2021 HYUNDAI TUCSON HYBRID washer fluid

Driver assistance system
7-8
Forward Collision-Avoidance Assist
disabled
OTM070093N
When the front windshield where the
front view camera is located or the
sensor is covered with foreign material,
such as snow or rain, it can reduce the
detecting performance and temporarily
limit or disable Forward Collision-
Avoidance Assist.
If this occurs the ‘Forward Safety
system(s)
disabled. Camer
a
obscur
ed’
warning message, and the and
warning lights will illuminate on the
cluster.
Forward Collision-Avoidance Assist will
operate normally when such snow, rain
or foreign material is removed.
If Forward Collision-Avoidance Assist
does not operate normally after
obstruction (snow, rain, or foreign
material) is removed, we recommend
that the vehicle be inspected by an
authorized HYUNDAI dealer.
WARNING
• Even though the warning message or
warning light does not appear on the
cluster, Forward Collision-Avoidance
Assist may not properly operate.
• Forward Collision-Avoidance Assist
may not properly operate in an
area (e.g. open terrain), where any
substance are not detected after
turning ON the engine.
Limitations of Forward Collision-
Avoidance Assist
Forward Collision-Avoidance Assist may
not operate normally, or it may operate
unexpectedly under the following
circumstances:
• The detecting sensor or the
surroundings are contaminated or
damaged
• The temperature around the front
view camera is high or low
• The camera lens is contaminated due
to tinted, filmed or coated windshield,
damaged glass, or sticky foreign
material (sticker, bug, etc.) on the
glass
• Moisture is not removed or frozen on
the windshield
• Washer fluid is continuously sprayed,
or the wiper is on
• Driving in heavy rain or snow, or thick
fog
• The field of view of the front view
camera is obstructed by sun glare
• Street light or light from an oncoming
vehicle is reflected on the wet road
surface, such as a puddle on the road
• An object is placed on the dashboard
• Your vehicle is being towed
• The surrounding is very bright
• The surrounding is very dark, such as
in a tunnel, etc.
• The brightness changes suddenly, for
example when entering or exiting a
tunnel
• The brightness outside is low, and the
headlamps are not on or are not bright

07
7-23
Forward Collision-Avoidance Assist
disabled
OTM070093N
OTM070095N
When the front windshield where the
front view camera is located, front radar
Cover, or sensor is covered with foreign
material, such as snow or rain, it can
reduce the detecting performance and
temporarily limit or disable Forward
Collision-Avoidance Assist.
If this occurs the ‘Forward safety systems
disabled.
Camer
a
obscur
ed’
or the ‘Forw

ard safety system disabled. Radar
blocked’
w

arning
message, and the
and warning lights will illuminate on
the cluster.
Forward Collision-Avoidance Assist will
operate normally when when such snow,
rain or foreign material is removed.
If Forward Collision-Avoidance Assist
does not operate normally after
obstruction (snow, rain, or foreign
material) is removed, have the vehicle
inspected by an authorized HYUNDAI
dealer.
WARNING
• Even though the warning message or
warning light does not appear on the
cluster, Forward Collision-Avoidance
Assist may not properly operate.
• Forward Collision-Avoidance Assist
may not properly operate in an
area (e.g. open terrain), where any
substance are not detected after
turning ON the engine.
Limitations of Forward Collision-
Avoidance Assist
Forward Collision-Avoidance Assist may
not operate normally, or it may operate
unexpectedly under the following
circumstances:
• The detecting sensor or the
surroundings are contaminated or
damaged
• The temperature around the front
view camera is high or low
• The camera lens is contaminated due
to tinted, filmed or coated windshield,
damaged glass, or sticky foreign
material (sticker, bug, etc.) on the
glass
• Moisture is not removed or frozen on
the windshield
• Washer fluid is continuously sprayed,
or the wiper is on
• Driving in heavy rain or snow, or thick
fog
• The field of view of the front view
camera is obstructed by sun glare
• Street light or light from an oncoming
vehicle is reflected on the wet road
surface, such as a puddle on the road
• An object is placed on the dashboard

Driver assistance system
7-88
Limitations of Smart Cruise Control
Smart Cruise Control may not operate
normally, or it may operate unexpectedly
under the following circumstances:
• The detecting sensor or the
surroundings are contaminated or
damaged
• Washer fluid is continuously sprayed,
or the wiper is on
• The camera lens is contaminated due
to tinted, filmed or coated windshield,
damaged glass, or sticky foreign
material (sticker, bug, etc.) on the
glass
• Moisture is not removed or frozen on
the windshield
• The field of view of the front view
camera is obstructed by sun glare
• Street light or light from an oncoming
vehicle is reflected on the wet road
surface, such as a puddle on the road
• The temperature around the front
view camera is high or low
• An object is placed on the dashboard
• The surrounding is very bright
• The surrounding is very dark, such as
in a tunnel, etc.
• The brightness changes suddenly, for
example when entering or exiting a
tunnel
• The brightness outside is low, and the
headlamps are not on or are not bright
• Driving in heavy rain or snow, or thick
fog
• Driving through steam, smoke or
shadow •
Only part of the vehicle is detected
• The vehicle in front has no tail lights,
tail lights are located unusually, etc.
• The brightness outside is low, and the
tail lamps are not on or are not bright
• The rear of the front vehicle is small
or does not look normal (i.e. tilted,
overturned, etc.)
• The
fr

ont
v
ehicle’s
gr
ound
clear
ance
is low or high
• A v

ehicle suddenly cuts in front
• Your vehicle is being towed
• Driving through a tunnel or iron bridge
• Driving near areas containing metal
substances, such as a construction
zone, railroad, etc.
• A material is near that reflects very
well on the front radar, such as a
guardrail, nearby vehicle, etc.
• The bumper around the front radar is
impacted, damaged or the front radar
is out of position
• The temperature around the front
radar is high or low
• Driving in large areas where there are
few vehicles or structures (i.e. desert,
meadow, suburb, etc.)
• The vehicle in front is made of
material that does not reflect on the
front radar
• Driving near a highway (or motorway)
interchange or tollgate
• Driving on a slippery surface due to
snow, water puddle, ice, etc.
• Driving on a curved road
• The vehicle in front is detected late
• The vehicle in front is suddenly
blocked by a obstacle
• The vehicle in front suddenly changes
lane or suddenly reduces speed

9. Maintenance
Engine compartment ........................................................................\
................9-3
Main tenance services
........................................................................\
............... 9-4
Owner’s responsibility ........................................................................\
........................ 9-4
Owner maint enance precautions........................................................................\
....... 9-4
Owner maintenance ........................................................................\
................. 9-5Owner maintenance schedule ........................................................................\
............9-5
Scheduled maintenance services .....................................................................9 -7Normal Maintenance Schedule ........................................................................\
.......... 9-8
Maint enance under severe usage conditions .......................................................... 9-
11
Explanation of scheduled maintenance items ..............................................9-13
E ngine oil
........................................................................\
.................................. 9-

15
Checking the engine oil level ........................................................................\
............9-15
Checking the engine oil and filt er ........................................................................\
..... 9-
16
Engine coolant/inverter coolant .....................................................................9-17Checking the coolant level ........................................................................\
................. 9-17
Changing coolan t ........................................................................\
............................... 9-
19
Hybrid Starter & Generator (HSG) belt ..........................................................9-20Checking the Hybrid Starter & Generator (HSG) belt .............................................9-20
Brake fluid ........................................................................\
............................... 9-20Checking the brake fluid level ........................................................................\
..........9-20
Washer fluid ........................................................................\
............................. 9-21Checking the washer fluid level ........................................................................\
........9-21
Air cleaner ........................................................................\
............................... 9-22Filter replacement ........................................................................\
..............................9-22
Cabin air filter ........................................................................\
..........................9-23Filter inspection ........................................................................\
.................................. 9-23
Filt er replacement ........................................................................\
.............................. 9-
23
Wiper blades ........................................................................\
...........................9-2 4Blade inspection ........................................................................\
.................................9-2 4
Blade replacement ........................................................................\
............................. 9
-24
Battery ........................................................................\
.....................................9-28Battery capacity label ........................................................................\
........................9-29
Ba ttery recharging ........................................................................\
............................. 9-
29
Reset items
........................................................................\
........................................ 9-

30
Maintenance
9

9-3
09
„„Smartstream G1.6 T-GDi HEV
The actual engine compartment in the vehicle may differ from the illustration.
ONX4EH090001
1. ECU
2.
Engine coolan
t reservoir
3.
Engine coolan

t reservoir cap
4.
Inv

erter coolant reservoir
5.
Brak

e fluid reservoir
6.
Air cleaner 7.
Engine oil filler cap
8.
Engine oil dips
tick
9.
Windshield washer fluid r

eservoir
10.
Fuse bo

x
11.
Inv

ert coolant reservoir cap
EnginE compartmEnt

09
9-5
WARNING
Performing maintenance work on a
vehicle can be dangerous. If you lack
sufficient knowledge and experience or
the proper tools and equipment to do
the work, we recommend that having it
done by an authorized HYUNDAI dealer.
ALWAYS follow these precautions for
performing maintenance work:
• Park your vehicle on level ground,
move the shift button into the P
(Park) position, apply the parking
brake, and place the ignition switch
in the LOCK/OFF position.
• Block the tires (front and back) to
prevent the vehicle from moving.
Remove loose clothing or jewelry
that can become entangled in
moving parts.
• If you must run the engine during
maintenance, do so out doors or in
an area with plenty of ventilation.
• Keep flames, sparks, or smoking
materials away from the battery and
fuel-related parts. The following lists are vehicle checks and
inspections that should be performed
by the owner or an authorized HYUNDAI
dealer at the frequencies indicated to
help ensure safe, dependable operation
of your vehicle.
Any adverse conditions should be
brought to the attention of your dealer as
soon as possible.
These Owner Maintenance vehicle
checks are generally not covered by
warranties and you may be charged for
labor, parts and lubricants used.
Owner maintenance schedule
When you stop for fuel:
•
Check the coolant level in the engine
coolant reservoir.
• Check the windshield washer fluid
level.
• Check for low or under-inflated tires.
WARNING
Be careful when checking your engine
coolant/inverter coolant level when the
engine is hot. This may result in coolant
being blown out of the opening and
cause serious burns and other injuries.
ownEr maintEnancE

Maintenance
9-6
While operating your vehicle:
• Note any changes in the sound of the
exhaust or any smell of exhaust fumes
in the vehicle.
• Check for vibrations in the steering
wheel. Notice if there is any increased
steering effort or looseness in the
steering wheel, or change in its
straight-ahead position.
• Notice if your vehicle constantly turns
slightly or “pulls” to one side when
traveling on smooth, level road.
• When stopping, listen and check for
unusual sounds, pulling to one side,
increased brake pedal travel or “hard-
to-push” brake pedal.
• If any slipping or changes in the
operation of your transmission occurs,
check the transmission fluid level.
• Check the automatic transmission P
(Park) function.
• Check the parking brake.
• Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal).
At least monthly:
• Check coolant level in the engine
coolant reservoir.
• Check the operation of all exterior
lights, including the stoplights, turn
signals and hazard warning flashers.
• Check the inflation pressures of all
tires including the spare for tires that
are worn, show uneven wear, or are
damaged.
• Check for loose wheel lug nuts.
At least twice a year:
• Check radiator, heater and air
conditioning hoses for leaks or
damage.
• Check windshield washer spray and
wiper operation. Clean wiper blades
with a clean cloth dampened with
washer fluid.
• Check headlamp alignment.
• Check muffler, exhaust pipes, shields
and clamps.
• Check the seat belts for wear and
function.
At least once a year:
• Clean body and door drain holes.
• Lubricate door hinges and hood
hinges.
• Lubricate door and hood locks and
latches.
• Lubricate door rubber weather strips.
• Check the air conditioning system.
• Inspect and lubricate automatic
transmission linkage and controls.
• Clean the battery and terminals.
• Check the brake fluid level.

09
9-19
Recommended coolant
• When adding coolant, use only
deionized water, distilled water or soft
water for your vehicle and never mix
hard water in the coolant filled at the
factory.
• An incorrect coolant mixture can
result in severe malfunction or
engine/hybrid system damage.
• The engine in your vehicle has
aluminum engine parts and must be
protected by an phosphate-based
ethylene glycol coolant to prevent
corrosion and freezing.
• Do not use alcohol or methanol
coolant or mix them with the specified
coolant.
• Do not use a solution that contains
more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution.
For mixing percentage, refer to the
following table:
Ambient
Temperature Mixture Percentage
(volume)
Antifreeze Water
5°F (-15°C) 35 65
-13°F (-25°C) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40
Information
If in doubt about the mix ratio, a 50%
water and 50% antifreeze mix is the
easiest to mix together as it will be the
same quantity of each. It is suitable to
use for most temperature ranges of -31°F
(-35°C) and higher.
Changing coolant
We recommend that coolant be changed
by an authorized HYUNDAI dealer
according to the Maintenance Schedule
at the beginning of this chapter.
WARNING
Do not use engine coolant or antifreeze
in the washer fluid reservoir.
Engine coolant can severely obscure
visibility when sprayed on the
windshield and may cause loss of
vehicle control resulting in an accident.
Engine coolant may also cause damage
to paint and body trim.
NOTICE
To prevent damage to engine parts, put
a thick towel around the engine coolant
cap and/or inverter coolant cap before
refilling the coolant to prevent the
coolant from overflowing into engine
parts, such as the alternator.