2021 HYUNDAI TUCSON Brake

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Maintenance
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Consult an authorized HYUNDAI
dealer to replace most vehicle light
bulbs. It is difficult to replace vehicle
light bulbs because other parts of the
vehicle must be removed before you
can get to the bulb. This is especially
true for removing the headlamp
assembly to get to the bulb(s).
Removing/installing the headlamp
assembly can result in damage to
the vehicle.
Information
The headlamp and tail lamp lenses
could appear frosty if the vehicle is
washed after driving or the vehicle is
driven at night in wet weather. This
condition is caused by temperature
difference between the lamp inside
and outside and, it does not indicate a
problem with your vehicle. When
moisture condenses in the lamp, it will
be removed after driving with the
headlamp on. The removable level
may differ depending on lamp size,
lamp position and environmental con-
dition. However, if moisture is not
removed, we recommend that your
vehicle is inspected by an authorized
HYUNDAI dealer.
Information - Desiccant
(if equipped)
This vehicle is equipped with desic-
cant to reduce fogging inside the head-
lamp due to moisture.
The desiccant is consumable and its
performance may change based on the
used period or environment.
If fogging inside the headlamp due to
moisture continues for a long time,
have your vehicle checked by an
authorized HYUNDAI dealer. i
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Prior to replacing a lamp,
depress the brake pedal,
move the shift lever into P
(Park) apply the parking
brake, place the igntion
switch to the LOCK/OFF posi-
tion, and take the key with you
when leaving the vehicle to
avoid sudden movement of
the vehicle and to prevent
possible electric shock.
Be aware the bulbs may be
hot and may burn your fin-
gers.
WARNING

7-75
7
Maintenance
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Exterior Care
Exterior general caution
It is very important to follow the label
directions when using any chemical
cleaner or polish. Read all warning
and caution statements that appear
on the label.
Protecting your vehicle’s finish
Washing
To help protect your vehicle’s finish
from rust and deterioration, wash it
thoroughly and frequently at least
once a month with lukewarm or cold
water.
If you use your vehicle for off-road
driving, you should wash it after each
off-road trip. Pay special attention to
the removal of any accumulation of
salt, dirt, mud, and other foreign
materials. Make sure the drain holes
in the lower edges of the doors and
rocker panels are kept clear and
clean.
Insects, tar, tree sap, bird droppings,
industrial pollution and similar
deposits can damage your vehicle’s
finish if not removed immediately.
Even prompt washing with plain
water may not completely remove all
these deposits. A mild soap, safe for
use on painted surfaces, should be
used.
After washing, rinse the vehicle thor-
oughly with lukewarm or cold water.
Do not allow soap to dry on the fin-
ish. Do not use strong soap, chemi-
cal detergents or hot water, and
do not wash the vehicle in direct
sunlight or when the body of the
vehicle is warm.
Be careful when washing the side windows of your vehicle.
Especially, with high-pressure
water, water may leak through
the windows and wet the interi-
or.
To prevent damage to the plastic parts, do not clean with chemi-
cal solvents or strong deter-
gents.
NOTICE
After washing the vehicle, test
the brakes while driving slowly
to see if they have been affected
by water before getting on the
road. If braking performance is
impaired, dry the brakes by
applying them lightly while main-
taining a slow forward speed.
WARNING

7-78
Maintenance
Bright-metal maintenance
To remove road tar and insects,use a tar remover, not a scraper or
other sharp object.
To protect the surfaces of bright- metal parts from corrosion, apply a
coating of wax or chrome preser-
vative and rub to a high luster.
During winter weather or in coastal areas, cover the bright metal parts
with a heavier coating of wax or
preservative. If necessary, coat the
parts with non-corrosive petroleum
jelly or other protective compound.
Underbody maintenance
Corrosive materials used for ice and
snow removal and dust control may
collect on the underbody. If these
materials are not removed, acceler-
ated rusting can occur on underbody
parts such as the fuel lines, frame,
floor pan and exhaust system, even
though they have been treated with
rust protection. Thoroughly flush the vehicle under-
body and wheel openings with luke-
warm or cold water once a month,
after off-road driving and at the end
of each winter. Pay special attention
to these areas because it is difficult
to see all the mud and dirt. It will do
more harm than good to wet down
the road grime without removing it.
The lower edges of doors, rocker
panels, and frame members have
drain holes that should not be
allowed to clog with dirt; trapped
water in these areas can cause rust-
ing.
Aluminum wheel maintenance
The aluminum wheels are coated
with a clear protective finish.
Do not use abrasive cleaner, pol-
ishing compound, solvent, or
wire brushes on aluminum
wheels.
Clean the wheel when it has cooled.
Use only a mild soap or neutral detergent, and rinse thoroughly
with water. Also, clean the
wheels after driving on salted
roads.
Do not wash the wheels with high-speed car wash brushes.
Do not use any cleaners con- taining acid or alkaline deter-
gents.
NOTICE
After washing the vehicle, test
the brakes while driving slowly
to see if they have been affected
by water. If braking performance
is impaired, dry the brakes by
applying them lightly while
maintaining a slow forward
speed.
WARNING

8-9
88
Specifications, Consumer information and Reporting safety defects
*1: Refer to the recommended SAE viscosity numbers on the next page.
*
2: Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel econ-
omy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure
in everyday driving, but in a year’s time, they can offer significant cost and energy savings.Lubricant Volume Classification
Brake fluid0.74~0.85 US qt.
(0.7~0.8 l)FMVSS116 DOT-3 or DOT-4
Rear differential oil (AWD)0.56~0.67 US qt.
(0.53~0.63 l)HYPOID GEAR OIL API GL-5, SAE75W/85
(SK HCT-5 GEAR OIL 75W/85 or equivalent)
Transfer case oil (AWD)2.0 GDI
0.45~0.5 US qt.
(0.43~0.47 l)HYPOID GEAR OIL API GL-5, SAE75W/85
(SK HCT-5 GEAR OIL 75W/85 or equivalent)
2.4 GDI
Fuel16.38 US gal. (62 l)
Refer to "Fuel requirements" in foreword section

I-2
Accessing Your Vehicle ....................................................3-4
Immobilizer System ...................................................3-13
Remote Key ..................................................................3-4
Smart Key.....................................................................3-8
Air Bag - Advanced Supplemental Restraint System.....2-48
Additional Safety Precautions ....................................2-72
Air Bag Warning Labels.............................................2-73
Curtain air bags ..........................................................2-53
Driver's front air bag ..................................................2-50
How Does the Air Bag System Operate? ...................2-54
Occupant Classification System (OCS) .....................2-59
Passenger's front air bag.............................................2-50
Side air bags ...............................................................2-51
SRS Care ....................................................................2-71
What to Expect After an Air Bag Inflates ..................2-58
Where Are the Air Bags? ...........................................2-50
Why Didn't My Air Bag Go Off in a Collision?........2-65
Air Cleaner......................................................................7-25
Filter Replacement .....................................................7-25
Air Conditioning System ..................................................8-7
All Wheel Drive (AWD) .................................................5-43
AWD operation...........................................................5-45
Emergency precautions ..............................................5-49
Anti-lock Brake System (ABS) ......................................5-33Appearance Care .............................................................7-75
Exterior Care ..............................................................7-75
Interior Care ...............................................................7-80
Auto Hold .......................................................................5-30
Automatic Climate Control System..............................3-137
Automatic Heating and Air Conditioning ................3-138
Manual Heating and Air Conditioning .....................3-139
System Maintenance ................................................3-148
System Operation .....................................................3-146
Automatic Transmission .................................................5-14
Automatic transmission operation..............................5-14
Good Driving Practices ..............................................5-19
Battery .............................................................................7-33
Battery Recharging .....................................................7-34
For Best Battery Service ............................................7-34
Reset Features ............................................................7-35
Before Driving ..................................................................5-4
Before Entering the Vehicle .........................................5-4
Before Starting .............................................................5-4
Blind-Spot Collision Warning (BCW) System ...............5-52
BCW (Blind-Spot Collision Warning) .......................5-53
Blind-Spot Collision Warning - Sensor Location ......5-57
Limitations of the System ..........................................5-58
RCCW (Rear Cross-Traffic Collision Warning) ........5-55
Index
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Brake Fluid .....................................................................7-23
Checking the Brake Fluid Level ................................7-23
Braking System ...............................................................5-21
Anti-lock Brake System (ABS)..................................5-33
Auto Hold ...................................................................5-30
Disc Brakes Wear Indicator........................................5-22
Downhill Brake Control (DBC) .................................5-40
Electronic Parking Brake (EPB) ................................5-24
Electronic Stability Control (ESC).............................5-35
Good Braking Practices..............................................5-42
Hill-Start Assist Control (HAC) .................................5-40
Parking Brake .............................................................5-22
Power Brakes..............................................................5-21
Vehicle Stability Management (VSM) .......................5-39
Bulb Wattage .....................................................................8-4
California Perchlorate Notice .........................................7-87
Cargo Net Holder ..........................................................3-167
Cargo Security Screen ..................................................3-167
Center Console Storage ................................................3-157
Child Restraint System (CRS) ........................................2-38
Children Always in the Rear ......................................2-38
Installing a Child Restraint System (CRS) ................2-41
Selecting a Child Restraint System (CRS).................2-39Climate Control Additional Features ............................3-156
Automatic Ventilation...............................................3-156
Cluster ionizer ..........................................................3-156
Sunroof Inside Air Recirculation .............................3-156
Climate Control Air Filter...............................................7-27
Filter Inspection..........................................................7-27
Clock .............................................................................3-165
Clothes Hanger .............................................................3-165
Consumer Information ....................................................8-13
Cruise Control ...............................................................5-100
Cruise Control operation ..........................................5-100
Cup Holder....................................................................3-159
Curtain air bags ...............................................................2-53
Declaration of conformity .............................................5-59
The radio frequency components
(Rear Corner Radar) complies: ..................................5-59
Dimensions .......................................................................8-2
Disc Brakes Wear Indicator ............................................5-22
Door Locks .....................................................................3-15
Automatic Door Lock and Unlock Features ..............3-18
Child-Protector Rear Door locks................................3-19
Operating Door Locks from Inside the Vehicle .........3-16
Operating Door Locks from Outside the Vehicle ......3-15
Downhill Brake Control (DBC) .....................................5-40
Drive Mode Integrated Control System .........................5-51
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Index
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I-4
Driver Assist System.....................................................3-124
Rear View Monitor ...................................................3-124
Surround View Monitor ...........................................3-125
Driver Attention Warning (DAW) System......................5-96
Resetting the System ..................................................5-97
System Malfunction ...................................................5-98
System Setting and Activation ...................................5-96
System Standby ..........................................................5-98
Driver's front air bag .......................................................2-50
Electric Power Steering (EPS) ........................................3-21
Electronic Parking Brake (EPB) .....................................5-24
Electronic Stability Control (ESC) .................................5-35
Emission Control System ...............................................7-83
Crankcase Emission Control System .........................7-83
Evaporative Emission Control System Including
Onboard Refueling Vapor Recovery (ORVR) ........7-83
Exhaust Emission Control System .............................7-84
Engine ...............................................................................8-2
Engine compartment..................................................1-6, 7-3
Engine Coolant ...............................................................7-19
Changing Engine Coolant ..........................................7-22
Checking the Engine Coolant Level ..........................7-19
Engine Number ...............................................................8-12
Engine Oil .......................................................................7-17
Checking the Engine Oil and Filter ...........................7-18
Checking the Engine Oil Level ..................................7-17Explanation Of Scheduled Maintenance Items ..............7-14
Exterior Features .................................................3-47, 3-171
Fuel Filler Door ..........................................................3-48
Hood ...........................................................................3-47
Roof Rack.................................................................3-171
Exterior Lights ..............................................................3-107
AUTO headlamp position ........................................3-108
Battery saver function ..............................................3-114
Daytime running light (DRL) ..................................3-107
Front fog lamp ..........................................................3-114
Headlamp delay function..........................................3-115
Headlamp position....................................................3-109
High Beam Assist (HBA) .........................................3-110
High beam operation ................................................3-109
Lane change signals..................................................3-113
Parking lamp position ..............................................3-108
Turn signals ..............................................................3-113
Exterior overview .............................................................1-2
Floor Mat Anchor(s) .....................................................3-166
Forward Collision-Avoidance Assist (FCA) System
- Camera Type .............................................................5-60
FCA Sensor ................................................................5-65
FCA Warning Message and System Control..............5-63
Limitations of the System ..........................................5-68
System Not Operating ................................................5-67
System Setting and Activation ...................................5-60
Index
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I-8
Non-Powered liftgate ......................................................3-52
Owner Maintenance ..........................................................7-5
Owner Maintenance Schedule......................................7-6
Panoramic Sunroof .........................................................3-43
Closing the Sunroof....................................................3-45
Sliding the Sunroof ....................................................3-44
Sunshade.....................................................................3-44
Tilting the Sunroof .....................................................3-45
To Reset the Sunroof ..................................................3-46
Parking Brake ........................................................5-22, 7-24
Checking the Parking Brake ......................................7-24
Passenger's front air bag .................................................2-50
Plastic Bag Hook ..........................................................3-166
Power Brakes ..................................................................5-21
Power Liftgate.................................................................3-54
Power Outlet .................................................................3-161Rear Seat Heaters............................................................2-23
Rear Seats .......................................................................2-12
Rear View Monitor .......................................................3-124
Rear Window Wiper and Washer Switch .....................3-123
Recommended Lubricants and Capacities ........................8-8
Recommended SAE Viscosity Number .....................8-10
Remote Key ......................................................................3-4
Reporting Safety Defects ................................................8-14
Roof Rack .....................................................................3-171
Scheduled Maintenance Services .....................................7-8
Maintenance Under Severe Usage Conditions
(2.0 GDI, 2.4 GDI)..................................................7-12
Normal Maintenance Schedule
(2.0 GDI, 2.4 GDI)....................................................7-9
Severe Driving Conditions .........................................7-13
Seat Belts ........................................................................2-24
Additional Seat Belt Safety Precautions ....................2-34
Care of Seat Belts .......................................................2-37
Seat Belt Restraint System .........................................2-26
Seat Belt Safety Precautions ......................................2-24
Seat Belt Warning Light .............................................2-25
Index
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