2020 Hyundai Ioniq Plug-in Hybrid coolant level

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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7-18
Maintenance
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The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant level at least once a year, at
the beginning of the winter season
and before traveling to a colder cli-
mate.Checking the Coolant Level
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen
or deteriorated hoses.The coolant level should be filled
between the MAX and the MIN
marks on the side of the coolant
reservoir when the engine is cool.
If the coolant level is low, add enough
distilled (deionized) water to bring
the level to the MAX mark, but do not
overfill. If frequent additions are
required, see an authorized HYUNDAI
dealer for a cooling system inspection.
OAE076005
OAEPH078004
■Engine coolant
■Inverter coolant

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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OAE076006
OAEPH078007
■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

7-23
7
Maintenance
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Checking the Washer Fluid
Level
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. Plain water may be used if
washer fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
Checking the Parking Brake
Check whether the stroke is within
specification when the parking brake
pedal is depressed with 44 lb (20 kg,
196 N) of force. Also, the parking
brake alone should securely hold the
vehicle on a fairly steep grade. If the
stroke is more or less than specified,
have the parking brake adjusted by
an authorized HYUNDAI dealer.
Stroke : 4~5 notch OAE076009
To prevent serious injury or
death, take the following safety
precautions when using washer
fluid:
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 con-
trol resulting in an accident or
damage to paint and body trim.
Do not allow sparks or flames
to contact the washer fluid or
the washer fluid reservoir.
Washer fluid may contain alco-
hol and can be flammable.
Do not drink washer fluid and
avoid contact with skin.
Washer fluid is harmful to
humans and animals.
Keep washer fluid away from
children and animals.
WARNING
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OAE056014

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California perchlorate notice ..........................................7-79
Child Restraint System (CRS) ........................................2-36
Children Always in the Rear ......................................2-36
Installing a Child Restraint System (CRS) ................2-39
Selecting a Child Restraint System (CRS).................2-37
Climate control additional features...............................3-159
Automatic Ventilation .............................................3-159
Sunroof inside air recirculation ................................3-159
Climate control air filter .................................................7-26
Filter inspection ..........................................................7-26
Coasting guide ...............................................................5-25
Consumer information ....................................................8-11
Cruise control ...............................................................5-107
Cruise Control operation ..........................................5-107
Dimensions .......................................................................8-2
Door locks .........................................................................3-9
Auto Door Lock/Unlock Features ..............................3-12
Child-Protector Rear Door Locks ..............................3-12
Operating Door Locks from Inside the Vehicle ........3-10
Operating Door Locks from Outside the Vehicle .......3-9
Driver Attention Warning (DAW) ..................................5-99
Leading Vehicle Departure Alert .............................5-105
Resetting the system ................................................5-102System malfunction ..................................................5-102
System setting and operation .....................................5-99
System standby.........................................................5-102
Driver position memory system ....................................3-14
Easy Access Function .................................................3-15
Recalling Positions from Memory .............................3-15
Storing Positions into Memory .................................3-14
Dual clutch transmission.................................................5-12
Dual Clutch Transmission Operation .........................5-12
Good Driving Practices .............................................5-20
LCD display for transmission temperature and
warning message ......................................................5-14
Parking........................................................................5-19
Shift Lever Position....................................................5-16
Emission control system .................................................7-75
Crankcase Emission Control System .........................7-76
Evaporative Emission Control System Including
Onboard Refueling Vapor Recovery (ORVR) .........7-76
Exhaust Emission Control System .............................7-76
Engine ...............................................................................8-2
Engine compartment .........................................................7-3
Engine coolant/inverter coolant ......................................7-18
Changing Coolant.......................................................7-21
Checking the Coolant Level .......................................7-18
Engine number ................................................................8-10
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