2020 Hyundai Ioniq Hybrid engine

6-13
What to do in an emergency
6
7. If you cannot find the cause of the
overheating, wait until the engine
temperature has returned to nor-
mal. Then, if coolant has been
lost, carefully add coolant to the
reservoir to bring the fluid level in
the reservoir up to the halfway
mark.
8. Proceed with caution, keeping
alert for further signs of overheat-
ing. If overheating happens again,
we recommend that you call an
authorised HYUNDAI dealer for
assistance.
Serious loss of coolant indi-
cates a leak in the cooling
system and we recommend
the system be checked by an
authorised HYUNDAI dealer.
When the engine overheats
from low engine coolant, sud-
denly adding engine coolant
may cause cracks in the
engine. To prevent damage,
add engine coolant slowly in
small quantities.
CAUTION
Never remove the
engine coolant cap
and/or inverter coolant
cap or the drain plug
whilst 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 remov-
ing the engine coolant cap
and/or inverter coolant cap.
Wrap a thick towel around it, and
turn it anticlockwise slowly to
the first stop. Step back whilst
the pressure is released from the
cooling system. When you are
sure all the pressure has been
released, press down on the cap,
using a thick towel, and continue
turning anticlockwise to remove
it.
WARNING

6-14
(1) Low Tyre Pressure Telltale/TPMS
Malfunction Indicator
(2) Low Tyre Pressure Position
Telltale and Tyre Pressure
Telltale
(Shown on the LCD display)
Check tyre pressure
(if equipped)
You can check the tyre pressure in
the Information Mode (for cluster
type A) or Assist Mode (for cluster
type B) on the cluster.
Refer to the “LCD Display
Modes” in chapter 3.
Tyre pressure is displayed after a
few minutes of driving after initial
engine start up.
If tyre pressure is not displayed
when the vehicle is stopped, "Drive
to display" message will appear.
After driving, check the tyre pres-
sure. The displayed tyre pressure values
may differ from those measured
with a tyre pressure gauge.
You can change the tyre pressure
unit in the User Settings mode on
the LCD display.
- psi, kpa, bar (Refer to the "User
Settings Mode" section in
chapter 3).
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What to do in an emergency
OAE066006R■Type A
■Type A■Type B
■Type B
OAE046114L/OAE046115L
OAE046460L/OAE066030L

6-16
If any of the below happens, have
the system checked by an autho-
rised HYUNDAI dealer.
1. The Low Tyre Pressure Telltale/
TPMS Malfunction Indicator
does not illuminate for 3 sec-
onds when the ignition switch
is placed to the ON position or
engine is running.
2. The TPMS Malfunction Indicator
remains illuminated after blink-
ing for approximately 1 minute.
3. The Low Tyre Pressure Position
Telltale remains illuminated.
Low tyre pressure
telltale
Low tyre pressure position and
tyre pressure telltale
When the tyre pressure monitoring
system warning indicators are illumi-
nated and a warning message dis-
played on the cluster LCD display,
one or more of your tyres is signifi-
cantly under-inflated. The Low Tyre
Pressure Position Telltale will indi-
cate which tyre is significantly under-
inflated by illuminating the corre-
sponding position light.If either telltale illuminates, immedi-
ately reduce your speed, avoid hard
cornering and anticipate increased
stopping distances. You should stop
and check your tyres as soon as pos-
sible. Inflate the tyres to the proper
pressure as indicated on the vehi-
cle’s placard or tyre inflation pres-
sure label located on the driver’s side
centre pillar outer panel.
If you cannot reach a service station
or if the tyre cannot hold the newly
added air, replace the low pressure
tyre with the spare tyre.
The Low Tyre Pressure Telltale will
remain on and the TPMS Malfunction
Indicator may blink for one minute
and then remain illuminated (when
the vehicle is driven approximately
10 minutes at speed above 25 km/h
(15.5 mph)) until you have the low
pressure tyre repaired and replaced
on the vehicle.
NOTICE
What to do in an emergency
■Type A■Type B
OAE046114L/OAE046115L

6-21
What to do in an emergency
6
If it is hard to loosen the tyre hold
down wing bolt by hand, you can
loosen it easily using the jack handle.
1. Put the jack handle (1) inside of
the tyre hold-down wing bolt.
2. Turn the tyre hold-down wing bolt
anticlockwise with the jack handle.
Changing tyres
A vehicle can slip or roll off of a
jack causing serious injury or
death to you or those nearby.
Take the following safety pre-
cautions:
Never attempt vehicle repairs
in the traffic lanes of a public
road or highway.
Always move the vehicle com-
pletely off the road and onto
the shoulder before trying to
change a tyre. The jack should
be used on firm level ground.
If you cannot find a firm level
place off the road, call a tow-
ing service company for
assistance.
Be sure to use the correct
front and rear jacking posi-
tions on the vehicle; never
use the bumpers or any other
part of the vehicle for jacking
support.
(Continued)
WARNING
(Continued)
The vehicle can easily roll off
the jack causing serious
injury or death.
Do not get under a vehicle
that is supported by a jack.
No person should place any
portion of their body under a
vehicle that is supported by a
jack.
Chock the wheel diagonally
opposite the flat tyre.
Do not start or run the engine
whilst the vehicle is on the
jack.
Do not allow anyone to remain
in the vehicle whilst it is on
the jack.
Make sure any children pres-
ent are in a secure place away
from the road and from the
vehicle to be raised with the
jack.
OAD067033

6-28
What to do in an emergency
Use of the Tyre Mobility Kit may not
be effective for tyre damage larger
than approximately 6 mm (0.24 inch).
Please contact the nearest
HYUNDAI dealership if the tyre
cannot be made roadworthy with
the Tyre Mobility Kit.
Do not use the Tyre Mobility Kit if a
tyre is severely damaged by driving
run flat or with insufficient air pres-
sure.
Do not remove any foreign objects
such as nails or screws that have
penetrated the tyre.
Provided the car is outdoors, leave
the engine running. Otherwise
operating the compressor may
eventually drain the car battery.
Never leave the Tyre Mobility Kit
unattended whilst it is being used.
Do not leave the compressor run-
ning for more than 10 minutes at a
time or it may overheat. Do not use the Tyre Mobility Kit if
the ambient temperature is below
-30°C (-22°F).
In case of skin contact with the
sealant, wash the area thoroughly
with plenty of water. If the irritation
persists, seek medical attention.
In case of eye contact with the
sealant, flush your eyes for at least
15 minutes. If the irritation persists,
seek medical attention.
In case of swallowing the sealant,
rinse the mouth and drink plenty of
water. However, never give any-
thing to an unconscious person
and seek medical attention imme-
diately.
Long time exposure to the sealant
may cause damage to bodily tissue
such as kidney, etc.

6-35
What to do in an emergency
Notes on the safe use of the
Tyre Mobility Kit
Park your car at the side of the road
so that you can work with the Tyre
Mobility Kit away from moving traffic.
To be sure your vehicle will not
move, even when you’re on fairly
level ground, always set your park-
ing brake.
Only use the Tyre Mobility Kit for
sealing/inflation passenger car tyres.
Only punctured areas located within
the tread region of the tyre can be
sealed using the tyre mobility kit.
Do not use on motorcycles, bicycles
or any other type of tyres.
When the tyre and wheel are dam-
aged, do not use Tyre Mobility Kit for
your safety.
Use of the Tyre Mobility Kit may not
be effective for tyre damage larger
than approximately 6 mm (0.24 inch).
Please contact the nearest
HYUNDAI dealership if the tyre can-
not be made roadworthy with the
Tyre Mobility Kit.
Do not use the Tyre Mobility Kit if a
tyre is severely damaged by driving
run flat or with insufficient air pres-
sure. Do not remove any foreign objects
such as nails or screws that have
penetrated the tyre.
Provided the car is outdoors, leave
the engine running. Otherwise oper-
ating the compressor may eventually
drain the car battery.
Never leave the Tyre Mobility Kit
unattended whilst it is being used.
Do not leave the compressor running
for more than 10 minutes at a time or
it may overheat.
Do not use the Tyre Mobility Kit if the
ambient temperature is below
-30°C (-22°F).
In case of skin contact with the
sealant, wash the area thoroughly
with plenty of water. If the irritation
persists, seek medical attention.
In case of eye contact with the
sealant, flush your eyes for at least
15 minutes. If the irritation persists,
seek medical attention.
In case of swallowing the sealant,
rinse the mouth and drink plenty of
water. However, never give anything
to an unconscious person and seek
medical attention immediately.
Long time exposure to the sealant
may cause damage to bodily tissue
such as kidney, etc.
6

7
Maintenance
7
Maintenance
Engine compartment .............................................7-3
Maintenance services ...........................................7-5
Owner's responsibility ......................................................7-5
Owner maintenance precautions ..................................7-5
Owner maintenance ...............................................7-6
How to Disconnect the (-) Cable for
Regular Maintenance .......................................................7-6
Owner maintenance schedule ........................................7-7
Scheduled maintenance services.........................7-8
Normal maintenance schedule .......................................7-9
Maintenance under severe usage conditions ..........7-13
Explanation of scheduled maintenance items .7-15
Engine oil ..............................................................7-17
Checking the engine oil level .......................................7-17
Checking the engine oil and filter ..............................7-18
Engine coolant/inverter coolantz .....................7-19
Checking the coolant level ...........................................7-19
Changing coolant.............................................................7-22
Brake fluid ............................................................7-23
Checking the brake fluid level .....................................7-23
Hybrid Starter & Generator (HSG) belt ............7-23
Checking the hybrid starter & generator (HSG)
belt ......................................................................................7-23
Washer fluid .........................................................7-24
Checking the washer fluid level ..................................7-24
Air cleaner ............................................................7-25
Parking brake .......................................................7-25
Checking the parking brake .........................................7-25
Filter replacement ...........................................................7-25
Climate control air filter .....................................7-27
Filter inspection ...............................................................7-27
Wiper blades .........................................................7-29
Blade inspection ..............................................................7-29
Blade replacement ..........................................................7-29
Battery (12 volt, plug-in hybrid vehicle) .........7-32
For best battery service................................................7-33
Battery capacity label ....................................................7-34
Battery recharging .........................................................7-34
Reset features .................................................................7-35
7

Tyres and wheels .................................................7-36
Tyre care ...........................................................................7-36
Recommended cold tyre inflation pressures ...........7-37
Check tyre inflation pressure ......................................7-38
Tyre rotation ....................................................................7-39
Wheel alignment and tyre balance.............................7-40
Tyre replacement ............................................................7-40
Wheel replacement .........................................................7-41
Tyre traction .....................................................................7-41
Tyre maintenance ...........................................................7-42
Tyre sidewall labelling ....................................................7-42
Low aspect ratio tyres...................................................7-46
Fuses ......................................................................7-47
Instrument panel fuse replacement ...........................7-48
Engine compartment panel fuse replacement.........7-49
Fuse/relay panel description .......................................7-51
Light bulbs.............................................................7-61
Headlamp, position lamp, turn signal lamp bulb
replacement ......................................................................7-62
Daytime running lamp ....................................................7-66
Side repeater lamp replacement .................................7-66
Rear combination lamp bulb replacement ................7-66
Rear fog lamp ..................................................................7-69
High mounted stop lamp ...............................................7-70
Licence plate light bulb replacement .........................7-70
Interior light bulb replacement ....................................7-70
Appearance care ..................................................7-72
Exterior care ....................................................................7-72
Interior care......................................................................7-78
Emission control system .....................................7-81
Crankcase emission control system ...........................7-81
Evaporative emission control system.........................7-81
Exhaust emission control system ...............................7-82
Procedure for entering forced engine activation
mode ......................................................................7-85