2018 Hyundai Ioniq Plug-in Hybrid cooling

H39
Switching to Hybrid mode toallow 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
heating 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 tocontinue 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 [EV/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.
OAEPH047207LOAEPH047527LOAEPH047203L/OAEPH047204L

H48
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Information
Gradual capacity reduction of the
high voltage battery.
The high voltage Battery capacity
gradually reduces with time and use.
This is natural characteristic of the
high voltage batteries. The extent at
which capacity is reduced changes
drastically depending on the environ-
ment(ambient temperature, etc.) and
usage conditions such as how the vehi-
cle is driven and how the high voltage
battery is charged. Reduction of the
high voltage battery capacity is not
covered under warranty.
Safety Plug High Voltage Battery Cooling
Duct
The high-voltage battery cooling duct
is located on the left side of the rear
seats.
i
Never touch the safety plug. The
safety plug is attached to high
voltage hybrid battery system.
Touching the safety plug will
result in death or serious injury.
Service personnel should follow
procedures in service manual.
DANGER
OAEQ046018
OAE036024
■ Hybrid vehicle
OAEPH036024
(Continued)
Do not drop water or liquid on
to HPCU, HSG, motor and
fuses. The hybrid system com-
ponents are covered. If you
drop water or liquid on to
hybrid system compone nts, it
may result in electric shock.
■ Plug-in hybrid vehicle

H49
The cooling duct cools down the
high-voltage battery. When the high-
voltage battery cooling duct is
blocked, the high-voltage battery
may be overheated and the vehicle
performance may become limited
and set a hybrid warning lamp. Do
not obstruct the cooling duct with any
other objects.
Information
Clean the cooling duct for the hybrid
battery with a dry cloth on a regular
basis.
i
(Continued)
Do not put any objects into
the cooling duct of the hybrid
battery. Doing so may cause
loss of cooling duct volume to
the hybrid battery. When the
cooling duct is blocked with
any objects, immediately con-
tact your HYUNDAI dealer.
Never place a container of liq-
uid on or near the cooling
duct. If the liquid spills, the
hybrid battery located in the
luggage compartment may be
damaged.
Secure all loads in the luggage
compartment to prevent them
from being tossed about
before driving. If a sharp or
heavy load impacts or pierces
the interior luggage compart-
ment wall, the hybrid battery
system may be damaged, dete-
riorating its performance.
Never clean the cooling duct
of the hybrid battery with a
wet cloth. If any water enters
in the cooling duct of the
hybrid battery, the hybrid bat-
tery may cause an electric
shock, serious damage, injury
or death.
The hybrid battery is com-
posed of lithium-ion polymer.
If the hybrid battery is improp-
erly handled, it is dangerous
to the environment. Also it
may cause electrical shock
and severe burns, resulting in
serious injury or death.
Do not spill liquid over the
cooling duct of the hybrid bat-
tery. Doing so is very danger-
ous. It may cause electric
shock or serious injury.
Do not cover the cooling duct
with objects.(Continued)
WARNING

I-3
Automatic ventilation ...................................................3-145
Autonomous Emergency Braking (AEB) system...........5-43
AUX, USB and iPod
®Port ...............................................4-2
Batterty (12 volt, Plug-in hybrid vehicle).......................7-31
Battery cooling duct........................................................2-22
Battery saver function ...................................................3-118
Before driving ...................................................................5-4
Blind Spot Detection (BSD) system ...............................5-34
Blind spot mirror.............................................................3-34
Blue Link
®center ...........................................................3-19
Bluetooth®Wireless Technology hands-free ....................4-4
Bottle holder .................................................................3-148
Brake fluid ......................................................................7-\
22
Brake system ...................................................................5-23 Anti-lock Brake System (ABS)..................................5-26
Disc brakes wear indicator .........................................5-24
Electronic Stability Control (ESC).............................5-28
Good braking practices ..............................................5-33
Hill-start Assist Control (HAC) .................................5-33
Parking brake..............................................................5-24
Power brakes ..............................................................5-23
Vehicle Stability Management (VSM) .......................5-31 Bulb replacement ............................................................7-55
Daytime Running Lamp (DRL) .................................7-60
Front parking lamp .....................................................7-55
Front turn signal lamp ................................................7-55
Headlamp....................................................................7-55\
High mounted stop lamp ............................................7-64
Interior light bulb .......................................................7-65
License plate light bulb ..............................................7-65
Rear combination light bulb .......................................7-61
Side marker ................................................................7-55
Side repeater lamp ......................................................7-61
Bulb wattage .....................................................................8-3\
Button start/stop, see engine start/stop button ..................5-6
Camera (Rear view) ......................................................3-125
Capacities (Lubricants) .....................................................8-7
Care Exterior care ...............................................................7-67
Interior care ................................................................7-71
Tire care ......................................................................7-\
34
Cargo security screen ....................................................3-154
Center console storage ..................................................3-146
Central door lock switch .................................................3-11
Certification label location ...............................................8-9
Chains Tire chains ..................................................................5-89
Checking tire inflation pressure ......................................7-36
I
Index
B
C

I-4
Child restraint system (CRS) ..........................................2-36Booster seats...............................................................2-39
Forward-facing child restraint system........................2-39
Installing a child restraint system (CRS) ...................2-39
Lower anchors and tether for children (LATCH system) .....................................................2-40
Rearward-facing child restraint system......................2-38
Securing a child restraint system seat with "Tether Anchor" system ..........................................3-43
Securing a child restraint system with a lap/shoulder belt ......................................................3-44
Securing a child restraint system withthe LATCH anchors system ........................................................2-42
Selecting a child restraint system (CRS) ...................2-37
Child-protector rear door lock ........................................3-12
Climate control air filter .................................................7-26
Clock ........................................................................\
.....3-152
Clothes hanger ..............................................................3-153
Coasting guide ................................................................5-22
Combined instrument, see instrument cluster ................3-54
Compact spare tire replacement .....................................7-39
Consumer information ....................................................8-11
Convertible locking retractor ..........................................2-27
Coolant ........................................................................\
....7-18
Cooling fluid, see engine coolant/inverter coolant .........7-18
Crankcase emission control system ................................7-74
Cruise control system .....................................................5-64
Cup holder.....................................................................3-1\
48
Curtain air bags ...............................................................2-51 Dashboard illumination, see instrument panel
illumination..................................................................3-56
Dashboard, see instrument cluster ..................................3-54
Day/night rearview mirror ..............................................3-19
Daytime running light (DRL) .......................................3-115
Defogging (Windshield) ...............................................3-141
Defroster Rear window defroster .............................................3-142
Defrosting (Windshield) ...............................................3-141
Dimensions .......................................................................8\
-2
Display illumination, see instrument panel illumination..................................................................3-56
Displays, see instrument cluster .....................................3-54
Door locks ........................................................................\
.3-9 Auto door lock/unlock features ..................................3-12
Central door lock switch ............................................3-11
Child-protector rear door lock....................................3-12
Drinks holders, see cup holders ....................................3-148
Driver position memory system .....................................3-14 Easy access function ..................................................3-15
Recalling positions from memory .............................3-15
Storing positions into memory ...................................3-14
Driver's air bag................................................................2-49
Driver's knee airbag ........................................................2-49
Driving at night ...............................................................5-87
Driving in flooded areas .................................................5-88
Driving in the rain...........................................................5-87
Index
D

I-12
Safety messages ................................................................F-6
Scheduled maintenance services.......................................7-8
Seat belt warning lightDriver's seat ................................................................2-24
Front passenger's seat .................................................2-25
Seat belts ........................................................................\
.2-23 Additional seat belt safety precautions ......................2-32
Care of seat belts ........................................................2-35
Convertible locking retractor .....................................2-27
Do not lie down ..........................................................2-34
Emergency locking retractor ......................................2-26
Height adjustment ......................................................2-27
Keep belts clean and dry ............................................2-35
Lap/shoulder belt ........................................................2-25
One person per belt ....................................................2-34
Periodic inspection .....................................................2-35
Pre-tensioner seat belt ................................................2-29
Rear center seatbelt ....................................................2-31
Seat belt restraint system............................................2-25
Seat belt safety precautions ........................................2-23
Seat belt use and children...........................................2-3\
3
Seat belt use during pregnancy ..................................2-32
Seat belt warning light ...............................................2-24
Transporting an injured person ..................................2-34
When to replace seat belts..........................................2-35 Seat warmers
Front ........................................................................\
...2-20
Rear ........................................................................\
....2-21
Seats ........................................................................\
..........2-4 Battery cooling duct ...................................................2-22
Front seat adjustment ...................................................2-6
Front seat warmers .....................................................2-20
Head restraints ............................................................2-16
Rear seat adjustment ..................................................2-12
Rear seat warmers ......................................................2-21
Safety precautions ........................................................2-5
Shift lever auto door lock ...............................................3-12
Shift lock system.............................................................5-18
Side air bags....................................................................2-50\
Side view mirrors............................................................3-33 Blind spot mirror ........................................................3-34
Smart cruise control system............................................5-69
Smart key ........................................................................\
..3-3 Battery replacement......................................................3-7
Liftgate unlocking ........................................................3-5
Locking........................................................................\
.3-3
Mechanical key ............................................................3-6
Panic button ..................................................................3-5
Unlocking .....................................................................3-4\
Smooth cornering............................................................5-87
Snow tires .......................................................................5\
-89
Index
S