coolant temperature Hyundai Ioniq Plug-in Hybrid 2020 Owner's Manual

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.
i

3-93
Convenient features of your vehicle
3
Switching to Hybrid mode to
allow heating or air condition-
ing (Plug-in hybrid vehicle)
This message is displayed when the
vehicle automatically switches to
HEV mode to allow heating or air
conditioning. It is when the coolant
temperature is low (below 7 °F (-14
°C)) and the driver turns on the heat-
ing or cooling system.
If the coolant temperature gets high-
er than 7 °F (-14 °C) or the driver
turns off the heating or cooling sys-
tem the vehicle returns to its default
(EV) mode.
Maintaining Hybrid mode to
continue heating or air condi-
tioning (Plug-in hybrid vehicle)
This message is displayed when the
vehicle maintains the HEV mode to
allow heating or air conditioning. The
mode does not change when the
driver presses the [HEV] button to
switch from the HEV mode to EV
mode while the heating and cooling
system is on and the coolant temper-
ature is below 7 °F (-14 °C).
Low/High System Temp.
Maintaining Hybrid mode
(Plug-in hybrid vehicle)
This message is displayed when the
temperature of the high-voltage
(hybrid) battery is too low or too high.
This warning message is to protect
the battery and the hybrid system.
OAEPHQ049841LOAEPHQ049842LOAEPHQ049834L/OAEPHQ049835L

3-97
Convenient features of your vehicle
3
LCD display modes
The information provided may differ depending on which functions are applicable to your vehicle.
Range
(Plug-in hybrid vehicle)
Route GuidanceSmart Cruise ControlDriver Assistance
The Master Warning
mode displays warn-
ing messages related
to the vehicle when
one or more systems
is not operating nor-
mally.
Fuel Economy
Accumulated InfoDestination InfoLane Keeping AssistDoor
Drive InfoLane Following AssistLights
Driving styleHighway Driving
AssistSound
Energy flowDriver Attention
WarningConvenience
Engine coolant
temperatureService Interval
Tire PressureOther Features
Language
Reset
Menu
Trip Computer TBT Driving Assist User Settings Master warning
Up/Down

3-109
Convenient features of your vehicle
3
The trip computer is a microcomput-
er-controlled driver information sys-
tem that displays information related
to driving.
Information
Some driving information stored in the
trip computer (for example Average
Vehicle Speed) resets if the battery is
disconnected.
Trip modes
To change the trip mode, toggle the
" , " switch on the steering wheel.
i
T TR
RI
IP
P
C
CO
OM
MP
PU
UT
TE
ER
R
(
(H
HY
YB
BR
RI
ID
D
V
VE
EH
HI
IC
CL
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)
OAE046402 ■ ■ ■ ■
T T T T
y y y y
p p p p
e e e e

A A A A
■ ■ ■ ■
T T T T
y y y y
p p p p
e e e e

B B B B
■ ■ ■ ■
T T T T
y y y y
p p p p
e e e e

C C C C
*1 : Type A cluster

Fuel Economy

Accumulated Info

Fuel Economy

Drive Info

Fuel Economy
Digital Speedometer *1
Driving Style
Energy Flow
↕ ↕
↕ ↕
↕ ↕
↕ ↕
↕ ↕
Engine Coolant Temperature
↕
↕

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

3-114
Convenient features of your vehicle
The trip computer is a microcomput-
er-controlled driver information sys-
tem that displays information related
to driving.
Information
Some driving information stored in the
trip computer (for example Average
Vehicle Speed) resets if the battery is
disconnected.
Trip modes
To change the trip mode, toggle the
" , " switch on the steering wheel.
i
T TR
RI
IP
P
C
CO
OM
MP
PU
UT
TE
ER
R
(
(P
PL
LU
UG
G-
-I
IN
N
H
HY
YB
BR
RI
ID
D
V
VE
EH
HI
IC
CL
LE
E)
)
*1 : Type A cluster

Fuel Economy

Accumulated Info

Fuel Economy

Drive Info

Fuel EconomyRange
Digital Speedometer *1
Driving Style
Energy Flow
↕ ↕ ↕ ↕
↕ ↕
↕ ↕
↕ ↕
↕ ↕
Engine Coolant Temperature
Electric/Gasoline
↕
↕
OAE046402 ■ ■ ■ ■
T T T T
y y y y
p p p p
e e e e

A A A A
■ ■ ■ ■
T T T T
y y y y
p p p p
e e e e

B B B B
■ ■ ■ ■
T T T T
y y y y
p p p p
e e e e

C C C C

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

5-163
Driving your vehicle
5
- When using tire chains:
Wrong size chains or improperly
installed chains can damage
your vehicle's brake lines, sus-
pension, body and wheels.
Use SAE "S" class or wire
chains.
If you hear noise caused by
chains contacting the body,
retighten the chain to prevent
contact with the vehicle body.
To prevent body damage,
retighten the chains after driving
0.3~0.6 miles (0.5~1.0 km).
Do not use tire chains on vehi-
cles equipped with aluminum
wheels. If unavoidable, use a
wire type chain.
Use wire chains less than 0.47
inch (12 mm) wide to prevent
damage to the chain's connec-
tion.
Winter Precautions
Use high quality ethylene glycol
coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in chapter 7. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Change to "winter weight" oil if
necessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 8 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
HYUNDAI dealer.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 7. The level of charge in
your battery can be checked by an
authorized HYUNDAI dealer or a
service station.
NOTICE

6-12
What to do in an emergency
If your engine coolant temperature
gauge indicates overheating, you
experience a loss of power, or hear
loud pinging or knocking, the engine
may be overheating. If this happens,
you should:
1. Turn ON the hazard warning flash-
er, 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 brake.
3. 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 authorized
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, while 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 authorized
HYUNDAI dealer.
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The electric motor for
the cooling fan may
continue to operate
or start up when the
engine is not running
and can cause serious injury.
Keep hands, clothing and tools
away from the rotating fan
blades of the cooling fan.
WARNING