2018 Hyundai Ioniq Hybrid 12v battery

H29
What Does Regenerative
Braking Do?
It uses an electric motor when decel-
erating and when braking and trans-
forms kinetic energy to electrical
energy in order to charge the high
voltage battery.
Battery
• Hybrid
- The vehicle is composed of a
high voltage battery that drives
the motor and air conditioner, and
an integrated 12V lithium ion
polymer battery with the HEV
battery that drives the lamps,
wipers, and audio system.
- The integrated 12V battery is auto-
matically charged when the vehicle
is in the ready ( ) mode.
• Plug-in hybrid vehicle
- The vehicle is composed of a
highvoltage battery that drives
the motor and air-conditioner,
and an auxiliary battery (12 V)
that drives the lamps, wipers, and
audio system.
- The auxiliary battery is automati-
cally charged when the vehicle is
in the ready ( ) mode.
Hybrid System Gauge
The hybrid system gauge indicates
whether the current driving condition
is fuel efficient or not.
• CHARGE :
Shows that the energy made by
the vehicle is being converted
to electrical energy. (Regenerated
energy)
• ECO :
Shows that the vehicle is being
driven in an Eco-friendly manner.
• POWER :
Shows that the vehicle is exceeding
the Eco-friendly range.According to the hybrid system
gauge area, the "EV" indicator comes
on or off.
- "EV" indicator ON : Vehicle is driven
using the electric motor or the
gasoline engine is stopped.
- "EV" indicator OFF : Vehicle is driv-
en using the gasoline engine.
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1-4
Your vehicle at a glance
INTERIOR OVERVIEW (I) - HYBRID VEHICLE
1. Door lock/unlock button ....................3-14
2. Driver position memory system ........3-18
3. Outside rearview mirror folding
switch ................................................3-26
4. Outside rearview mirror control
switch ................................................3-25
5. Central door lock switch ....................3-14
6. Power window switches ....................3-27
7. Power window lock switch ................3-31
8. Headlamp leveling device................3-112
9. Instrument panel illumination
control switch ......................................3-47
10. Blind spot detection system button ..5-40
11. Lane keeping assist system ..............5-62
12. ESC OFF button ..............................5-33
13. Fuel filler door opener ....................3-39
14. 12V battery reset switch ..................6-5
15. Hood release lever ........................3-36
16. Fuse box ..........................................7-54
17. Steering wheel tilt/telescopic lever ....3-21
18. Steering wheel ................................3-20
19. Seat ..................................................2-4
OAEPH017007LThe actual shape may differ from the illustration.
■Left-hand drive

1-5
Your vehicle at a glance
INTERIOR OVERVIEW (II) - HYBRID VEHICLE
1
1. Door lock/unlock button ....................3-14
2. Driver position memory system ........3-18
3. Outside rearview mirror folding
switch ................................................3-26
4. Outside rearview mirror control
switch ................................................3-25
5. Central door lock switch ....................3-14
6. Power window switches ....................3-27
7. Power window lock switch ................3-31
8. Headlamp leveling device................3-112
9. Instrument panel illumination
control switch ......................................3-47
10. Blind spot detection system button ..5-40
11. Lane keeping assist system ..............5-62
12. ESC OFF button ..............................5-33
13. Fuel filler door opener ....................3-39
14. 12V battery reset switch ....................6-5
15. Hood release lever ..........................3-36
16. Fuse box ..........................................7-54
17. Steering wheel ................................3-20
18. Seat ..................................................2-4
OAEPH017008L
■ Right-hand drive
The actual shape may differ from the illustration.

3-88
Convenient features of your vehicle
6. Service Interval
• Service Interval
To activate or deactivate the service
interval function.
• Adjust Interval
If the service interval menu is acti-
vated, you may adjust the time and
distance.
Information
To use the service interval menu, con-
sult an authorized HYUNDAI dealer.
If the service interval is activated and
the time and distance is adjusted,
messages are displayed in the fol-
lowing situations each time the vehi-
cle is turned on.
- Service in
: Displayed to inform the driver the
remaining mileage and days to
service.
- Service required
: Displayed when the mileage and
days to service has been reached
or passed.
Information
If any of the following conditions
occur, the mileage and number of days
to service may be incorrect.
- The battery cable is disconnected.
- The fuse switch is turned off.
- The battery is discharged.
7. Other Features
• Aux. Battery Saver+
To activate or deactivate the Aux.
Battery Saver+ function.
When activated, the high voltage bat-
tery is used to keep the 12V battery
charged.
For more information, refer to the
“Hybrid System Overview” provid-
ed in the front of the owner’s man-
ual.
• Fuel Economy Auto Reset
- Off: The average fuel economy will
not reset automatically whenever
refueling.
- After Ignition: When the engine has
been OFF for 4 hours or longer the
average fuel economy will reset
automatically.- After Refueling: The average fuel
economy will reset automatically
after adding 6 liters (1.6 gallons) of
fuel or more and after driving speed
exceeds 1 km/h (1 mph).
For more information, refer to
"Trip Computer" in this chapter.
• Fuel Economy Unit
To select the fuel economy unit.
(km/L, L/100, MPG)
• Temperature Unit
To select the temperature unit.
(°C,°F)
• Tire Pressure Unit
To select the tire pressure unit.
(psi, kPa, bar)
• Language
To select language.
8. Reset
You can reset the menus in the User
Settings Mode. All menus in the User
Settings Mode are reset to factory
settings, except language and serv-
ice interval.
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3-95
Convenient features of your vehicle
3
If the service interval is activated and
the time and distance is adjusted,
messages are displayed in the fol-
lowing situations each time the vehi-
cle is turned on.
- Service in
: Displayed to inform the driver the
remaining mileage and days to
service.
- Service required
: Displayed when the mileage and
days to service has been reached
or passed.
Information
If any of the following conditions
occur, the mileage and number of days
to service may be incorrect.
- The battery cable is disconnected.
- The fuse switch is turned off.
- The battery is discharged.7. Other Features
• Aux. Battery Saver+
To activate or deactivate the Aux.
Battery Saver+ function.
When activated, the high voltage bat-
tery is used to keep the 12V battery
charged.
For more information, refer to the
“Hybrid System Overview” provided
in the front of the owner’s manual.
• Fuel Economy Auto Reset
- Off: The average fuel economy will
not reset automatically whenever
refueling.
- After Ignition: When the engine has
been OFF for 4 hours or longer the
average fuel economy will reset
automatically.
- After Refueling: The average fuel
economy will reset automatically
after adding 6 liters (1.6 gallons) of
fuel or more and after driving speed
exceeds 1 km/h (1 mph).
For more information, refer to
"Trip Computer" in this chapter.• Fuel Economy Unit
To select the fuel economy unit.
(km/L, L/100, MPG)
• Temperature Unit
To select the temperature unit.
(°C,°F)
• Tire Pressure Unit
To select the tire pressure unit.
(psi, kPa, bar)
• Language
To select language.
8. Reset
You can reset the menus in the User
Settings Mode. All menus in the User
Settings Mode are reset to factory
settings, except language and serv-
ice interval.
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Convenient features of your vehicle
3
Power outlet (if equipped)
The power outlet is designed to pro-
vide power for mobile telephones or
other devices designed to operate
with vehicle electrical systems. The
devices should draw less than 180
W(Watts) with the engine running.To prevent damage to the Power
Outlets :
• Use the power outlet only when
the engine is running and remove
the accessory plug after use.
Using the accessory plug for pro-
longed periods of time with the
engine off could cause the battery
to discharge.
• Only use 12V electric accessories
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.
• 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.
NOTICE
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Avoid electrical shocks. Do not
place your fingers or foreign
objects (pin, etc.) into a power
outlet or touch the power outlet
with a wet hand.
WARNING

6-4
IF THE ENGINE WILL NOT START
What to do in an emergency
Hybrid vehicle
• Be sure the shift lever is in P
(Park). The vehicle starts only
when the shift lever is in P (Park).
• This vehicle does not have a regu-
lar 12V battery that needs periodic
replacement. It is lithium ion poly-
mer type integrated into the HEV
high voltage battery. The vehicle
has a 12V battery protection sys-
tem that cuts 12V battery from
vehicle draw to prevent full dis-
charge. If vehicle will not start, first
try pressing the 12V Battery Reset
switch (left side of the steering
wheel near the fuel door open
switch) to reconnect the 12V bat-
tery, but you must start vehicle
within 15 seconds of pressing the
12V Battery Reset switch. After
starting vehicle, operate the vehi-
cle safely outdoors in ready mode
stopped and/or drive it for 30 min-
utes total to charge the 12V battery
fully.• Check the fuel level and add fuel if
necessary.
If the vehicle still does not start, we
recommend that you call an author-
ized HYUNDAI dealer for assistance.
Plug-in hybrid vehicle
• Be sure the shift lever is in P
(Park). The vehicle starts only
when the shift lever is in P (Park).
• Check the battery connections to
be sure they are clean and tight.
• Turn on the interior light. If the light
dims or goes out when you operate
the starter, the battery is drained.
Do not push or pull the vehicle to
start it. This could cause damage to
your vehicle.See instructions for
"Jump Starting" provided in this
chapter.
• Check the fuel level and add fuel if
necessary.
If the vehicle still does not start, we
recommend that you call an author-
ized HYUNDAI dealer for assistance.Push or pull starting the vehicle
may cause the catalytic convert-
er to overload which can lead to
damage to the emission control
system.
CAUTION
Push or pull starting the vehicle
may cause the catalytic con-
verter to overload which can
lead to damage to the emission
control system.
CAUTION

6-5
What to do in an emergency
Before jump starting
This vehicle does not have a regular
12V battery that needs periodic
replacement. It is lithium ion polymer
type integrated into the HEV high
voltage battery. The vehicle has a
12V battery protection system that
cuts 12V battery from vehicle draw to
prevent full discharge.
Using the 12V battery reset
switch
1. Press the 12V Battery Reset
switch to reconnect the 12V bat-
tery.
2. Start the vehicle within 15 sec-
onds of pressing the 12V Battery
Reset switch.
3. After starting vehicle ( indica-
tor on), operate the vehicle safely
outdoors in ready mode stopped
and/or drive it for 30 minutes total
to charge the 12V battery fully.If you do not start the vehicle imme-
diately after pressing the 12V Battery
Reset switch, the power of 12V bat-
tery is automatically disconnected
after few seconds to save the 12V
battery from additional discharge. If
the 12V battery is disconnected prior
to starting the vehicle, press the 12V
Battery Reset switch again and then
immediately start the vehicle as
explained.
Repeated use of the 12V Battery
Reset switch without a sufficient
engine ON cycle (30 Min+) may
cause over discharge of the 12V bat-
tery, which will prevent the vehicle
from starting. If the 12V battery is
over discharged to a point that the
reset does not work, try to jump-start
the vehicle.
Information
After starting the vehicle ( indica-
tor on), the 12V battery is being
charged whether the engine is running
or not. Although there is no engine-
sound, it is unnecessary to depress the
accelerator pedal.
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IF THE 12 VOLT BATTERY IS DISCHARGED (HYBRID VEHICLE)
6
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