engine overheat Hyundai Ioniq Plug-in Hybrid 2020 Owner's Manual

2-22
Safety system of your vehicle
Each time you push the switch, the
temperature setting of the seat is
changed as follows :
The seat warmer defaults to the OFF
position whenever the Engine Start/
Stop button is placed in the ON posi-
tion.
Information
With the seat warmer switch in the
ON position, the heating system in the
seat turns off or on automatically
depending on the seat temperature.
Battery Cooling Duct
The high voltage battery cooling duct
is located on the left side of the rear
seats. The cooling duct cools down
the high voltage battery.When the high voltage battery cool-
ing duct is blocked, the high voltage
battery may be overheated. Do not
obstruct the cooling duct with any
other objects.
i
OFF →HIGH ( ) →LOW ( )
→
OAE036024
■Hybrid vehicle
OAEPH036024
■Plug-in hybrid vehicle

3-74
Convenient features of your vehicle
Engine Coolant
Temperature Warning
Light
This warning light illuminates:
When the engine coolant temper-
ature is above 248°F (120°C). This
means that the engine is overheat-
ed and may be damaged.
If your vehicle is overheated, refer
to "Overheating" in chapter 6.
Master Warning Light
This indicator light illuminates:
When there is a malfunction in oper-
ation in any of the following systems:
- Forward Collision-Avoidance
Assist system malfunction
(if equipped)
- Forward Collision-Avoidance
Assist radar blocked (if equipped)
- Blind-Spot Collision Warning
system malfunction (if equipped)
- Blind-Spot Collision Warning radar
blocked (if equipped)
- Smart Cruise Control malfunction
(if equipped)
- LED Headlamp malfunction
- High Beam Assist malfunction
(if equipped)
- Tire Pressure Monitoring System
(TPMS) malfunction (if equipped)
To identify the details of the warning,
look at the LCD display.
Low Tire Pressure
Warning Light
(if equipped)
This warning light illuminates:
When you place Engine Start/Stop
button to the ON position.
- It illuminates for approximately 3
seconds and then goes off.
When one or more of your tires are
significantly underinflated.
For more details, refer to
"Tire Pressure Monitoring System
(TPMS)" in chapter 6.

3-81
Convenient features of your vehicle
3
Press START button with key
This message is displayed if you
press the Engine Start/Stop button
while the warning message "Key not
detected" is displayed.
At this time, the immobilizer indicator
light blinks.
Check BRAKE SWITCH fuse
This message is displayed if the
brake switch fuse is disconnected.
You need to replace the fuse with a
new one before starting the engine.
If that is not possible, you can start
the engine by pressing the Engine
Start/Stop button for 10 seconds in
the ACC position.
Shift to P to start vehicle
This message is displayed if you try
to start the engine with the shift lever
not in the P (Park) position.
Low Washer Fluid (if equipped)
This warning message is displayed
if the washer fluid level in the reser-
voir is nearly empty.
Have the washer fluid reservoir
refilled.
Low Fuel
This warning message is displayed if
the fuel tank is almost out of fuel.
When this message is displayed, the
low fuel level warning light in the
cluster will come on.
It is recommended to look for the
nearest fueling station and refuel as
soon as possible.
Add fuel as soon as possible.
Icy Road Warning (if equipped)
This warning message is to warn the
driver the road may be icy.
When the temperature on the out-
side temperature gauge is approxi-
mately below 4°C (40°F), the Icy
Road Warning message.
Information
If the icy road warning message
appears while driving, you should
drive more attentively and safely
refraining from over-speeding, rapid
acceleration, sudden braking or sharp
turning, etc.
Engine has overheated/
Engine overheated
This warning message is displayed
when the engine coolant tempera-
ture 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" in chapter 6.
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3-113
Convenient features of your vehicle
3
Engine coolant temperature
This gauge indicates the tempera-
ture of the engine coolant when the
engine is running.
When the gauge indicator gets out
of the normal range, toward the
"Red" position, it indicates over-
heating of the engine. It may dam-
age the engine.
Do not continue driving with the
overheated engine. For further
information, refer to "If the Engine
Overheats" in the chapter 6.
NOTICE
OAEPH049125L

Driving style
The driving style is displayed when
you are driving in ECO mode.
When you drive in SPORT mode,
each driving category will be dis-
played with "--".
Energy flow
The hybrid system informs the driv-
ers its energy flow in various operat-
ing modes. While driving, the current
energy flow is specified in 11 modes.
For more information, refer to HEV
Energy Flow in the "Hybrid System
Overview" provided in front of the
owner's manual.
Engine coolant temperature
This gauge indicates the tempera-
ture of the engine coolant when the
engine is running.
When the gauge indicator gets out
of the normal range, toward the
"Red" position, it indicates over-
heating of the engine. It may dam-
age the engine.
Do not continue driving with the
overheated engine. For further
information, refer to "If the Engine
Overheats" in the chapter 6.
NOTICE
OAEPH049537LOAEPHQ049851LOAEPH049125L
Convenient features of your vehicle
3-118

3-164
Convenient features of your vehicle
To prevent damage to the Power
Outlets :
Use the power outlet only when
the vehicle is in the ready ( )
mode and remove the accessory
plug after use. Using the acces-
sory plug for prolonged periods
of time with the vehicle off could
cause the battery to discharge.
Only use 12V electric acces-
sories which are less than 180 W
(Watts) 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.
(Continued)(Continued)
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 elec-
tronic 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 and the
fuse may open.
Plug in battery equipped electri-
cal/electronic devices with
reverse current protection. The
current from the battery may
flow into the vehicle’s electri-
cal/electronic system and cause
system malfunction.
Wireless Cellular Phone
Charging System (if equipped)
There is a wireless cellular phone
charger inside the front console.
The system is available when all
doors are closed, and when the
Engine Start/Stop button is in the
ACC/ON/START position.
NOTICE
OAEPH048444

5-15
Driving your vehicle
5
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 exces-
sively.
When the clutch temperatures are
too high, the "Transmission temp is
high! Stop safely" warning mes-
sage will appear on the LCD dis-
play, a chime will sound, and the
transmission shifting 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),
and allow the transmission to cool.
If you ignore this warning, the driv-
ing condition may become worse.
You may experience abrupt shifts,
frequent shifts, or jerkiness.
When the message "Trans cooled.
Resume driving." appears you can
continue to drive your vehicle.
When possible, drive the vehicle
smoothly.
Transmission Overheated
If the vehicle continues to be driv-
en and the clutch temperatures
reach the maximum temperature
limit, the "Transmission Hot! Park
with engine on" warning will be dis-
played. When this occurs the clutch
is disabled until the clutch cools to
normal temperatures.
OJS058139L
OAEPH059616L/OAEPH059617L
OAD058177N

5-19
Driving your vehicle
5
Shift-lock release
If the shift lever cannot be moved from
the P (Park) position into R (Reverse)
position with the brake pedal
depressed, continue depressing the
brake, and then do the following:
1. Place the Engine Start/Stop but-
ton in the OFF position.
2. Apply the parking brake.
3. Carefully remove the cap (1) cov-
ering the shift-lock release access
hole.
4. Insert a tool (e.g. flathead screw-
driver) into the access hole and
press down on the tool.5. Move the shift lever.
6. Remove the tool from the shift-
lock override access hole then
install the cap.
If you need to use the shift-lock
release, have your vehicle inspected
by an authorized HYUNDAI dealer
immediately.
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 Engine Start/Stop but-
ton in the OFF position. Take the key
with you when exiting the vehicle.
OAEPH059011L
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

5-20
Driving your 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) while
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) while the vehicle
is moving 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. Depressing both accelerator and
brake pedals at the same time can
trigger logic for engine power
reduction to assure vehicle decel-
eration. Vehicle acceleration will
resume after the brake pedal is
released.
When driving in Manual Shift
Mode, slow down before shifting to
a lower gear. Otherwise, the lower
gear may not be engaged if the
engine rpms are outside of the
allowable range.
Always apply the parking brake
when leaving the vehicle. Do not
depend on placing the transmis-
sion in P (Park) to keep the vehicle
from moving.
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. Optimum vehicle performance and
economy is obtained by smoothly
depressing and releasing the
accelerator.

5-29
Driving your vehicle
5
Do not apply the accelerator
pedal while the parking brake is
engaged. If you depress the
accelerator pedal with the park-
ing brake engaged, warning will
sound. Damage to the parking
brake may occur.
Driving with the parking brake
on can overheat the braking sys-
tem and cause premature wear
or damage to brake parts. Make
sure the parking brake is
released and the Brake Warning
Light is off before driving.Check the Parking
Brake Warning Light
by placing the Engine
Start/Stop button to
the ON position (vehi-
cle not in the ready
( ) mode).
This light will be illuminated when the
parking brake is applied with the
Engine Start/Stop button in the
START or ON position.
Before driving, be sure the parking
brake is released and the Brake
Warning Light is OFF.
If the Parking Brake Warning Light
remains on after the parking brake is
released while the vehicle is in the
ready ( ) mode, there may be a
malfunction in the brake system.
Immediate attention is necessary.
If at all possible, cease driving the
vehicle immediately. If that is not pos-
sible, use extreme caution while
operating the vehicle and only con-
tinue to drive the vehicle until you
can reach a safe location.
Electronic Parking Brake
(EPB) (if equipped)
Applying the parking brake
To apply EPB (Electronic Parking
Brake):
1. Depress the brake pedal.
2. Pull up the EPB switch.
Make sure the Parking Brake Warning
Light ( ) comes on.
NOTICE
OAEPH058594