2023 HYUNDAI TUCSON fluid change

05
5-121
Auto dehumidify (if equipped)
To increase cabin air quality and reduce
windshield misting, recirculation mode
switches off automatically after about 5
to 30 minutes, depending on the outside
temperature, and the air intake will
change to fresh mode.
Turning Auto Dehumidify ON or OFF
Climate control system
To turn the Auto Dehumidify feature on
or off, select Face level (
) mode and
while holding down the A/C icon, press
the air intake control (
) button at
least five times within three seconds.
When Auto Dehumidify is turned on,
the air intake control button indicator
will blink 6 times. When turned off, the
indicator will blink 3 times.
Infotainment system
Auto Dehumidify can be turned on and
off by selecting ‘Setup → Vehicle Settings → Climate → Automatic Ventilation → Auto Dehumidify’ from the infotainment
system screen.
For detailed information, refer to the
separately supplied infotainment
system manual.
Recirculating air when washer
fluid is used
Recirculation mode automatically
activates to reduce any objectionable
scent of the washer fluid from entering
the cabin when the windshield washer is
used.
When it is shifted to the recirculation
mode, the unpleasant scent may flow
into the vehicle.
However, in cold weather to prevent
the windshield from fogging up, the
recirculation mode may not be selected.
Turning Activate upon Washer Fluid
Use ON or OFF
Climate control system
To turn the Activate upon Washer Fluid
Use feature on or off, select Floor level
(
) mode, and then press the air
intake control () button four times
within two seconds while pressing the
A/C icon.
When Activate upon Washer Fluid Use
ON is turned on, the air intake control
button indicator will blink 6 times. When
turned off, the indicator will blink 3
times.
Infotainment system
Activate upon Washer Fluid Use can be
turned on and off by selecting ‘Setup → Vehicle Settings → Climate → Recirculate Air → Activate upon Washer Fluid Use (or Interlocking washer fluid)’ from the
infotainment system screen.
For detailed information, refer to the
separately supplied infotainment
system manual.

06
6-3
WARNING
Carbon monoxide (CO) gas is toxic. Breathing CO can cause unconsciousness and
death.
Engine exhaust contains carbon monoxide which cannot be seen or smelled.
Do not inhale engine exhaust.
If at any time you smell engine exhaust inside the vehicle, open the windows
immediately. Exposure to CO can cause unconsciousness and death by asphyxiation.
Be sure the exhaust system does not leak.
The exhaust system should be checked whenever the vehicle is raised to change the
oil or for any other purpose. If you hear a change in the sound of the exhaust or if you
drive over something that strikes the underneath side of the vehicle, we recommend
that the exhaust system be checked as soon as possible by an authorized HYUNDAI
dealer.
Do not run the engine in an enclosed area.
Letting the engine idle in your garage, even with the garage door open, is a hazardous
practice. Run the engine only long enough to start the engine and to move the vehicle
out of the garage.
Avoid idling the engine for prolonged periods with people inside the vehicle.
If it is necessary to idle the engine for a prolonged period with people inside the
vehicle, be sure to do so only in an open area with the air intake set at “Fresh” and fan
control set to high so fresh air is drawn into the interior.
Keep the air intakes clear.
To assure proper operation of the ventilation system, keep the ventilation air intakes
located in front of the windshield clear of snow, ice, leaves, or other obstructions.
If you must drive with the liftgate open:
Close all windows.
Open instrument panel air vents.
Set the air intake control at “Fresh”, the air flow control at “Floor” or “Face”, and the fan
control set to high.
WARNING
CALIFORNIA PROPOSITION 65 WARNING
Engine exhaust and a wide variety of automobile components including
components found in the interior furnishings in a vehicle, contain or emit harmful
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 components contain or emit chemicals known to the State of California
to cause cancer and birth defects or other reproductive harm.

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. Camera obscured’ 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, 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
• 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
7-89
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 front vehicle’s ground clearance is low or high
• A vehicle 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

Maintenance
9-6
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 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.
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.

Maintenance
9-10
Normal maintenance schedule
MAINTENANCE

INTERVALS
MAINTENANCE
ITEM Number of months or driving distance, whichever comes first
Months 1224 3648 60 7284 96108 120 132144 156
Miles×1,000 816 24 3240 48 5664 7280 8896104
Km×1,000 1326 39 5265 78 91104 117130 143156169
Engine coolant At first, replace at 120,000 miles (200,000 km) or 120 months.
After that, replace every 24,000 miles (40,000 km) or 24 months
Battery condition IIIIIIIIIIIII
Brake lines, hoses and connections IIIIIIIIIIIII
Brake pedal IIIIII
Parking brake (if equipped) IIIIII
Brake fluid Inspect every 8,000 miles (13,000 km) or 12 months,
Replace every 48,000 miles (78,000 km) or 48 monthsI : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.

09
9-11
Normal maintenance schedule
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM Number of months or driving distance, whichever comes first
Months 1224 3648 60 7284 96108 120 132144 156
Miles×1,000 816 24 3240 48 5664 7280 8896104
Km×1,000 1326 39 5265 78 91104 117130 143156169
Engine coolant At first, replace at 120,000 miles (200,000 km) or 120 months.
After that, replace every 24,000 miles (40,000 km) or 24 months
Battery condition IIIIIIIIIIIII
Brake lines, hoses and connections IIIIIIIIIIIII
Brake pedal IIIIII
Parking brake (if equipped) IIIIII
Brake fluid Inspect every 8,000 miles (13,000 km) or 12 months,
Replace every 48,000 miles (78,000 km) or 48 monthsI : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.Normal maintenance schedule
MAINTENANCE

INTERVALS
MAINTENANCE
ITEM Number of months or driving distance, whichever comes first
Months 1224 3648 60 7284 96108 120 132144 156
Miles×1,000 816 24 3240 48 5664 7280 8896104
Km×1,000 1326 39 5265 78 91104 117130 143156169
Disc brakes and pads IIIIIIIIIIIII
Steering gear rack, linkage and boots III
Tire (pressure & tread wear) IIIIIIIIIIIII
Suspension mounting bolts IIIIIIIIIIIII
Air conditioner refrigerant IIIIIIIIIIIII
Air conditioner compressor IIIIIIIIIIIII
Cabin air filter Replace every 16,000 miles (25,000 km) or 12 months
Automatic transmission fluid No check, No service required
Exhaust pipe and muffler IIIIIIII
IIIII
Rear differential oil *
6
I II
Transfer case oil (AWD) No check, No service required
Drive shaft IIIIIIIIIIIII
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.*5 : Rear differential oil should be changed anytime, front/rear differential have been submerged in water.

09
9-15
Air cleaner filter
We recommend that the air cleaner filter
be replaced by an authorized HYUNDAI
dealer.
Spark plugs
Make sure to install new spark plugs of
the correct heat range.
When installing new spark plugs, be sure
that the ignition coils are clean and free
of any oil or debris. Clean and wipe off
the bottom portion of the ignition coil in
order to prevent any contamination with
the spark plug during installation.
WARNING
Do not remove spark plugs from the
vehicle when the engine is hot. You
may damage the engine and may also
risk burn injury.
Cooling system
Check cooling system components, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
Engine coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
Engine coolant/water-cooled
intercooler coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
Automatic transmission fluid
The automatic transmission fluid level
does not need to be checked under
normal usage conditions.
We recommend that the automatic
transmission fluid be changed by an
authorized HYUNDAI dealer according to
the maintenance schedule.
Information
Automatic transmission fluid color is red
when new.
As the vehicle is driven, the automatic
transmission fluid will begin to look
darker.
This is a normal condition. It does not
need to be replaced based on the color
change.
NOTICE
The use of a non-specified fluid could
result in transmission malfunction and
failure.
Use only specified automatic
transmission fluid. (Refer to
“Recommended Lubricants and
Capacities” section in chapter 2.)