2021 HYUNDAI I20 engine overheat

5-6
Instrument cluster
Engine Coolant Temperature Gauge
OIB044113OIB044113
„„Type AType A
„„Type BType B
OBI3040006OBI3040006
This gauge shows the temperature of the
engine coolant when the ignition switch
is in the ON position.
NOTICE
If the gauge pointer moves beyond the
normal range area toward the “130”
position, it indicates overheating that
may damage the engine.
Do not continue driving with an
overheated engine. If your vehicle
overheats, refer to “If the Engine
Overheats” in chapter 8.
WARNING
Never remove the radiator cap or
reservoir cap when the engine is hot.
The engine coolant is under pressure
and could cause severe burns. Wait
until the engine is cool before adding
coolant to the reservoir.
Odometer
OIB044116OIB044116
„„ Type A Type A
OIB044115OIB044115
„„Type BType B
The odometer indicates the total
distance that the vehicle has been
driven and should be used to determine
when periodic maintenance should be
performed.
- Odometer range : 0 ~ 1599999
kilometers or 999999 miles.
i Information
It is forbidden to alter the odometer of
all vehicles with the intent to change
the mileage registered on the odometer.
The alteration may void your warranty
coverage.

5-22
Instrument cluster
Low engine oil (if equipped)
This warning message is displayed when
the engine oil level should be checked.
If this warning message is displayed,
check the engine oil level as soon as
possible and add engine oil as required.
Slowly pour the recommended oil little
by little into a funnel.
Use only the specified engine oil. (Refer
to "Recommended lubricants and
capacities" section in chapter 2.)
Do not overfill the engine oil. Make sure
the oil level is not above F (Full) mark on
the dipstick.
NOTICE
If the message is displayed
continuously after adding the engine
oil and travelling approximately
50~100 km after the engine warms up,
we recommend that the system be
checked by an authorized HYUNDAI
dealer.
Engine has overheated
(if equipped)
This warning message is displayed
when the engine coolant temperature
is above 120°C (248°F). This means that
the engine is overheated and may be
damaged.
If your vehicle is overheated, refer to
“Overheating” section in chapter 8.
Check headlight (if equipped)
This warning message is displayed if the
headlamps are not operating properly.
In addition, if a specific lamp(turn signal
lamp etc.) is not operating properly, the
warning message according to a specific
lamp (turn signal lamp etc.) is displayed.
A corresponding bulb may need to be
replaced.
Make sure to replace the burned out
bulb with a new one of the same
wattage rating.
Check brake light (if equipped)
This warning message is displayed if the
stop lamps are not operating properly. A
lamp may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same
wattage rating.

6-59
06
Air conditioning
HYUNDAI Air Conditioning Systems are
filled with R-134a refrigerant.
1. Start the engine.
2. Push the air conditioning button.
3. Select the Face Level
mode.
4. Set the air intake control to
Recirculation mode temporarily to
allow the cabin to cool quickly. When
the desired temperature in the cabin
is reached, change the air intake
control back to Fresh mode.
5. Adjust the fan speed control and
temperature control to maintain
maximum comfort.
NOTICE
• The refrigerant system should only
be serviced by trained and certified
technicians to insure proper and safe
operation.
• The refrigerant system should be
serviced in a well-ventilated place.
• The air conditioning evaporator
(cooling coil) shall never be repaired
or replaced with one removed from
a used or salvaged vehicle and new
replacement MAC evaporators shall
be certified (and labeled) as meeting
SAE Standard J2842.
i Information
• When using the air conditioning system,
monitor the temperature gauge closely
while driving up hills or in heavy traffic
when outside temperatures are high.
Air conditioning system operation may
cause engine overheating. Continue
to use the blower fan but turn the
air conditioning system off if the
temperature gauge indicates engine
overheating.
• When opening the windows in humid
weather, air conditioning may create
water droplets inside the vehicle. Since
excessive water droplets may cause
damage to electrical equipment, air
conditioning should only be used with
the windows closed.

6-70
Convenient features
NOTICE
• The refrigerant system should only
be serviced by trained and certified
technicians to insure proper and safe
operation.
• The refrigerant system should be
serviced in a well-ventilated place.
• The air conditioning evaporator
(cooling coil) shall never be repaired
or replaced with one removed from
a used or salvaged vehicle and new
replacement MAC evaporators shall
be certified (and labeled) as meeting
SAE Standard J2842.
i Information
• When using the air conditioning system,
monitor the temperature gauge closely
while driving up hills or in heavy traffic
when outside temperatures are high.
Air conditioning system operation may
cause engine overheating. Continue
to use the blower fan but turn the
air conditioning system off if the
temperature gauge indicates engine
overheating.
• When opening the windows in humid
weather, air conditioning may create
water droplets inside the vehicle. Since
excessive water droplets may cause
damage to electrical equipment, air
conditioning should only be used with
the windows closed.
Air conditioning system operation tips
• If the vehicle has been parked in direct
sunlight during hot weather, open the
windows for a short time to let the hot
air inside the vehicle escape.
• After sufficient cooling has been
achieved, switch back from
recirculation mode to fresh mode.
• To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system with the windows
and sunroof closed.
• During air conditioning system
operation, you may occasionally
notice a slight change in engine speed
as the air conditioning compressor
cycles. This is a normal system
operation characteristic.
• Use the air conditioning system
every month only for a few minutes
to ensure maximum system
performance.
• When using the air conditioning
system, you may notice clear water
dripping (or even puddling) on the
ground under the passenger side of
the vehicle. This is a normal system
operation characteristic.
• If you operate the air conditioner
excessively, the difference between
the temperature of the outside air and
that of the windshield could cause the
outer surface of the windshield to fog
up, causing loss of visibility. In this
case, set the mode selection button to
the
position and set the fan speed
control knob to the lowest speed
setting.

6-81
06
NOTICE
To prevent damage to the Power outlet:
• Use the power outlet only when the
engine is running and remove the
accessory plug after use. Using the
accessory plug for prolonged periods
of time with the engine off could
cause the battery to discharge.
• Only use 12V electric accessories
which are less than 180W (Watt) in
electric capacity.
• Adjust the air-conditioner or heater
to the lowest operating level when
using the power outlet.
• Close the cover when not in use.
• Some electronic devices can cause
electronic interference when plugged
into a vehicle’s power outlet. These
devices may cause excessive audio
static and malfunctions in other
electronic systems or devices used in
your vehicle.
• Push the plug in as far as it will go.
If good contact is not made, the
plug may overheat or the internal
temperature fuse may open.
• Plug in battery equipped electrical/
electronic devices with reverse
current protection. The current
from the battery may flow into the
vehicle’s electrical/electronic system
and cause system malfunction.
USB charger (if equipped)
OBI3050071OBI3050071
„„FrontFront
„„RearRear
OBI3050058OBI3050058
The USB charger is designed to recharge
batteries of small size electrical devices
using a USB cable.
The electrical devices can be recharged
when the Engine Start/ Stop button is in
the ACC, ON or START position.
The battery charging state may be
monitored on the electrical device.
Disconnect the USB cable from the USB
port after use.
• A smart phone or a tablet PC may
get warmer during the re-charging
process. It does not indicate any
malfunction with the charging system.
• A smart phone or a tablet PC, which
adopts a different re-charging
method, may not be properly
re-charged. In this case, use an
exclusive charger of your device.
• The charging terminal is only to
recharge a device. Do not use the
charging terminal either to turn ON
an audio or to play media on the
infotainment system.

7-17
07
Good driving practices
• Never take the vehicle out of gear and
coast down a hill. This is extremely
dangerous.
• Don’t “ride” the brakes. This can
cause the brakes and related parts to
overheat and malfunction.
When you are driving down a long hill,
slow down and shift to a lower gear.
Engine braking will help slow down
the vehicle.
• Slow down before shifting to a lower
gear. This will help avoid over-revving
the engine, which can cause damage.
• Slow down when you encounter cross
winds. This gives you much better
control of your vehicle.
• Be sure the vehicle is completely
stopped before you shift into R
(Reverse) to prevent damage to the
transmission.
• Exercise extreme caution when driving
on a slippery surface. Be especially
careful when braking, accelerating or
shifting gears. On a slippery surface,
an abrupt change in vehicle speed can
cause the drive wheels to lose traction
and may cause loss of vehicle control
resulting in an accident.
WARNING
Do not use the engine brake (shifting
from a higher gear to lower gear)
rapidly on slippery roads. The vehicle
may slip causing an accident.
WARNING
To reduce the risk of SERIOUS INJURY
or DEATH:
• ALWAYS wear your seatbelt. In a
collision, an unbelted occupant
is significantly more likely to be
seriously injured or killed than a
properly belted occupant.
• Avoid high speeds when cornering or
turning.
• Do not make quick steering wheel
movements, such as sharp lane
changes or fast, sharp turns.
• The risk of rollover is greatly
increased if you lose control of your
vehicle at highway speeds.
• Loss of control often occurs if two or
more wheels drop off the roadway
and the driver over steers to reenter
the roadway.
• In the event your vehicle leaves
the roadway, do not steer sharply.
Instead, slow down before pulling
back into the travel lanes.
• HYUNDAI recommends you follow all
posted speed limits.

7-20
Driving your vehicle
Good driving practices
• Never take the vehicle out of gear and
coast down a hill. This is extremely
hazardous. Always leave the vehicle
in gear.
• Don’t “ride” the brakes. This can cause
them to overheat and malfunction.
Instead, when you are driving down a
long hill, shift to a lower gear. When
you do this, engine braking will help
slow down the vehicle.
• Slow down before shifting to a lower
gear. This will help avoid over-revving
the engine, which can cause damage.
• Slow down when you encounter cross
winds. This gives you much better
control of your vehicle.
• Be sure the vehicle is completely
stopped before you attempt to shift
into reverse. The transmission can be
damaged if you do not.
• Exercise extreme caution when driving
on a slippery surface. Be especially
careful when braking, accelerating or
shifting gears. On a slippery surface,
an abrupt change in vehicle speed can
cause the drive wheels to lose traction
and the vehicle to go out of control.
WARNING
• Always buckle-up! In a collision, an
unbelted occupant is significantly
more likely to be seriously injured
or killed than a properly belted
occupant.
• Avoid high speeds when cornering or
turning.
• Do not make quick steering wheel
movements, such as sharp lane
changes or fast, sharp turns.
• The risk of rollover is greatly
increased if you lose control of your
vehicle at highway speeds.
• Loss of control often occurs if two or
more wheels drop off the roadway
and the driver oversteers to reenter
the roadway.
• In the event your vehicle leaves
the roadway, do not steer sharply.
Instead, slow down before pulling
back into the travel lanes.
• Never exceed posted speed limits.

7-24
Driving your vehicle
OAC3069032TUOAC3069032TU
Transmission high temperature
• Under certain conditions, such as
repeated stop-and-go launches on
steep grades, sudden take off or
acceleration, or other harsh driving
conditions, the transmission clutch
temperatures will increase excessively.
• When the clutch is overheated, the
safe protection mode engages and the
gear position indicator on the cluster
blinks with a chime. At this time,
“Transmission temp. is high! Stop
safely” warning message will appear
on the LCD display and driving may
not be smooth.
• If this occurs, pull over to a safe
location, stop the vehicle with the
engine running, apply the brakes
and shift the vehicle to P (Park) with
engine on, and allow the transmission
to cool.
• If you ignore this warning, the driving
condition may become worse. You
may experience abrupt shifts, frequent
shifts, or jerkiness. To return to the
normal driving condition, stop the
vehicle and apply the foot brake or
shift into P (Park). Then allow the
transmission to cool for a few minutes
with engine on, before driving off.
• When possible, drive the vehicle
smoothly.
OAC3069035TUOAC3069035TU
OAC3069063TUOAC3069063TU
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Transmission overheated
• If the vehicle continues to be driven
and the clutch temperatures reach
the maximum temperature limit, the
“Trans Hot! Park with engine on”
warning will be displayed. When this
occurs the clutch is disabled until the
clutch cools to normal temperatures.
• The warning will display a time to wait
for the transmission to cool.