service HYUNDAI TUCSON 2023 Service Manual

09
9-39
Wheel alignment and tire
balance
The wheels on your vehicle were
aligned and balanced carefully at the
factory to give you the longest tire
life and best overall performance.
In most cases, you will not need to
have your wheels aligned again.
However, if you notice unusual tire
wear or your vehicle pulling one way
or the other, the alignment may need
to be reset.
If you notice your vehicle vibrating
when driving on a smooth road, your
wheels may need to be rebalanced.
NOTICE
Incorrect wheel weights can damage
your vehicle’s aluminum wheels. Use
only approved wheel weights.
Tire replacement
Tread wear indicatorTread wear indicator
OHI078080
If the tire is worn evenly, a tread
wear indicator will appear as a solid
band across the tread. This shows
there is less than 1/16 inch (1.6mm) of
tread left on the tire. Replace the tire
when this happens.
Do not wait for the band to appear
across the entire tread before
replacing the tire.
WARNING
To reduce the risk of DEATH or
SERIOUS INJURY:
• Replace tires that are worn, show
uneven wear, or are damaged.
Worn tires can cause loss of
braking effectiveness, steering
control, and traction.
• Always replace tires with the
same size as each tire that was
originally supplied with this
vehicle. Using tires and wheels
other than the recommended
sizes could cause unusual
handling characteristics, poor
vehicle control, or negatively
affect your vehicle’s Anti-Lock
Brake System (ABS) resulting in a
serious accident.
• When replacing tires (or wheels),
it is recommended to replace
the two front or two rear tires (or
wheels) as a pair. Replacing just
one tire can seriously affect your
vehicle’s handling.
• Tires degrade over time, even
when they are not being used.
Regardless of the remaining
tread, HYUNDAI recommends
that tires be replaced after six (6)
years of normal service.
• Heat caused by hot climates or
frequent high loading conditions
can accelerate the aging process.
Failure to follow this warning
may cause sudden tire failure,
which could lead to a loss of
vehicle control resulting in an
accident.

09
9-43
7. Uniform tire quality grading
Quality grades can be found where
applicable on the tire sidewall
between tread shoulder and
maximum section width.
For example:
TREADWEAR 200
TRACTION AA
TEMPERATURE A
Tread wear
The tread wear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test course.
For example, a tire graded 150 would
wear one-and-a-half times (1½) as
well on the government course as a
tire graded 100.
The relative performance of tires
depends upon the actual conditions
of their use, however, and may
depart significantly from the norm
due to variations in driving habits,
service practices and differences in
road characteristics and climate.
These grades are molded on the
sidewalls of passenger vehicle tires.
The tires available as standard or
optional equipment on your vehicle
may vary with respect to grade.
Traction - AA, A, B & C
The traction grades, from highest
to lowest, are AA, A, B and C. Those
grades represent the tire’s ability to
stop on wet pavement as measured
under controlled conditions on
specified government test surfaces
of asphalt and concrete. A tire
marked C may have poor traction
performance.
WARNING
The traction grade assigned to
this tire is based on straight ahead
braking traction tests, and does not
include acceleration, cornering,
hydroplaning, or peak traction
characteristics.
Temperature - A, B & C
The temperature grades are A (the
highest), B and C representing the
tire’s resistance to the generation
of heat and its ability to dissipate
heat when tested under controlled
conditions on a specified indoor
laboratory test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life,
and excessive temperature can
lead to sudden tire failure. Grades
B and A represent higher levels of
performance on the laboratory test
wheel than the minimum required
by law.

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
9-71
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

I
I-3
B
Battery ................................................................................................................. 9-32
Battery capacity label ....................................................................................... 9-34
Battery recharging ............................................................................................ 9-34
For best battery service .................................................................................... 9-33
Reset items ....................................................................................................... 9-35
Before driving ........................................................................................................ 6-4
Before entering the vehicle ................................................................................ 6-4
Before starting .................................................................................................... 6-4
Blind-Spot Collision-Avoidance Assist (BCA) .................................................. 7-37
Blind- Spot Safety System Malfunction and Limitations ................................ 7-46
Blind- Spot Safety System Operation .............................................................. 7-41
Blind- Spot Safety System Settings ................................................................. 7-39
Blind-Spot View Monitor (BVM) ...................................................................... 7-71
Blind-Spot View Monitor Malfunction ............................................................ 7-72
Blind-Spot View Monitor Operation ................................................................ 7-71
Blind-Spot View Monitor Settings ................................................................... 7-71
Brake fluid ........................................................................................................... 9-23
Checking the brake fluid level ......................................................................... 9-23
Braking system .................................................................................................... 6-25
Anti-lock Brake System (ABS) ........................................................................ 6-34
Auto Hold ......................................................................................................... 6-30
Disc brakes wear indicator ............................................................................... 6-25
Downhill Brake Control (DBC) ...................................................................... 6-40
Electronic Parking Brake (EPB) ..................................................................... 6-26
Electronic Stability Control (ESC) ................................................................... 6-35
Good braking practices ..................................................................................... 6-43
Hill-Start Assist Control (HAC) ...................................................................... 6-40
Power-assist brakes .......................................................................................... 6-25
Trailer Stability Assist (TSA) .......................................................................... 6-39
Vehicle Stability Management (VSM) ............................................................ 6-38
Bulb wattage ........................................................................................................ 2-11
010_NX4a_HMA_INDEX.indd I-32021-03-02  5:44:47

I
I-9
L
Lane Following Assist (LFA) ............................................................................ 7-101
Lane Following Assist Malfunction and Limitations ..................................... 7-104
Lane Following Assist Operation ................................................................... 7-102
Lane Following Assist Settings ...................................................................... 7-101
Lane Keeping Assist (LKA) ............................................................................... 7-31
Lane Keeping Assist Malfunction and Limitations .......................................... 7-35
Lane Keeping Assist Operation ........................................................................ 7-33
Lane Keeping Assist Settings .......................................................................... 7-31
LCD display ......................................................................................................... 4-29
LCD display control ......................................................................................... 4-29
Trip computer (Type A) .................................................................................... 4-40
Trip computer (Type B) .................................................................................... 4-43
User settings mode ........................................................................................... 4-33
View modes ...................................................................................................... 4-30
Light bulbs ........................................................................................................... 9-54
Headlamp, position lamp, turn signal lamp, Daytime Running Light (DRL)
replacement ....................................................................................................... 9-55
High mounted stop lamp replacement .............................................................. 9-60
Interior light replacement ................................................................................. 9-61
License plate lamp replacement ....................................................................... 9-60
Rear combination lamp replacement ................................................................ 9-56
Side repeater lamp replacement ....................................................................... 9-56
Lighting ............................................................................................................... 5-80
Exterior lights ................................................................................................... 5-80
M
Maintenance services ............................................................................................. 9-4
Owner maintenance precautions ........................................................................ 9-4
Owner’s responsibility ....................................................................................... 9-4
Manual climate control system ............................................................................ 5-99
Heating and air conditioning .......................................................................... 5-100
System maintenance ....................................................................................... 5-106
System operation ............................................................................................ 5-104
Manual Speed Limit Assist (MSLA) .................................................................. 7-57
Manual Speed Limit Assist Operation ........................................................... 7-57
Mirrors ................................................................................................................. 5-43
Inside rearview mirror ...................................................................................... 5-43
Side View mirrors ............................................................................................. 5-53
010_NX4a_HMA_INDEX.indd I-92021-03-02  5:44:48

I
I-11
Reverse Parking Collision-Avoidance Assist (PCA) ........................................ 7-141
Reverse Parking Collision-Avoidance Assist Malfunction and Limitations .. 7-144
Reverse Parking Collision-Avoidance Assist Operation ................................ 7-143
Reverse Parking Collision-Avoidance Assist Settings ................................... 7-141
Reverse Parking Distance Warning (PDW) ....................................................... 7-133
Reverse Parking Distance Warning Malfunction and Precautions ................ 7-134
Reverse Parking Distance Warning Settings ................................................. 7-133
System Operation ........................................................................................... 7-133
S
Safe Exit Warning (SEW) ................................................................................... 7-51
Safe Exit Warning Malfunction and Limitations.............................................. 7-55
Safe Exit Warning Operation............................................................................ 7-53
Safe Exit Warning Settings ............................................................................... 7-52
Scheduled maintenance services............................................................................ 9-7
Maintenance under severe usage conditions .................................................... 9-12
Normal maintenance schedule ........................................................................... 9-8
Seat belts .............................................................................................................. 3-24
Additional seat belt safety precautions ............................................................. 3-32
Care of seat belts .............................................................................................. 3-34
Seat belt restraint system .................................................................................. 3-26
Seat belt safety precautions .............................................................................. 3-24
Seat belt warning light ...................................................................................... 3-25
Seats ....................................................................................................................... 3-3
Air ventilation seat ........................................................................................... 3-20
Front seats .......................................................................................................... 3-5
Head Restraints ................................................................................................ 3-14
Rear Occupant Alert (ROA) ............................................................................ 3-22
Rear seats .......................................................................................................... 3-10
Safety precautions .............................................................................................. 3-4
Seat warmers .................................................................................................... 3-18
Smart Cruise Control (SCC) ............................................................................... 7-77
Smart Cruise Control Display and Control ..................................................... 7-83
Smart Cruise Control Malfunction and Limitations ......................................... 7-88
Smart Cruise Control Operation ....................................................................... 7-82
Smart Cruise Control Settings .......................................................................... 7-78
010_NX4a_HMA_INDEX.indd I-112021-03-02  5:44:48

I
I-13
Tires and wheels ........................................................................................ 2-12/ 9-36
Check tire inflation pressure ............................................................................ 9-37
Low aspect ratio tires ....................................................................................... 9-44
Recommended cold tire inflation pressures ..................................................... 9-36
Tire care ............................................................................................................ 9-36
Tire maintenance .............................................................................................. 9-40
Tire replacement ............................................................................................... 9-39
Tire rotation ...................................................................................................... 9-38
Tire sidewall labeling ....................................................................................... 9-41
Tire traction ...................................................................................................... 9-40
Wheel alignment and tire balance .................................................................... 9-39
Wheel replacement ........................................................................................... 9-40
Towing ................................................................................................................. 8-21
Towing service ................................................................................................. 8-21
Trailer towing ...................................................................................................... 6-65
Driving with a trailer ........................................................................................ 6-70
If you decide to pull a trailer? .......................................................................... 6-66
Maintenance when towing a trailer .................................................................. 6-73
Trailer towing equipment ................................................................................. 6-69
V
Vehicle Auto-shut Off .......................................................................................... 6-13
Deactivating Conditions ................................................................................... 6-13
Operating Conditions ....................................................................................... 6-13
System Operation ............................................................................................. 6-13
Vehicle certification label .................................................................................... 2-16
Vehicle Identification Number (VIN) .................................................................. 2-16
Vehicle load limit ................................................................................................. 6-74
The Loading Information Label ....................................................................... 6-75
Vehicle settings (infotainment system) ............................................................... 4-46
Setting your vehicle ......................................................................................... 4-46
Volume and weight .............................................................................................. 2-13
010_NX4a_HMA_INDEX.indd I-132021-03-02  5:44:48