2021 HYUNDAI TUCSON HYBRID climate control

09
9-23
Filter inspection
The cabin air filter should be replaced
according to the Maintenance Schedule.
If the vehicle is operated in severely air-
polluted cities or on dusty rough roads
for a long period, it should be inspected
more frequently and replaced sooner.
Replace the cabin air filter by following
the procedure below and be careful to
avoid damaging other components.
Filter replacement
ONX4090009
1. Remove the support rod (1).
ONX4090042
2. Push in both sides of the glove box as
shown. This will ensure that the glove
box stopper pins will get released
from its holding location allowing the
glove box to hang.
ONX4090010
3. Remove the climate control air filter
case while pr essing the lock on the
right side of the cover.
ONX4090011
4. Replace the climate control air filter.
5.
Reassemble in the r
everse order of
disassembly.
NOTICE
Install a new climate control air filter
in the correct direction with the
arrow symbol (↓) facing downwards,
otherwise, it may be noisy and the
effectiveness of the filter may be
reduced.
cabin air filtEr

Maintenance
9-30
• The negative battery cable must
be removed first and installed last
when the battery is disconnected.
Disconnect the battery charger in the
following order:
1.
Turn o

ff the battery charger main
switch.
2.
Unhook the nega

tive clamp from
the negative battery terminal.
3.
Unhook the positiv

e clamp from
the positive battery terminal.
• We recommend that you use
batteries for replacement from an
authorized HYUNDAI dealer.
NOTICE
AGM battery (if equipped)
• Absorbent Glass Matt (AGM)
batteries are maintenance-free
and we recommend that the AGM
battery be serviced by an authorized
HYUNDAI dealer. For charging
your AGM battery, use only fully
automatic battery chargers that
are specially developed for AGM
batteries.
• When replacing the AGM battery,
we recommend that you use parts
for replacement from an authorized
HYUNDAI dealer.
• Do not open or remove the cap on
top of the battery. This may cause
leaks of internal electrolyte that
could result in severe injury.
By jump starting
After a jump start from a good battery,
drive the vehicle for 20-30 minutes
before it is shutoff. The vehicle may
not restart if you shut it off before the
battery had a chance to adequately
recharge. See “Jump Starting” in chapter
9 for more information on jump starting
procedures.
Information
An inappropriately disposed
battery can be harmful to the
environment and human health.
Dispose of the battery according
to your local law(s) or regulation.
Reset items
The following items may need to be reset
after the battery has been discharged or
the battery has been disconnected.
• Auto up/down window (see chapter 5)
• Sunroof (see chapter 5)
• Trip computer (see chapter 5)
• Climate control system (see chapter 5)
• Driver position memory system (see
chapter 5)
• Clock (see chapter 5)
• Infotainment system (see
infotainment system manual)

Maintenance
9-34
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 in. (1.6 mm) 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.

Maintenance
9-38
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 straightahead
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.
WARNING
The temperature grade for this
tire is established for a tire that
is properly inflated and not
overloaded. Excessive speed,
under-inflation, over-inflation, or
excessive loading, either separately
or in combination, can cause heat
build-up and possible sudden
tire failure. This may cause loss
of vehicle control resulting in an
accident.

Index
I-2
A
Accessing your vehicle
........................................................................\
..................5-4
Hyundai Digital Key ........................................................................\
................5-16
Immobilizer system ........................................................................\
..................5-15
Remote key ........................................................................\
.................................5-4
Smart key ........................................................................\
....................................5-7
Air bag - supplemental restraint system
..............................................................3-44 Additional safety precautions ........................................................................\
...3-66
Air bag warning labels ........................................................................\
.............3-66
How does the air bags system operate? ............................................................3-50
Occupant Classification System (OCS) ...........................................................3-54
SRS care ........................................................................\
...................................3-65
What to expect after an air bag inflates ............................................................3-53
Where are the air bags? ........................................................................\
............3-46
Why didn’t my air bag go of f in a collision? ...................................................3-60
Air cleaner
........................................................................\
...................................9-22 Filter replacement ........................................................................\
.....................9-22
Air conditioner compressor label ........................................................................\
. 2-15
Air conditioning system
........................................................................\
...............2-11
All wheel drive (AWD)
........................................................................\
..............6-40
All Wheel Drive (AWD) operation ..................................................................6-41
Emergency precautions ........................................................................\
............6-45
Reducing the risk of a rollover ........................................................................\
.6-47
Appearance care ........................................................................\
........................... 9-59
Exterior care ........................................................................\
.............................9-59
Interior care ........................................................................\
..............................9-63
Automatic climate control system
.......................................................................5-96
Automatic heating and air conditioning ...........................................................5-97
Manual heating and air conditioning ................................................................5-98
Multi Air Mode........................................................................\
....................... 5-105
System maintenance ........................................................................\
...............5-108
System operation ........................................................................\
....................5-106
Automatic transmission
........................................................................\
...............6-13
Automatic transmission operation ....................................................................6-13
Good driving practices ........................................................................\
.............6-18
LCD display message ........................................................................\
...............6-17
Paddle shifter ........................................................................\
............................6-18
Parking ........................................................................\
.....................................6-16

Index
I-4
C
Cabin air filter
........................................................................\
..............................9-23
Filter inspection ........................................................................\
........................9-23
Filter replacement ........................................................................\
.....................9-23
California perchlorate notice
........................................................................\
.......9-70
Child Restraint System (CRS)
........................................................................\
.....3-33
Installing a Child Restraint System (CRS) .......................................................3-36
Our recommendation: Children always in the rear ..........................................3-33
Selecting a Child Restraint System (CRS) .......................................................3-34
Climate control additional features
....................................................................5-113
Auto Defogging System on Models with Automatic Temperature Control ...5-113
Auto dehumidify ........................................................................\
....................5-114
Automatic Controls for the Driver Based on
Climate Control System Settings ....................................................................5-115
Recirculating air when washer fluid is used ...................................................5-115
Sunroof inside air recirculation ......................................................................5-115
Coasting guide
........................................................................\
.............................6-20
Consumer Information
........................................................................\
.................2-16
Cruise Control (CC)
........................................................................\
....................7-65
System operation ........................................................................\
.....................7-65
D
Declaration of conformity ........................................................................\
.......... 7-136
Dimensions
........................................................................\
....................................2-8
Door locks
........................................................................\
....................................5-32
Auto door lock/unlock features ........................................................................\
5-36
Child-protector rear door locks ........................................................................\
5-36
Operating door locks from outside the vehicle ................................................5-32
Operating door unlocks from inside the vehicle ..............................................5-34
Drive mode integrated control system (AWD)
....................................................6-48
Drive mode ........................................................................\
...............................6-48
Driving at night ........................................................................\
........................6-52
Driving in flooded areas ........................................................................\
...........6-53
Driving in the rain ........................................................................\
....................6-52
Hazardous driving conditions ........................................................................\
...6-51
Highway driving ........................................................................\
.......................6-53

I
I-13
Trailer towing ........................................................................\
..............................6-59
If you decide to pull a trailer ........................................................................\
....6-60
Trailer towing equipment ........................................................................\
.........6-63
Driving with a trailer ........................................................................\
................6-64
Maintenance when towing a trailer ..................................................................6-67
V
Vehicle certification label
........................................................................\
............2-14
Vehicle identification number (VIN)
...................................................................2-14
Vehicle weight
........................................................................\
.............................6-68
The Loading Information Label .......................................................................6-69
Volume and weight
........................................................................\
......................2-11
W
Washer fluid
........................................................................\
.................................9-21
Checking the washer fluid level .......................................................................9-21
Windows
........................................................................\
......................................5-57
Power windows ........................................................................\
........................5-58
Windshield defrosting and defogging
................................................................5-110
Auto Defogging System on Models with Automatic Temperature Control ...5-111
Automatic climate control system ..................................................................5-110
Rear window defroster ........................................................................\
...........5-112
Winter driving
........................................................................\
..............................6-54
Snow or icy conditions ........................................................................\
.............6-54
Winter precautions ........................................................................\
...................6-57
Wiper blades
........................................................................\
................................9-24
Blade inspection ........................................................................\
.......................9-24
Blade replacement ........................................................................\
....................9-24
Wipers and washers
........................................................................\
.....................5-92
Front windshield washers ........................................................................\
.........5-94
Rear window wiper and washer .......................................................................5-95
Windshield wipers ........................................................................\
....................5-92