Hyundai Ioniq Plug-in Hybrid (2018 year). Manual

Recommended coolant

For mixing percentage, refer to the

Changing Coolant

following table:

•

When adding coolant, use only

Have coolant changed by an author-

distilled (deionized) water for your

ized HYUNDAI dealer according to

Mixture Percentage

vehicle and never mix hard water in

Ambient

the Maintenance Schedule at the

(volume)

the coolant filled at the factory.

Temperature

beginning of this chapter.

Antifreeze

Water

•

An improper coolant mixture can

5°F (-15°C)

result in severe malfunction or

WARNING

-13°F (-25°C)

engine/ hybrid system damage.

-31°F (-35°C)

•

The engine in your vehicle has alu-

Do not use engine coolant or

-49°F (-45°C)

minum engine parts and must be

antifreeze in the washer fluid

protected by an phosphate-based

reservoir.

ethylene glycol coolant to prevent

Engine coolant can severely

Information

corrosion and freezing.

obscure visibility when sprayed

•

Do not use alcohol or methanol

If in doubt about the mix ratio, a 50%

on the windshield and may

coolant or mix them with the spec-

water and 50% antifreeze mix is the

cause loss of vehicle control

ified coolant.

easiest to mix together as it will be the

resulting in an accident.

same quantity of each. It is suitable to

•

Do not use a solution that contains

Engine coolant may also cause

use for most temperature ranges of

more than 60% antifreeze or less

damage to paint and body trim.

-31°F (-35 °C) and higher.

than 35% antifreeze, which would

reduce the effectiveness of the

NOTICE

solution.

To prevent damage to engine

parts, put a thick towel around the

radiator cap before refilling the

coolant to prevent the coolant

from overflowing into engine

parts, such as the alternator.

7-21

Maintenance

HYBRID STARTER &

BRAKE FLUID

GENERATOR (HSG) BELT

Checking the Brake Fluid Level

If the level is low, add the specified

brake fluid to the MAX level. The level

Checking the Hybrid Starter &

will fall with accumulated mileage.

Generator (HSG) Belt

This is a normal condition associated

with the wear of the brake linings. If

Have the hybrid starter & generator

(HSG) belt inspected or replaced

the fluid level is excessively low, have

the brake system checked by an

according to the Maintenance

Schedule in this chapter by an

authorized HYUNDAI dealer.

WARNING

CAUTION

If the brake system requires fre-

quent additions of fluid this

When the HSG belt is worn out

OAE076008

could indicate a leak in the

or damaged, replace the belt.

Check the fluid level in the reservoir

brake system. Have the vehicle

Otherwise, it may cause engine

inspected by an authorized

periodically. The fluid level should be

overheating or battery dis-

between MAX and MIN marks on the

HYUNDAI dealer.

charge.

side of the reservoir.

Before removing the reservoir cap

WARNING

and adding brake fluid, clean the

area around the reservoir cap thor-

Do not allow brake fluid to come

• Turn the vehicle off while you

oughly to prevent brake fluid contam-

in contact with your eyes. If

inspect the engine or hybrid

ination.

brake fluid comes in contact

starter & generator(HSG) belt.

with your eyes, flush your eyes

Otherwise it may result in

with clean water for at least 15

serious injury.

minutes and get immediate

• Keep hands, clothing etc.

medical attention.

away from the hybrid starter &

generator (HSG) belt.

7-22

WASHER FLUID

NOTICE

Checking the Washer Fluid

WARNING

Level

• Do not allow brake fluid to con-

tact the vehicle’s body paint, as

To prevent serious injury or

paint damage will result.

death, take the following safety

precautions when using washer

• Brake fluid, which has been

fluid:

exposed to open air for an

extended time should NEVER be

•

Do not use engine coolant or

used as its quality cannot be

antifreeze in the washer fluid

guaranteed. It should be dis-

reservoir.

posed of properly.

Engine coolant can severely

• Do not use the wrong kind of

obscure visibility

when

brake fluid. A few drops of miner-

sprayed on the windshield and

al based oil, such as engine oil, in

may cause loss of vehicle con-

your brake system can damage

OAE076009

trol resulting in an accident or

brake system parts.

Check the fluid level in the washer

damage to paint and body trim.

fluid reservoir and add fluid if neces-

•

Do not allow sparks or flames

sary. Plain water may be used if

to contact the washer fluid or

Information

washer fluid is not available.

the washer fluid reservoir.

Use only the specified brake fluid

However, use washer solvent with

Washer fluid may contain alco-

(refer to "Recommended Lubricants

antifreeze characteristics in cold cli-

hol and can be flammable.

and Capacities" in chapter 8).

mates to prevent freezing.

•

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.

7-23

Maintenance

PARKING BRAKE

AIR CLEANER

Checking the Parking Brake

Filter Replacement

OAEPH076011

1. Loosen the air cleaner cover

OAE056014

OAEPH076010

attaching clips and open the

Check whether the stroke is within

The air cleaner filter can be cleaned

cover.

specification when the parking brake

for inspection using compressed air.

pedal is depressed with 44 lb (20 kg,

Do not attempt to wash or to rinse it,

196 N) of force. Also, the parking

as water will damage the filter.

brake alone should securely hold the

If soiled, the air cleaner filter must be

vehicle on a fairly steep grade. If the

replaced.

stroke is more or less than specified,

have the parking brake adjusted by

an authorized HYUNDAI dealer.

Stroke : 4~5 notch

7-24

Information

If the vehicle is operated in extremely

dusty or sandy areas, replace the ele-

ment more often than the usual rec-

ommended intervals

(refer to

"Maintenance Under Severe Usage

Conditions" in this chapter).

NOTICE

• Do not drive with the air cleaner

OAE076012

filter removed. This will result in

2. Wipe the inside of the air cleaner.

excessive engine wear.

3. Replace the air cleaner filter.

• When removing the air cleaner

4. Lock the cover with the cover

filter, be careful that dust or dirt

attaching clips.

does not enter the air intake, or

damage may result.

5. Check that the cover is firmly

installed.

• Use HYUNDAI genuine parts.

Use of non-genuine parts could

damage the air flow sensor.

7-25

Maintenance

CLIMATE CONTROL AIR FILTER

Filter Inspection

The climate control air filter should

be replaced according to the

Maintenance Schedule. If the vehicle

is operated in severely air-polluted

cities or on dusty rough roads for a

long period, it should be inspected

more frequently and replaced earlier.

When you replace the climate control

air filter, replace it performing the fol-

lowing procedure, and be careful to

avoid damaging other components.

OAE076014

OAE076013

1. With the glove box open, remove

2. Remove the support rod (1).

the stoppers on both sides.

7-26

OAE076015

OHG075041

3. Press and hold the lock (1) on

5. Replace the climate control air fil-

both sides of the cover.

ter.

4. Pull out (2) the cover.

6. Reassemble in the reverse order

of disassembly.

NOTICE

Install a new climate control air fil-

ter in the correct direction with the

arrow symbol (↓) facing down-

wards, otherwise, it may be noisy

and the effectiveness of the filter

may be reduced.

7-27

Maintenance

WIPER BLADES

Blade Inspection

NOTICE

Blade Replacement

Contamination of either the wind-

When the wipers no longer clean

To prevent damage to the wiper

shield or the wiper blades with for-

adequately, the blades may be worn

blades, arms or other compo-

eign matter can reduce the effective-

or cracked, and require replacement.

nents, do not:

ness of the windshield wiper func-

• Use gasoline, kerosene, paint

tionality. Common sources of con-

thinner, or other solvents on or

NOTICE

tamination are insects, tree sap, and

near them.

hot wax treatments used by some

To prevent damage to the wiper

commercial car washes. If the blades

• Attempt to move the wipers

arms or other components, do not

are not wiping properly, clean both

manually.

attempt to move the wipers manu-

the window and the blades with a

• Use non-specified wiper blades.

ally.

clean cloth dampened with washer

fluid.

Information

NOTICE

Commercial hot waxes applied by

The use of a non-specified wiper

automatic car washes have been

blade could result in wiper mal-

known to make the windshield diffi-

function and failure.

cult to clean.

7-28

Type A

Type B

OLMB073021

OLMB073020

OLF074017

1. Raise the wiper arm and slightly

1. Raise the wiper arm.

rotate the wiper blade assembly to

expose the plastic locking clip.

NOTICE

Do not allow the wiper arm to fall

OLMB073022

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.

7-29

BATTERY (12 VOLT, PLUG-IN HYBRID VEHICLE)

WARNING

(Continued)

Batteries contain sulfu-

•

NEVER attempt to recharge

To prevent SERIOUS INJURY or

ric acid which is highly

the battery when the vehicle’s

DEATH to you or bystanders,

corrosive. Do not allow

battery cables are connected

always follow these precautions

acid to contact your

to the battery.

when working near or handling

eyes, skin or clothing.

•

The electrical ignition system

the battery:

If acid gets into your eyes, flush

works with high voltage.

Always read and follow

your eyes with clean water for at

NEVER touch these compo-

instructions carefully

least 15 minutes and get imme-

nents with the engine running

when handling a battery.

diate medical attention. If acid

or when the Engine Start/Stop

Wear eye protection

gets on your skin, thoroughly

button is in the ON position.

designed to protect the

wash the area. If you feel pain or

eyes from acid splashes.

a burning sensation, get med-

ical attention immediately.

Keep all flames, sparks,

or smoking materials

• When lifting a plastic-cased

away from the battery.

battery, excessive pressure

on the case may cause battery

Hydrogen is always pres-

acid to leak. Lift with a battery

ent in battery cells, is

carrier or with your hands on

highly combustible, and

opposite corners.

may explode if ignited.

• Do not attempt to jump start

Keep batteries out of

your vehicle if your battery is

reach of children.

frozen.

(Continued)

7-31

Maintenance

For Best Battery Service

Battery Recharging

WARNING

CALIFORNIA PROPOSITION 65

WARNING

Always follow these instruc-

Battery posts, terminals, and

tions when recharging your

related accessories contain

vehicle's battery to avoid the

lead and lead compounds,

risk of SERIOUS INJURY or

chemicals known to the State of

DEATH from explosions or acid

California to cause cancer, birth

burns:

defects and reproductive harm.

•

Before performing mainte-

Batteries also contain other

nance or recharging the bat-

chemicals known to the State of

tery, turn off all accessories

OAE076016

California to cause cancer.

and place the Engine Start/

Wash hands after handling.

•

Keep the battery securely mount-

Stop button in the OFF posi-

ed.

tion.

NOTICE

•

Keep the battery top clean and dry.

•

Keep all flames, sparks, or

•

Keep the terminals and connec-

smoking materials away from

• When you do not use the vehicle

tions clean, tight, and coated with

the battery.

for a long time in a low tempera-

petroleum jelly or terminal grease.

•

Always work outdoors or in an

ture area, disconnect the battery

•

Rinse any spilled acid from the bat-

area with plenty of ventilation.

and keep it indoors.

tery immediately with a solution of

•

Wear eye protection when

• Always charge the battery fully

water and baking soda.

checking the battery during

to prevent battery case damage

charging.

in low temperature areas.

•

The battery must be removed

from the vehicle and placed in

a well ventilated area.

(Continued)

7-32

By jump starting

Reset Features

(Continued)

After a jump start from a good bat-

The following items may need to be

•

Watch the battery during

tery, drive the vehicle for 20-30 min-

reset after the battery has been dis-

charging, and stop or reduce

utes before it is shutoff. The vehicle

charged or the battery has been dis-

the charging rate if the battery

may not restart if you shut it off

connected. See chapter 3 or 4 for:

cells begin boiling violently.

before the battery had a chance to

•

Power Windows

•

The negative battery cable

adequately recharge. See "Jump

must be removed first and

•

Trip Computer

Starting" in chapter 6 for more infor-

installed last when the battery

mation on jump starting procedures.

•

Climate Control System

is disconnected. Disconnect

•

Clock

the battery charger in the fol-

Information

•

Audio System

lowing order:

An inappropriately disposed

•

Sunroof

(1) Turn off the battery charg-

er main switch.

battery can be harmful to

•

Driver Position Memory System

the environment and human

(2) Unhook the negative

health. Dispose of the bat-

clamp from the negative

tery according to your local

battery terminal.

law(s) or regulations.

(3) Unhook the positive clamp

from the positive battery

terminal.

•

Always use a genuine

HYUNDAI approved battery

when you replace the battery.

7-33

Maintenance

TIRES AND WHEELS

Tire Care

WARNING

(Continued)

For proper maintenance, safety, and

•

Replace tires that are worn,

maximum fuel economy, you must

Tire failure may cause loss of

show uneven wear, or are dam-

vehicle control resulting in an

aged. Worn tires can cause

always maintain recommended tire

inflation pressures and stay within

accident. To reduce risk of

loss of braking effectiveness,

SERIOUS INJURY or DEATH,

steering control, or traction.

the load limits and weight distribution

recommended for your vehicle.

take the following precautions:

•

ALWAYS replace tires with the

•

Inspect your tires monthly for

same size as each tire that

proper inflation as well as

was originally supplied with

wear and damage.

this vehicle. Using tires and

•

The recommended cold tire

wheels other than the recom-

pressure for your vehicle can

mended sizes could cause

be found in this manual and on

unusual handling characteris-

the tire label located on the dri-

tics, poor vehicle control, or

ver’s side center pillar. Always

negatively affect your vehi-

use a tire pressure gauge to

cle's Anti-Lock Brake System

measure tire pressure. Tires

(ABS) resulting in a serious

with too much or too little

accident.

pressure wear unevenly caus-

ing poor handling.

•

Check the pressure of the

spare every time you check

the pressure of the other tires

on your vehicle.

(Continued)

7-34

Recommended Cold Tire

WARNING

Inflation Pressures

All tire pressures

(including the

Recommended pressures must

spare) should be checked when the

be maintained for the best ride,

tires are cold. "Cold tires" means the

vehicle handling, and minimum

vehicle has not been driven for at

tire wear.

least three hours or has been driven

Over-inflation or under-inflation

less than one mile (1.6 km).

can reduce tire life, adversely

Warm tires normally exceed recom-

affect vehicle handling, and

mended cold tire pressures by 4 to 6

lead to sudden tire failure that

psi (28 to 41 kPa). Do not release air

could result in loss of vehicle

OAE086002L

from warm tires to adjust the pres-

control resulting in an accident.

All specifications

(sizes and pres-

sure or the tires will be under-inflat-

Severe under-inflation can lead

sures) can be found on a label

ed. For recommended inflation pres-

to severe heat build-up, causing

attached to the driver's side center

sure, refer to "Tire and Wheels" in

blowouts, tread separation and

pillar.

chapter 8.

other tire failures that can result

in the loss of vehicle control

resulting in an accident. This

risk is much higher on hot days

and when driving for long peri-

ods at high speeds.

7-35

Maintenance

Check Tire Inflation Pressure

If you overfill the tire, release air by

CAUTION

pushing on the metal stem in the

Check your tires, including the spare

center of the tire valve. Recheck the

tire, once a month or more.

•

Under-inflation results in

tire pressure with the tire gauge. Be

excessive wear, poor handling

sure to put the valve caps back on

and reduced fuel economy.

How to check

the valve stems. Without the valve

Wheel deformation is also

cap, dirt or moisture could get into

Use a good quality tire pressure

possible. Keep your tire pres-

the valve core and cause air leakage.

gauge to check tire pressure. You

sures at the proper levels. If a

If a valve cap is missing, install a new

can not tell if your tires are properly

tire frequently needs refilling,

one as soon as possible.

inflated simply by looking at them.

have it checked by an author-

Radial tires may look properly inflat-

A cold tire means the vehicle has

ized HYUNDAI dealer.

ed when they are under-inflated.

been sitting for 3 hours and driven for

•

Over-inflation produces a

less than 1 mile (1.6 km) in that 3

Remove the valve cap from the tire

harsh ride, excessive wear at

hour period.

valve stem. Press the tire gauge firm-

the center of the tire tread,

ly onto the valve to get a pressure

Allow the tire to cool before measur-

and a greater possibility of

measurement. If the cold tire inflation

ing the inflation pressure. Always be

damage from road hazards.

pressure matches the recommended

sure the tire is cold before inflating to

pressure on the tire label located on

the recommended pressure.

the driver's side center pillar or in this

manual. No further adjustment is

necessary. If the pressure is low, add

air until you reach the recommended

pressure. Make sure to put the valve

caps back on the valve stems.

Without the valve cap, dirt or mois-

ture could get into the valve core and

cause air leakage. If a valve cap is

missing, install a new one as soon as

possible.

7-36

Tire Rotation

■ Without a spare tire

Information

To equalize tread wear, HYUNDAI

Tires that are asymmetrical or direc-

recommends that the tires be rotated

tional can only be installed on the

every 7,500 miles

(12,000 km) or

wheel in one direction. The outside

sooner if irregular wear develops.

and inside of an asymmetrical tire is

During rotation, check the tires for

not easily distinguishable. Pay careful

correct balance.

attention to the markings on the side-

walls of the tires, noting the "outside"

When rotating tires, check for uneven

wear and damage. Abnormal wear is

marking and also the rotating direc-

tion before installing them on the

usually caused by incorrect tire pres-

sure, improper wheel alignment, out-

vehicle.

ODH073802

of-balance wheels, severe braking or

Disc brake pads should be inspected

severe cornering. Look for bumps or

WARNING

for wear whenever tires are rotated.

bulges in the tread or side of the tire.

Replace the tire if you find any of

• Do not use the compact spare

these conditions. Replace the tire if

tire for tire rotation.

fabric or cord is visible. After rotation,

• Do not mix bias ply and radial

be sure to bring the front and rear tire

ply tires under any circum-

pressures to specification and check

stances. This may cause

lug nut tightness (proper torque is

unusual handling characteris-

79~94 lbf·ft [11~13 kgf·m]).

tics that may cause loss of

vehicle control resulting in an

accident.

7-37

Hyundai Ioniq Plug-in Hybrid (2018 year). Manual - part 27