.
The LED lamps cannot be replaced as
a single unit because it is an integrated
unit. The LED lamps has to be replaced
with the unit.
A skilled technician should check or
repair the LED lamp, for it may damage
related parts of the vehicle.

Maintenance
9-64
NOTICE
ONX4090036
• Water washing in the engine
compartment including high
pressure water washing may cause
the failure of electrical circuits
located in the engine compartment.
• Never allow water or other liquids
to come in contact with electrical/
electronic components inside the
vehicle as this may damage them.
NOTICE
Matte paint finish vehicle (if equipped)
Automatic car wash which uses rotating
brushes should not be used as this can
damage the surface of your vehicle. A
steam cleaner which washes the vehicle
surface at high temperature may result
the oil to adhere and leave stains that is
difficult to remove.
Use a soft cloth (e.g. microfiber towel
or sponge) when washing your vehicle
and dry with a microfiber towel. When
you hand wash your vehicle, you should
not use a cleaner that finishes with wax.
If the vehicle surface is too dirty (sand,
dirt, dust, contaminant, etc.), clean the
surface with water before washing the
car.
Waxing
A good coat of wax is a barrier between
your paint and contaminate. Keeping
a good coat of wax on your vehicle will
help protect it.
Wax the vehicle when water will no
longer bead on the paint.
Always wash and dry the vehicle before
waxing. Use a good quality liquid or
paste wax, and follow the manufacturer’s
instructions. Wax all metal trim to protect
it and to maintain its luster.
Removing oil, tar, and similar materials
with a spot remover will usually strip the
wax from the finish. Be sure to re-wax
these areas even if the rest of the vehicle
does not yet need waxing.
NOTICE
• Wiping dust or dirt off the body with
a dry cloth will scratch the finish.
• Do not use steel wool, abrasive
cleaners, or strong detergents
containing highly alkaline or
caustic agents on chrome-plated or
anodized aluminum parts. This may
result in damage to the protective
coating and cause discoloration or
paint deterioration.
NOTICE
Matte paint finish vehicle (if equipped)
Do not use any polish protector such as
a detergent, an abrasive and a polish.
In case wax is applied, remove the wax
immediately using a silicon remover
and if any tar or tar contaminant is on
the surface use a tar remover to clean.
However, be careful not to apply too
much pressure on the painted area.

09
9-71
The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty
information contained in the Service
Passport in your vehicle.
Your vehicle is equipped with an
emission control system to meet all
applicable emission regulations. There
are three emission control systems, as
follows.
(1) Crankcase emission control system
(2) Evaporative emission control system
(3) Exhaust emission control system
In order to ensure the proper function
of the emission control systems, it
is recommended that you have your
vehicle inspected and maintained
by an authorized HYUNDAI dealer in
accordance with the maintenance
schedule in this manual.
NOTICE
For the Inspection and Maintenance
Test (with Electronic Stability Control
(ESC) system)
• To prevent the vehicle from misfiring
during dynamometer testing, turn
the Electronic Stability Control
(ESC) system off by pressing the ESC
switch (ESC OFF light illuminated).
• After dynamometer testing is
completed, turn the ESC system back
on by pressing the ESC switch again.
1. Crankcase emission control
system
The positive crankcase ventilation system
is employed to prevent air pollution
caused by blow-by gases being emitted
from the crankcase. This system supplies
fresh filtered air to the crankcase through
the air intake hose. Inside the crankcase,
the fresh air mixes with blow-by gases,
which then pass through the PCV valve
into the induction system.
2. Evaporative emission control
system
The Evaporative Emission Control System
is designed to prevent fuel vapors from
escaping into the atmosphere.
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in the
canister are drawn into the surge tank
through the purge control solenoid valve.
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve
is controlled by the Engine Control
Module (ECM); when the engine coolant
temperature is low during idling, the
PCSV closes so that evaporated fuel
is not taken into the engine. After the
engine warms-up during ordinary
driving, the PCSV opens to introduce
evaporated fuel to the engine.
EMISSION CONTROL SYSTEM

Maintenance
9-72
3. Exhaust emission control
system
The Exhaust Emission Control System is
a highly effective system which controls
exhaust emissions while maintaining
good vehicle performance.
When the engine starts or fails to start,
excessive attempts to restart the engine
may cause damage to the emission
system.
Engine exhaust (carbon monoxide)
precautions
• Carbon monoxide can be present
with other exhaust fumes. If you smell
exhaust fumes of any kind in your
vehicle, drive with all the windows
fully open. Have your vehicle checked
and repaired immediately.
WARNING
Engine exhaust gases contain carbon
monoxide (CO). Though colorless and
odorless, it is dangerous and could be
lethal if inhaled. Follow the instructions
on this page to avoid CO poisoning.
WARNING
CALIFORNIA PROPOSITION 65
WARNING
Engine exhaust and a wide variety of
automobile components and parts,
including components found in the
interior furnishings in a vehicle, contain
or emit chemicals known to the State
of California to cause cancer and
birth defects and reproductive harm.
In addition, certain fluids contained
in vehicles and certain products of
component wear contain or emit
chemicals known to the State of
California to cause cancer and birth
defects or other reproductive harm. •
Do not operate the engine in confined
or closed areas (such as garages) any
more than what is necessary to move
the vehicle in or out of the area.
• When the vehicle is stopped in an
open area for more than a short time
with the engine running, adjust the
ventilation system (as needed) to draw
outside air into the vehicle.
• Never sit in a parked or stopped
vehicle for any extended time with the
engine running.
• When the engine stalls or fails to
start, excessive attempts to restart
the engine may cause damage to the
emission control system.
Operating precautions for catalytic
converters (if equipped)
WARNING
The exhaust system and catalytic
converter are very hot during and
immediately after the engine has been
running. To avoid SERIOUS INJURY or
DEATH:
• Do not park, idle, or drive the vehicle
over or near flammable objects, such
as grass, vegetation, paper, leaves,
etc. A hot exhaust system can ignite
flammable items under your vehicle.
• Keep away from the exhaust system
and catalytic converter or you may
get burned.
Also, do not remove the heat sink
around the exhaust system, do not
seal the bottom of the vehicle, and
do not coat the vehicle for corrosion
control. It may present a fire risk
under certain conditions.

09
9-73
Your vehicle is equipped with a catalytic
converter emission control device.
To prevent damage to the catalytic
converter and to your vehicle, take the
following precautions:
• Use only UNLEADED FUEL for
gasoline engines.
• Do not operate the vehicle when
there are signs of engine malfunction,
such as misfire or a noticeable loss of
performance.
• Do not misuse or abuse the engine.
Examples of misuse are coasting with
the engine off and descending steep
grades in gear with the engine off.
• Do not operate the engine at high
idle speed for extended periods (5
minutes or more).
• Do not modify or tamper with any
part of the engine or emission control
system. We recommend that all
inspections and adjustments are
made by an authorized HYUNDAI
dealer.
• Avoid driving with an extremely low
fuel level.
Running out of fuel could cause the
engine to misfire, damaging the
catalytic converter.Gasoline Particulate Filter (GPF)
(if equipped)
Gasoline Particulate Filter (GPF) system
removes the soot in the exhaust gas.
The GPF system automatically burns
(or oxidizes) the accumulated soot in
accordance with driving situations,
unlike a disposable air filter.
In other words, the accumulated soot is
automatically purged out by the engine
control system and by the high exhaust-
gas temperature at normal/ high driving
speeds. However, when the vehicle is
continually driven at repeated short
distances or driven at low speed for a
long time, the accumulated soot may
not be automatically removed because
of low exhaust gas temperature. In this
case, the accumulated soot may reach
a certain amount regardless of the soot
oxidization process, then the GPF lamp
(
) will illuminate.
The Gasoline Particulate Filter (GPF)
lamp stops illuminating, when the driving
speed exceeds 50 mph (80 km/h) with
engine RPM 1,500 ~ 4,000 and the
gear in the 3rd position or above for
approximately 30 minutes.
When the GPF lamp starts to blink or
the warning message “Check exhaust
system” pops up even though the
vehicle was driven as mentioned above,
we recommend that you have the
GPF system checked by an authorized
HYUNDAI dealer.
With GPF lamp blinking for an extended
period of time, it may damage the GPF
system and lower the fuel economy.
CAUTION
We recommend you to use only the
regulated gasoline fuels, when your
vehicle is equipped with the GPF
system.
When you use other gasoline fuels
which contain unspecified additives,
they may damage the GPF system and
cause exhaust emission problems.

I
I-5
E
Emission control system ...................................................................................... 9-71
Engine .................................................................................................................. 2-10
Engine compartment ....................................................................................... 2-9/9-3
Engine coolant .................................................................................................... 9-20
Changing coolant .............................................................................................. 9-22
Checking the coolant level ............................................................................... 9-20
Engine number ..................................................................................................... 2-17
Engine oil ............................................................................................................. 9-17
Checking the Engine Oil and Filter .................................................................. 9-19
Checking the engine oil level ........................................................................... 9-17
Engine Start/Stop button ........................................................................................ 6-8
Engine Stop/Start button positions ..................................................................... 6-9
Remote start ...................................................................................................... 6-12
Starting the engine ............................................................................................ 6-10
Turning off the engine ...................................................................................... 6-11
Explanation of scheduled maintenance items ...................................................... 9-14
Fuel filter .......................................................................................................... 9-14
Parking brake .................................................................................................... 9-16
Exterior features........................................................................................ 5-70/5-140
Fuel filler door .................................................................................................. 5-81
Hood ................................................................................................................. 5-70
Liftgate ............................................................................................................. 5-71
Power liftgate ................................................................................................... 5-73
Roof rack ....................................................................................................... 5-140
Smart liftgate .................................................................................................... 5-79
Exterior overview (I) ............................................................................................. 2-2
Exterior overview (II) ............................................................................................ 2-3
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IndexI-6
F
Forward Collision–Avoidance Assist (FCA) (Front view camera only) ............... 7-2
Forward Collision-Avoidance Assist malfunction and limitations..................... 7-7
Forward Collision-Avoidance Assist operation .................................................. 7-5
Forward Collision-Avoidance Assist settings..................................................... 7-3
Forward Collision–Avoidance Assist (FCA) (Sensor fusion) ............................. 7-15
Forward Collision-Avoidance Assist Malfunction and Limitations ................. 7-23
Forward Collision-Avoidance Assist operation ................................................ 7-19
Forward Collision-Avoidance Assist settings................................................... 7-17
Forward/Reverse Parking Distance Warning (PDW) ........................................ 7-136
Forward/Reverse Parking Distance Warning Malfunction and Precautions .. 7-139
Forward/Reverse Parking Distance Warning Operation ................................ 7-137
Forward/Reverse Parking Distance Warning Settings ................................... 7-136
Fuses .................................................................................................................... 9-45
Engine compartment panel fuse replacement ................................................... 9-47
Fuse/relay panel description ............................................................................. 9-48
Instrument panel fuse replacement ................................................................... 9-46
H
Hazard warning flasher .......................................................................................... 8-2
High Beam Assist (HBA) ................................................................................... 5-88
System malfunction and limitations ................................................................. 5-89
System operation .............................................................................................. 5-89
System settings ................................................................................................. 5-88
Highway Driving Assist (HDA) ........................................................................ 7-105
Highway Driving Assist Malfunction and Limitations .................................. 7-109
Highway Driving Assist Operation ................................................................ 7-107
Highway Driving Assist Settings ................................................................... 7-106
I
Idle Stop and Go (ISG) system ............................................................................ 6-44
Forced to restart engine .................................................................................... 6-48
ISG malfunction ............................................................................................... 6-48
ISG system off ................................................................................................. 6-47
ISG system operation ...................................................................................... 6-44
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