2020 Hyundai Ioniq Plug-in Hybrid lock

7-6
Maintenance
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The following lists are vehicle checks
and inspections that should be per-
formed by the owner or an author-
ized HYUNDAI dealer at the frequen-
cies indicated to help ensure safe,
dependable operation of your vehi-
cle.
Any adverse conditions should be
brought to the attention of your deal-
er 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. 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, have it done by an author-
ized HYUNDAI dealer.
ALWAYS follow these precau-
tions for performing mainte-
nance work:
•Park your vehicle on level
ground, move the shift lever
into the P (Park), apply the
parking brake, and place the
Engine Start/Stop button in
the OFF position.
(Continued)
WARNING (Continued)
Block the tires (front and
back) to prevent the vehicle
from moving.
Remove loose clothing or jew-
elry that can become entan-
gled 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 smok-
ing materials away from the
battery and fuel-related parts.

7-8
Maintenance
At least monthly:
Check coolant level in the engine
coolant reservoir.
Check the operation of all exterior
lights, including the brake lights,
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:
(i.e., every Spring and Fall)
Check radiator, heater and air con-
ditioning hoses for leaks or dam-
age.
Check windshield washer spray
and wiper operation. Clean wiper
blades with a clean cloth damp-
ened 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.
Lubricate door checker.
Check the air conditioning system.
Inspect and lubricate transmission
linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.Follow Normal Maintenance Schedule
if the vehicle is usually operated where
none of the following conditions apply.
If any of the following conditions apply,
you must follow the Maintenance
Under Severe Usage Conditions.
Repeated short distance driving.
Driving in dusty conditions or
sandy areas.
Extensive use of brakes.
Driving in areas where salt or other
corrosive materials are used.
Driving on rough or muddy roads.
Driving in mountainous areas.
Extended periods of idling or low
speed operation.
Driving for a prolonged period in
cold temperatures and/or extreme-
ly humid climates.
More than 50% driving in heavy
city traffic during hot weather
above 90°F (32°C).
For additional information or assis-
tance see your authorized HYUNDAI
dealer.
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7-16
Maintenance
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Checking the Engine Oil Level
1. Follow all of the oil manufacturer’s
precautions.
2. Be sure the vehicle is on the level
ground in P (Park) with the park-
ing brake set. If possible, block the
wheels.
3. Turn the engine on and allow the
engine to reach normal operating
temperature.
4. Turn the engine off and wait about
five minutes for the oil to return to
the oil pan.
5. Pull the dipstick out, wipe it clean,
and re-insert it fully.6. Pull the dipstick out again and
check the level. The level should
be between F (Full) and L (Low).
7. If it is near or at L, add enough oil
to bring the level to F.To prevent damage to your
engine:
Do not overfill with engine oil.
Add oil in small quantities and
recheck level to ensure engine
is not overfilled.
Do not spill engine oil when
adding or changing engine oil.
Use a funnel to help prevent oil
from being spilled on engine
components. Wipe off spilled oil
immediately.
NOTICE
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7-19
7
Maintenance
Information
The engine coolant and/or inverter
coolant level is influenced by the
hybrid system temperature. Before
checking or refilling the engine
coolant and/or inverter coolant, turn
the hybrid vehicle off.
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■Engine coolant cap
■Inverter coolant cap
Never remove the
engine coolant cap
and/or inverter coolant
cap or the drain plug
while the engine and
radiator are hot. Hot coolant and
steam may blow out under pres-
sure, causing serious injury.
Turn the hybrid system off and
wait until the engine cools
down. Use extreme care when
removing the engine coolant
cap and/or inverter coolant cap.
Wrap a thick towel around it,
and turn it counterclockwise
slowly to the first stop. Step
back while the pressure is
released from the cooling sys-
tem. When you are sure all the
pressure has been released,
press down on the cap, using a
thick towel, and continue turn-
ing counterclockwise to remove
it.
WARNING
The electric motor for
the cooling fan may
continue to operate
or start up when the
engine is not running
and can cause serious injury.
Keep hands, clothing and tools
away from the rotating fan
blades of the cooling fan.
Always turn off the engine
unless the vehicle has to be
inspected with the engine on.
Be cautious as the cooling fan
may operate if the negative (-)
battery terminal is not discon-
nected.
WARNING

7-20
Maintenance
Recommended coolant
When adding coolant, use only
distilled (deionized) water for your
vehicle and never mix hard water in
the coolant filled at the factory.
An improper coolant mixture can
result in severe malfunction or
engine/hybrid system damage.
The engine in your vehicle has alu-
minum 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 spec-
ified 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. Make sure the coolant cap is
properly closed after refilling
coolant. Otherwise the engine
could be overheated while driv-
ing.
1. Check if the coolant cap label
is straight In front.
(Continued)WARNING
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■Engine room front view
(Continued)
2. Make sure that the tiny pro-
trusions inside the coolant
cap is securely interlocked.
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■Engine compartment rear view

7-24
Maintenance
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Filter Replacement
Do not attempt to wash or to rinse it,
as water will damage the filter.
If soiled, the air cleaner filter must be
replaced.
Replace the filter according to the
Maintenance Schedule.1. Loosen the air cleaner cover
attaching clips and open the
cover.2. Wipe the inside of the air cleaner.
3. Replace the air cleaner filter.
4. Lock the cover with the cover
attaching clips.
5. Check that the cover is firmly
installed.
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7-27
7
Maintenance
3. Press and hold the lock (1) on
both sides of the cover.
4. Pull out (2) the cover.5. Replace the climate control air fil-
ter.
6. Reassemble in the reverse order
of disassembly.
Install a new climate control air fil-
ter in the correct direction with the
arrow symbol (
↓ ↓) facing down-
wards to prevent noise and
reduced effectiveness.
NOTICE
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7-29
7
Maintenance
Type A
1. Raise the wiper arm and slightly
rotate the wiper blade assembly to
expose the plastic locking clip.
Do not allow the wiper arm to fall
against the windshield, since it
may chip or crack the windshield.2. Press the clip (1) and slide the
blade assembly downward (2).
3. Lift it off the arm.
4. Install the blade assembly in the
reverse order of removal.
5. Return the wiper arm on the wind-
shield.
Type B
1. Raise the wiper arm.
NOTICE
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