2023 HYUNDAI NEXO oil

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Convenient features of your vehicle
System Maintenance
Cabin air filter
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core The cabin air filter is installed behind
the glove box. It filters the dust or other
pollutants that enter the vehiclethrough the heating and air condition-ing system.
Have the The cabin air filter replaced
by an authorized HYUNDAI dealeraccording to the maintenance sched-
ule.If the vehicle is being driven in
severe conditions such as dusty or
rough roads and/or if transporting
pets or occupants smoke inside the
vehicle, then more frequent cabin airfilter inspections and changes arerequired.
If the air flow rate suddenly decreas-
es, the system should be checked at
an authorized HYUNDAI dealer.
Checking the amount of air con-
ditioner refrigerant and com-
pressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the airconditioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorized
HYUNDAI dealer.
It is important that the correct type and amount of oil and refrig-
erant is used. Otherwise, damageto the compressor and abnormal
system operation may occur. To
prevent damage, the air condition-
ing system in your vehicle should
only be serviced by trained and
certified technicians.
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Convenient features of your vehicle
3
Air Conditioning refrigerant label
You can find out which air condition-
ing refrigerant is applied to your vehi-cle on the label located inside of thehood.Each symbols and specification on
the air conditioning refrigerant label
is represented as below:
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of compressor lubri-
cant
4. Caution
5. Flammable refrigerant
6. To require registered technician to service air conditioning system
7. Service manual
Vehicles equipped with R-1234yf
Since the refrigerant is
mildly flammable andoperated at high pres-
sure, the air condition-
ing system should only
be serviced by trained
and certified techni-
cians. It is important
that the correct type and amount
of oil and refrigerant are used.
All refrigerants should be
reclaimed with proper equipment.
Venting refrigerants directly to the atmosphere is harmful to individu-
als and environment. Failure toheed these warnings can lead toserious injuries.
WARNING
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■ Example

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Convenient features of your vehicle
3
Luggage Net Holder (if equipped)
To keep items from shifting in the lug-
gage compartment, you can use the4 holders located in the luggageboard to attach the luggage net.
Make sure the luggage net is securely attached to the holders in the luggageboard.
The following must be observedwhen installing ANY floor mat
to the vehicle.
Ensure that the floor mats are
securely attached to the vehi-
cle's floor mat anchor(s)
before driving the vehicle.
Do not use ANY floor mat that
cannot be firmly attached to
the vehicle's floor mat anchors.
Do not stack floor mats on top
of one another (e.g. all-weath-er rubber mat on top of a car-
peted floor mat). Only a singlefloor mat should be installed
in each position.
IMPORTANT - Your vehicle was
manufactured with driver’s side
floor mat anchors that are
designed to securely hold the
floor mat in place. To avoid any
interference with pedal opera-
tion, HYUNDAI recommends
that the HYUNDAI floor mat
designed for use in your vehiclebe installed.
WARNING
Avoid eye injury. DO NOT over-
stretch the luggage net. ALWAYS
keep your face and body out of
the luggage net's recoil path. DO
NOT use the luggage net when
the strap has visible signs of
wear or damage.
Use the luggage net to keep only
light items from shifting in the
luggage compartment.
WARNING
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Infotainment System
Information
 If you install an aftermarket HID headlamp, your vehicle's audio and
electronic devices may malfunction.
 Prevent chemicals such as perfume, cosmetic oil, sun cream, hand clean-
er, and air freshener from contacting
the interior parts because they may
cause damage or discoloration.USB and iPod ®
port
You can use an USB port to plug in
an USB and an iPod ®
port.
Information
When using a portable audio device
connected to the power outlet, noise
may occur during playback. If this
happens, use the portable audio
device's power source. ❈ iPod ®
is a trademark of Apple Inc.
Antenna
Shark fin antenna
The shark fin antenna will receive the
AM, FM broadcast signals, SXM,
LTE and transmit data.
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Driving your vehicle
5
Limitations of the System
The LKA system may operate pre-
maturely even if the vehicle does not
depart from the intended lane, OR,
the LKA system may not warn you if
the vehicle leaves the intended lane
under the following circumstances:
When the lane and road condi- tions are poor
It is difficult to distinguish the lanemarker from the road because the
lane marker is covered with dust orsand.
It is difficult to distinguish the color of the lane marker from the road.
There are markings on the road surface that look like a lane marker
that is inadvertently being detected
by the camera.
damaged.
The lane marker is merged or divided. (e.g. tollgate)
The lane number increases or decreases or the lane marker are
crossing complicatedly.
There are more than two lane markers on the road in front of you. The lane marker is very thick or
thin.

The lane marker ahead is not visible due to rain, snow, water on the road, damaged or stained road sur-
face, or other factors.
The shadow is on the lane marker by a median strip, trees, guardrail,
noise barriers, etc.
The lane markers are complicated or a structure substitutes for the
lines such as a construction area.
There are crosswalk signs or other symbols on the road.
The lane marker in a tunnel is stained with oil, etc.
The lane suddenly disappears such as at the intersection.
When external condition is inter-vened
The brightness outside changes suddenly such as when entering or
exiting a tunnel, or when passing
under a bridge. The brightness outside is too low
such as when the headlamps are
not on at night or the vehicle isgoing through a tunnel.
There is a boundary structure in the roadway such as a concrete
barrier, guardrail and reflector post
that is inadvertently being detected
by the camera.
When light coming from a street light or an oncoming vehicle is
reflected on a wet road surfacesuch as a puddle in the road.
The field of view in front is obstructed by sun glare.
There is not enough distance between you and the vehicle in
front to be able to detect the lane
marker or the vehicle ahead is driv-
ing on the lane marker.
Driving on a steep grade, over a hill, or when driving on a curvedroad.
The adverse road conditions cause excessive vehicle vibrations while
driving.
The surrounding of the inside rear view mirror temperature is highdue to direct sunlight, etc.

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Driving your vehicle
5
Winter Precautions
Use high quality ethylene glycolcoolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type ofcoolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolantin accordance with the maintenance
schedule in chapter 7. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Change to "winter weight" oil ifnecessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 8 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
HYUNDAI dealer.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 7. The level of charge in
your battery can be checked by an
authorized HYUNDAI dealer or a
service station.
Use approved window washeranti-freeze in system
To keep the water in the window
washer system from freezing, add an
approved window washer anti-freeze
solution in accordance with instruc-
tions on the container. Window wash-
er anti-freeze is available from an
authorized HYUNDAI dealer and
most auto parts outlets. Do not use
coolant or other types of anti-freeze
as these may damage the paint fin-ish.
Do not let your parking brake
freeze
Under some conditions your parking
brake can freeze in the engaged
position. This is most likely to happen
when there is an accumulation of
snow or ice around or near the rear
brakes or if the brakes are wet. If
there is a risk the parking brake may
freeze, apply it only temporarily while
you shift to P (Park) and block therear wheels so the car cannot roll.
Then release the parking brake.

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7
Maintenance
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Checking the Brake Fluid
Level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap
and adding brake fluid, clean the
area around the reservoir cap thor-
oughly to prevent brake fluid contam-ination. If the level is low, add the specified
brake fluid to the MAX level. The level
will fall with accumulated mileage.
This is a normal condition associated
with the wear of the brake linings. If
the fluid level is excessively low, have
the brake system checked by an
authorized HYUNDAI dealer.
Do not allow brake fluid to con-
tact the vehicle’s body paint, as
paint damage will result.
Brake fluid, which has been exposed to open air for an
extended time should NEVER beused as its quality cannot be
guaranteed. It should be dis-
posed of properly.
Do not use the wrong kind of brake fluid. A few drops of min-
eral based oil, such as engine
oil, in your brake system can
damage brake system parts.
Information
Use only the specified brake fluid
(refer to "Recommended Lubricants
and Capacities" in chapter 8).
i
NOTICE
If the brake system requires fre-
quent additions of fluid thiscould indicate a leak in the
brake system. Have the vehicle
inspected by an authorized
HYUNDAI dealer.
WARNING
Do not allow brake fluid to come
in contact with your eyes. Ifbrake fluid comes in contact
with your eyes, flush your eyes
with clean water for at least 15
minutes and get immediatemedical attention.
WARNING
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7
Maintenance
Bead
The tire bead contains steel wires
wrapped by steel cords that hold the
tire onto the rim.
Bias Ply Tire
A pneumatic tire in which the plies
are laid at alternate angles less than
90 degrees to the centerline of thetread.
Cold Tire Pressure
The amount of air pressure in a tire,
measured in kilopascals (kPa) or
pounds per square inch (psi) before
a tire has built up heat from driving.
Curb Weight
This means the weight of a motor
vehicle with standard and optional
equipment including the maximum
capacity of fuel, oil and coolant, but
without passengers and cargo.
DOT Markings
The DOT code includes the TireIdentification Number (TIN), an
alphanumeric designator which can
also identify the tire manufacturer,
production plant, brand and date ofproduction.
GVWR
Gross Vehicle Weight Rating
GAWR FRT
Gross Axle Weight Rating for the
Front Axle.
GAWR RR
Gross Axle Weight Rating for the
Rear axle.
Intended Outboard Sidewall
The side of an asymmetrical tire, that
must always face outward when
mounted on a vehicle.
Kilopascal (kPa)
The metric unit for air pressure.
Light truck(LT) tire
A tire designated by its manufacturer
as primarily intended for use on light-
weight trucks or multipurpose pas-
senger vehicles.
Load ratings
The maximum load that a tire is rated
to carry for a given inflation pressure.
Load Index
An assigned number ranging from 1to 279 that corresponds to the load
carrying capacity of a tire.