2020 Hyundai Ioniq Plug-in Hybrid 12 volt battery

3-107
Convenient features of your vehicle
3
ItemsExplanation
AUX. BATTERY SAVER+
To activate or deactivate the Aux. Battery Saver+ function.
When activated, the high voltage battery is used to keep the 12V battery charged.
For more details, refer to the ''Hybrid System Overview'' provided in the front of the
owner's manual.
Fuel Economy Auto Reset
The average fuel economy will not reset automatically whenever refueling.
When the engine has been OFF for 4 hours or longer the average fuel economy
will reset automatically.
The average fuel economy will reset automatically after adding 1.6 gallons (6
liters) of fuel or more and after driving speed exceeds 1 mph (1 km/h).
For more details, refer to "Trip Computer" in this chapter.
Fuel Economy UnitTo select the fuel economy unit.
(US gallon, UK gallon)
Temperature UnitTo select the temperature unit.
(°C,°F)
Tire Pressure UnitTo select the tire pressure unit.
(psi, kPa, bar)
7. Other (features)
❈ ❈

The information provided may differ depending on which functions are applicable to your vehicle.

3-115
Convenient features of your vehicle
3
Range
The range is the estimated distance
the vehicle can be driven with the
remaining fuel in the fuel tank
(Gasoline/Petrol) and high-voltage
(hybrid) battery (Electric).
If the estimated distance is below 1
mile (1 km), the trip computer will
display "---" as the range.
Information
• If the vehicle is not on level ground
or the battery power has been inter-
rupted, the range function may not
operate correctly.
• The range may differ from the actu-
al driving distance as it is an esti-
mate of the available driving dis-
tance.
• The trip computer may not register
additional fuel if less than 2 gallon (6
liters) of fuel are added to the vehicle.
• The range may vary significantly
based on driving conditions, driving
habits, and condition of the vehicle.
Fuel economy
Average Fuel Economy (1)
The average fuel economy is calcu-
lated by the total driving distance
and fuel consumption since the last
average fuel economy reset.
The average fuel economy can be
reset both manually and automati-
cally.
Manual reset
To clear the average fuel economy
manually, press the [OK] button on
the steering wheel for more than 1
second when the average fuel econo-
my is displayed.
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OAEPH049534ROIK047124N

5-41
Driving your vehicle
5
Information
When you jump start your vehicle
because of a drained battery, the ABS
warning light ( ) may turn on at the
same time. This happens because of
the low battery voltage. It does not
mean your ABS is malfunctioning.
Have the battery recharged before
driving the vehicle.
Electronic Stability Control
(ESC)
The Electronic Stability Control
(ESC) system helps to stabilize the
vehicle during cornering maneuvers.
ESC checks where you are steering
and where the vehicle is actually
going. ESC applies braking pressure
to any one of the vehicle's brakes
and intervenes in the engine man-
agement system to assist the driver
with keeping the vehicle on the
intended path. It is not a substitute
for safe driving practices. Always
adjust your speed and driving to the
road conditions.
i
When you drive on a road hav-
ing poor traction, such as an icy
road, and apply your brakes
continuously, the ABS will be
active continuously and the
ABS warning light ( ) may
illuminate. Pull your car over to
a safe place and turn the vehicle
off.
Restart the vehicle. If the ABS
warning light is off, then your
ABS system is normal.
Otherwise, you may have a
problem with your ABS system.
Contact an authorized HYUNDAI
dealer as soon as possible.
CAUTION
If the ABS warning light ( ) is
on and stays on, you may have
a problem with the ABS. Your
power brakes will work normal-
ly. To reduce the risk of serious
injury or death, contact your
HYUNDAI dealer as soon as
possible.
WARNING
OAEPH059016L

What to do in an emergency
6
Hazard Warning Flasher .......................................6-2
In Case of an Emergency While Driving.............6-2
If the Engine Stalls While Driving .................................6-2
If the Vehicle Stalls at a Crossroad or Crossing .......6-2
If You Have a Flat Tire While Driving ..........................6-3
If the Vehicle will not Start ..................................6-3
If the 12 Volt Battery is Discharged
(Hybrid Vehicle) .....................................................6-5
Before Jump Starting .......................................................6-5
Jump Starting......................................................................6-6
If the 12 Volt Battery is Discharged
(Plug-In Hybrid Vehicle) .......................................6-9
Jump Starting......................................................................6-9
If the Engine Overheats......................................6-12
Tire Pressure Monitoring System (TPMS).......6-14
Check Tire Pressure .......................................................6-14
Tire Pressure Monitoring System ...............................6-15
Low Tire Pressure Telltale ............................................6-16
Low Tire Pressure LCD Display with
Position Indicator ............................................................6-16
TPMS Malfunction Indicator ........................................6-17
Changing a Tire with TPMS..........................................6-18
If You Have a Flat Tire........................................6-20
With Spare Tire................................................................6-20
With Tire Mobility Kit (TMK) - Type A ......................6-25
With Tire Mobility Kit (TMK) - Type B ......................6-33
Towing ...................................................................6-40
Towing Service .................................................................6-40
Removable Towing Hook ...............................................6-41
Emergency Towing..........................................................6-42
If an Accident Occurs..........................................6-44

6-3
What to do in an emergency
If You Have a Flat Tire While
Driving
If a tire goes flat while you are driving:
Take your foot off the accelerator
pedal and let the vehicle slow
down while driving straight ahead.
Do not apply the brakes immedi-
ately or attempt to pull off the road
as this may cause loss of vehicle
control resulting in an accident.
When the vehicle has slowed to
such a speed that it is safe to do
so, brake carefully and pull off the
road. Drive off the road as far as
possible and park on firm, level
ground. If you are on a divided
highway, do not park in the median
area between the two traffic lanes.
When the vehicle is stopped, press
the hazard warning flasher button,
move the shift lever into P (Park),
and apply the parking brake, and
place the Engine Start/Stop button
in the OFF position.
Have all passengers get out of the
vehicle. Be sure they all get out on
the side of the vehicle that is away
from traffic.
When changing a flat tire, follow
the instructions provided later in
this chapter.
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.Push or pull starting the vehicle
may cause the catalytic converter
to overload which can lead to
damage to the emission control
system.
Check the fuel level and add fuel if
necessary.
If the vehicle still does not start, have
your vehicle checked by an author-
ized HYUNDAI dealer.
NOTICE
6
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6-5
What to do in an emergency
6
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 the vehicle (
indicator on), operate the vehicle
safely outdoors in ready mode
stopped and/or drive it for 30 min-
utes total to charge the 12V bat-
tery 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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OAEPH049037L

6-8
What to do in an emergency
If your vehicle will not start after a
few attempts, it probably requires
servicing. In this event please seek
qualified assistance. If the cause of
your battery discharging is not
apparent, have your vehicle checked
by an authorized HYUNDAI dealer.
Disconnect the jumper cables in the
exact reverse order you connected
them:
1. Disconnect the jumper cable from
the black, negative (-) chassis
ground of your vehicle (4).
2. Disconnect the other end of the
jumper cable from the black, neg-
ative (-) battery/chassis ground of
the assisting vehicle (3).
3. Disconnect the second jumper
cable from the red, positive (+)
battery/jumper terminal of the
assisting vehicle (2).
4. Disconnect the other end of the
jumper cable from the red, positive
(+) jumper terminal of your vehicle
(1).
Information
The voltage range of the charger
should be 13.3~14V and its current
range should be less than 60A. (13.8V
is recommended).
Information
An inappropriately disposed
battery can be harmful to the
environment and human
health. Dispose of the battery
according to your local law(s)
or regulations.
To prevent damage to your vehi-
cle:
• Only use a 12-volt power supply
(battery or jumper system) to
jump start your vehicle.
Do not attempt to jump start
your vehicle by push-starting.
NOTICE
ii
Pb
The use of an improper charg-
er with a voltage and current
range higher than specified
may cause overheating and
damage to the 12V battery.
The use of an incorrect charg-
er will lead to a power shut-off
to save the 12V battery. Stop
using the incorrect charger
once the power of the vehicle
is shut off.
CAUTION

6-10
Information
An inappropriately disposed
battery can be harmful to the
environment and human
health. Dispose of the battery
according to your local law(s)
or regulations.
To prevent damage to your vehicle:
Only use a 12-volt power supply
(battery or jumper system) to
jump start your vehicle.
Do not attempt to jump start
your vehicle by push-starting.
Jump starting procedure
1. Position the vehicles close enough
that the jumper cables will reach,
but do not allow the vehicles to
touch.
2. Avoid fans or any moving parts in
the engine compartment at all
times, even when the vehicles are
turned off.
3. Turn off all electrical devices such
as radios, lights, air conditioning,
etc. Put the vehicles in P (Park)
and set the parking brake. Turn
both vehicles OFF.
Information
Your vehicle has a battery in the lug-
gage compartment, but when you
jump start your vehicle, use the
jumper terminal in the engine com-
partment.
i
NOTICE
i
What to do in an emergency
(Continued)
NEVER attempt to recharge
the battery when the vehicle's
battery cables are connected
to the battery.
The electrical ignition system
works with high voltage.
NEVER touch these compo-
nents with the engine running
or when the Engine Start/Stop
button is in the ON position.