2020 Hyundai Ioniq Hybrid engine overheat

5-24
Driving your vehicle
If you need to use the shift-lock
release, we recommend that the sys-
tem be inspected by an authorised
HYUNDAI dealer immediately.
Ignition key interlock system
(if equipped)
The ignition key cannot be removed
unless the shift lever is in the P
(Park) position.
Parking
Always come to a complete stop and
continue to depress the brake pedal.
Move the shift lever into the P (Park)
position, apply the parking brake,
and place the ignition switch in the
LOCK/OFF position. Take the Key
with you when exiting the vehicle.
Good driving practices
Never move the shift lever from P
(Park) or N (Neutral) to any other
position with the accelerator pedal
depressed.
Never move the shift lever into P
(Park) when the vehicle is in
motion.
Be sure the vehicle is completely
stopped before you attempt to shift
into R (Reverse) or D (Drive).
Do not move the shift lever to N
(Neutral) when driving. If the shift
lever is moved to N (Neutral) whilst
driving, the vehicle loses the ability
to provide engine braking. Doing
so may increase the risk of an acci-
dent.
Also, moving the shift lever back to
D (Drive) whilst the vehicle is mov-
ing may severely damage the
transmission.
Do not drive with your foot resting
on the brake pedal. Even light, but
consistent pedal pressure can
result in the brakes overheating,
brake wear and possibly even
brake failure. When you stay in the vehicle
with the engine running, be
careful not to depress the accel-
erator pedal for a long period of
time. The engine or exhaust
system may overheat and start
a fire.
The exhaust gas and the
exhaust system are very hot.
Keep away from the exhaust
system components.
Do not stop or park over flam-
mable materials, such as dry
grass, paper or leaves. They
may ignite and cause a fire.
WARNING

5-150
Driving your vehicle
Hazardous driving conditions
When hazardous driving elements
are encountered such as water,
snow, ice, mud and sand, take the
bellow suggestions:
Drive cautiously and keep a longer
braking distance.
Avoid abrupt braking or steering.
When your vehicle is stuck in snow,
mud, or sand, use second gear.
Accelerate slowly to avoid unnec-
essary wheel spin.
Put sand, rock salt, tyre chains or
other non-slip materials under the
wheels to provide additional trac-
tion whilst the vehicle becomes
stuck in ice, snow, or mud.
Rocking the vehicle
If it is necessary to rock the vehicle
to free it from snow, sand, or mud,
first turn the steering wheel right and
left to clear the area around your
front wheels. Then, shift back and
forth between R (Reverse) and a for-
ward gear.
Try to avoid spinning the wheels, and
do not race the engine.
To prevent transmission wear, wait
until the wheels stop spinning before
shifting gears. Release the accelera-
tor pedal whilst shifting, and press
lightly on the accelerator pedal whilst
the transmission is in gear. Slowly
spinning the wheels in forward and
reverse directions causes a rocking
motion that may free the vehicle.
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Downshifting with a dual clutch
transmission whilst driving on
slippery surfaces can cause an
accident. The sudden change in
tyre speed could cause the
tyres to skid. Be careful when
downshifting on slippery sur-
faces.
WARNING
If the vehicle is stuck and
excessive wheel spin occurs,
the temperature in the tyres can
increase very quickly. If the
tyres become damaged, a tyre
blow out or tyre explosion can
occur. This condition is danger-
ous - you and others may be
injured. Do not attempt this pro-
cedure if people or objects are
anywhere near the vehicle.
If you attempt to free the vehi-
cle, the vehicle can overheat
quickly, possibly causing an
engine compartment fire or
other damage. Try to avoid spin-
ning the wheels as much as
possible to prevent overheating
of either the tyres or the engine.
DO NOT allow the vehicle to
spin the wheels above 56 km/h.
WARNING

5-151
Driving your vehicle
5
Information
The ESC system (if equipped) must be
turned OFF before rocking the vehi-
cle.
If you are still stuck after rocking
the vehicle a few times, have the
vehicle pulled out by a tow vehicle
to avoid engine overheating, pos-
sible damage to the transmission,
and tyre damage. See "Towing" in
chapter 6.
Smooth cornering
Avoid braking or gear changing in
corners, especially when roads are
wet. Ideally, corners should always
be taken under gentle acceleration.
Driving at night
Night driving presents more hazards
than driving in the daylight. Here are
some important tips to remember:
Slow down and keep more dis-
tance between you and other vehi-
cles, as it may be more difficult to
see at night, especially in areas
where there may not be any street
lights.
Adjust your mirrors to reduce the
glare from other drivers' head-
lamps.
Keep your headlamps clean and
properly aimed. Dirty or improperly
aimed headlamps will make it
much more difficult to see at night.
Avoid staring directly at the head-
lamps of oncoming vehicles. You
could be temporarily blinded, and it
will take several seconds for your
eyes to readjust to the darkness.
Driving in the rain
Rain and wet roads can make driving
dangerous. Here are a few things to
consider when driving in the rain or
on slick pavement:
Slow down and allow extra follow-
ing distance. A heavy rainfall
makes it harder to see and increas-
es the distance needed to stop
your vehicle.
Turn OFF your Cruise Control. (if
equipped)
Replace your windscreen wiper
blades when they show signs of
streaking or missing areas on the
windscreen.
Be sure your tyres have enough
tread. If your tyres do not have
enough tread, making a quick stop
on wet pavement can cause a skid
and possibly lead to an accident.
See "Tyre Tread" in chapter 7.
Turn on your headlamps to make it
easier for others to see you.
Driving too fast through large pud-
dles can affect your brakes. If you
must go through puddles, try to
drive through them slowly.
NOTICE
i

5-152
Driving your vehicle
If you believe your brakes may be
wet, apply them lightly whilst driv-
ing until normal braking operation
returns.
Hydroplaning
If the road is wet enough and you are
going fast enough, your vehicle may
have little or no contact with the road
surface and actually ride on the
water. The best advice is SLOW
DOWN when the road is wet.
The risk of hydroplaning increas-
es as the depth of tyre tread
decreases, refer to "Tyre Tread" in
chapter 7.
Driving in flooded areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel
hub. Drive through any water slowly.
Allow adequate stopping distance
because brake performance may be
reduced.
After driving through water, dry the
brakes by gently applying them sev-
eral times whilst the vehicle is mov-
ing slowly.
Highway driving
Tyres
Adjust the tyre inflation, as specified.
Under-inflation may overheat or
damage the tyres.
Do not install worn-out or damaged
tyres, which may reduce traction or
fail the braking operation.
Information
Never over-inflate your tyres above
the maximum inflation pressure, as
specified on your tyres.
Fuel, engine coolant and engine
oil
Driving at higher speeds on the high-
way consumes more fuel and is less
efficient than driving at a slower,
more moderate speed. Maintain a
moderate speed in order to conserve
fuel when driving on the highway.
Be sure to check both the engine
coolant level and the engine oil
before driving.
Drive belt
A loose or damaged drive belt may
overheat the engine.
i

What to do in an emergency
In case of an emergency whilst driving .............6-2
Hazard warning flasher ........................................6-2
If the engine stalls whilst driving ..................................6-2
If the engine stalls at a crossroad or crossing .........6-2
If you have a flat tyre whilst driving ...........................6-3
If the 12 volt battery is discharged
(hybrid vehicle) ......................................................6-5
Before jump starting ........................................................6-5
Jump starting ......................................................................6-6
If the 12 volt battery is discharged
(plug-in hybrid vehicle) ........................................6-9
Jump starting ......................................................................6-9
If the engine overheats ......................................6-12
Tyre Pressure Monitoring System (TPMS) ......6-14
Check tyre pressure .......................................................6-14
Tyre pressure monitoring system ...............................6-15
Low tyre pressure telltale.............................................6-16
Low tyre pressure position and
tyre pressure telltale ......................................................6-16
TPMS (Tyre Pressure Monitoring System)
malfunction indicator .....................................................6-17
Changing a tyre with TPMS .........................................6-18
If you have a flat tyre(with spare tyre) ..........6-20
Jack and tools .................................................................6-20
Changing tyres .................................................................6-21
If you have a flat tyre (with tyre mobility kit)6-26
Type A ................................................................................6-26
Type B ................................................................................6-33
Towing ...................................................................6-42
Towing service .................................................................6-42
Removable towing hook ...............................................6-43
Emergency towing .........................................................6-44
6

6-12
What to do in an emergency
If your temperature gauge indicates
overheating, you experience a loss
of power, or hear loud pinging or
knocking, the engine may be over-
heating. If this happens, you should:
1. Pull off the road and stop as soon
as it is safe to do so.
2. Place the shift lever in P (Park)
and set the parking brake3. Make sure that there is no hot
steam gushing out of the engine
compartment. When it is safe to
do so, open the engine compart-
ment, and check the water-pump
connector. When the water-pump
connector is disconnected, stop
the engine, re-connect the water-
pump connector, and then re-start
the engine.
4. Set the temperature and the air
flow to the maximum, and turn ON
the air conditioner.5. When the Service warning light
( ) illuminates on the instru-
ment cluster, immediately stop the
engine, and contact an authorised
HYUNDAI dealer. When the
engine warning light ( ) illumi-
nates, or when the coolant or hot
steams gush out of the engine
compartment, leave the engine
compartment opened, whilst run-
ning the engine. This is to ventilate
the engine compartment and to
cool down the engine.
6. Check the coolant temperature
gauge on the instrument cluster to
make sure the coolant temperature
is sufficiently cooled down. Check
the coolant level. When it is insuffi-
cient, check its connection with the
radiator, the heater hose, and the
water pump for any leakage. When
there is no leakage, add the
coolant. However, if the problems
persists, such as the illumination of
the warning lights, leakages, or the
cooling-fan malfunction, which may
overheat the engine, immediately
stop the engine, and have your
vehicle checked by an authorised
HYUNDAI dealer.
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Whilst the engine is
running, keep hands,
clothing and tools
away from the mov-
ing parts such as the
cooling fan and drive
belt to prevent seri-
ous injury.
WARNING
OAE066005

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

6-28
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.