2018 Hyundai Ioniq Hybrid start stop button

7-38
Maintenance
BATTERY (12 VOLT, PLUG-IN HYBRID VEHICLE)
• When you do not use the vehicle
for a long time in a low tempera-
ture area, disconnect the battery
and keep it indoors.
• Always charge the battery fully
to prevent battery case damage
in low temperature areas.
NOTICE
To prevent SERIOUS INJURY or
DEATH to you or bystanders,
always follow these precautions
when working near or handling
the battery:
Always read and follow
instructions carefully
when handling a battery.
Wear eye protection
designed to protect the
eyes from acid splashes.
Keep all flames, sparks,
or smoking materials
away from the battery.
Hydrogen is always pres-
ent in battery cells, is
highly combustible, and
may explode if ignited.
Keep batteries out of
reach of children.
(Continued)
WARNING (Continued)
Batteries contain sulfu-
ric acid which is highly
corrosive. Do not allow
acid to contact your
eyes, skin or clothing.
If acid gets into your eyes, flush
your eyes with clean water for at
least 15 minutes and get imme-
diate medical attention. If acid
gets on your skin, thoroughly
wash the area. If you feel pain or
a burning sensation, get med-
ical attention immediately.
•When lifting a plastic-cased
battery, excessive pressure
on the case may cause battery
acid to leak. Lift with a battery
carrier or with your hands on
opposite corners.
•Do not attempt to jump start
your vehicle if your battery is
frozen.
(Continued)
(Continued)
•NEVER attempt to recharge
the battery when the vehicle’s
battery cables are connected
to the battery.
•The electrical ignition switch
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.

7-40
Maintenance
Battery capacity label
❈The actual battery label in the vehicle
may differ from the illustration.
1. AGM60L-DIN : The HYUNDAI
model name of battery
2. 12V : The nominal voltage
3. 60Ah(20HR) : The nominal capacity
(in Ampere hours)
4. 100RC : The nominal reserve
capacity (in min.)
5. 640CCA : The cold-test current in
amperes by SAE
6. 512A : The cold-test current in
amperes by EN
Battery recharging
By battery charger
Your vehicle has a maintenance-free,
calcium-based battery.
• If the battery becomes discharged
over a short time (because, for
example, the headlamps or interior
lights were left on while the vehicle
was not in use), recharge it by slow
charging (trickle) for 10 hours.
• If the battery gradually discharges
because of high electrical load
while the vehicle is being used,
recharge it at 20-30A for two hours.Always follow these instructions
when recharging your vehicle’s
battery to avoid the risk of SERI-
OUS INJURY or DEATH from
explosions or acid burns:
•Before performing mainte-
nance or recharging the bat-
tery, turn off all accessories
and place the Engine Start/
Stop button to the OFF posi-
tion.
•Keep all flames, sparks, or
smoking materials away from
the battery.
•Always work outdoors or in an
area with plenty of ventilation.
•Wear eye protection when
checking the battery during
charging.
•The battery must be removed
from the vehicle and placed in
a well ventilated area.
(Continued)
WARNING
OLMB073072 ■Example

7-60
Maintenance
Fuse NameSymbolFuse RatingCircuit Protected
Power Window
Left-handLH25APower Window (LH) Relay, Power Window Main Switch,
Passenger Power Window Switch (RHD), Rear Power Window Switch (LH),
Driver Safety Power Window Module (RHD), Passenger Power Window Switch (LHD)
Button Start 227.5AImmobilizer Module, Smart Key Control Module, Start/Stop Button Switch
Brake SwitchBRAKE
SWITCH7.5AStop Lamp Switch, Smart Key Control Module
Air conditioner7.5AIonizer, A/C Control Module, Electronic A/C Compressor, E/R Junction Block
Washer15AMultifunction Switch
Seat Heater RearRR25ARear Seat Warmer Module
Battery
Management
SystemBATTERYMANAG-
EMENT10ABMS Control Module
Power Seat DriverDRV30ADriver Seat Manual Switch
AMPAMP30AAMP
AMSAMS30ABattery Sensor
Module 1MODULE110ADriver Power Outside Mirror, Passenger Power Outside Mirror
Door Lock20ADoor Lock/Unlock Relay, ICM Relay Box (Dead Lock Relay)
Instrument panel fuse panel

PROCEDURE FOR ENTERING FORCED ENGINE ACTIVATION MODE
If the engine needs to be kept run-
ning while the vehicle is stopped to
inspect emission gas or perform
vehicle maintenance, follow below
procedure to enter forced engine
activation mode.
1. Place the shift lever in P (Park)
position with the vehicle stopped.
Engage the parking brake. Then,
follow the steps (1) to (5).
Information
Below steps from (1) to (5) must be
completed within 60 sec. If not, the
process is reset and you must start
again from step (1).(1) Turn the ignition switch to the ON
position. Vehicles equipped with
the smart key, press the Engine
Start/Stop button twice without
depressing the brake pedal.
(2) Place the shift lever in P (Park)
position and depress the acceler-
ator pedal twice.
(3) Place the shift lever in N (Neutral)
position and depress the acceler-
ator pedal twice.
(4) Place the shift lever in P (Park)
position and depress the acceler-
ator pedal twice.
(5) With the brake pedal depressed,
start the engine, and maintain
idling state.
Information
The engine remains in idle state and
the forced engine activation mode is
maintained even when the gear is
shifted to a different position.2. " " indicator on the instrument
cluster blinks when the vehicle is
in forced engine activation mode.
Check the " " indicator blinking
to ensure that the forced engine
activation mode is correctly
entered.
Information
The " " indicator continues blink-
ing until the forced engine activation
mode is cancelled. When the mode is
cancelled the " " indicator will
stop blinking.
3. To cancel the forced engine acti-
vation mode, turn the vehicle off.
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7-95
7
Maintenance

I-3
Battery (12 volt, Plug-in hybrid vehicle) .....................7-38
Battery recharging......................................................7-40
Battery cooling duct .....................................................2-24
Battery saver function .................................................3-111
Before driving .................................................................5-4
Blind spot detection (BSD) system ..............................5-40
Bluetooth
®Wireless Technology hands-free ..................4-4
Bottle holder ...............................................................3-147
Brake fluid ....................................................................7-29
Brake system.................................................................5-27
Anti-lock brake system (ABS) ..................................5-31
Disc brakes wear indicator ........................................5-28
Electronic stability control (ESC) .............................5-33
Emergency stop signal (ESS) ....................................5-38
Good braking practices ..............................................5-39
Hill-start assist control (HAC)...................................5-38
Parking brake .............................................................5-28
Power brakes..............................................................5-27
Vehicle stability management (VSM) .......................5-36
Bulb replacement
Daytime running lamp ...............................................7-76
Front position lamp....................................................7-68
Front turn signal lamp ...............................................7-68
Headlamp ...................................................................7-68
Headlamp aiming .......................................................7-72
High mounted stop lamp ...........................................7-82Interior light bulb .......................................................7-82
License plate light bulb .............................................7-82
Rear combination lamp bulb .....................................7-77
Rear fog lamp ............................................................7-82
Side repeater lamp ....................................................7-76
Bulb wattage ...................................................................8-3
Button start/stop, see engine start/stop button................5-9
Camera (Rear view)....................................................3-120
Capacities (Lubricants) ...................................................3-6
Care
Exterior care...............................................................7-84
Interior care................................................................7-89
Tire care .....................................................................7-42
Cellular phone charger................................................3-150
Center console storage................................................3-145
Central door lock switch...............................................3-14
Certification label ...........................................................8-8
Chains
Tire chains................................................................5-100
Checking tire inflation pressure ...................................7-44
Child restraint system (CRS)........................................2-38
Booster seats ..............................................................2-40
Children always in the rear ........................................2-38
Forward-facing child restraint system .......................2-40
Installing a child restraint system (CRS)...................2-41
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Index
B
C

I-5
Dual clutch transmission ..............................................5-15
DCT warning messages .............................................5-17
Good driving practices...............................................5-24
Manual shift mode .....................................................5-21
Paddle shifter .............................................................5-23
Shift lever position.....................................................5-19
Shift lock system .......................................................5-22
Shift-lock release .......................................................5-22
Dual clutch transmission shift indicator .......................3-53
Easy access function .....................................................3-19
ECO mode ....................................................................5-20
Electric chromic mirror (ECM) ....................................3-23
Electric power steering (EPS) ......................................3-20
Electronic stability control (ESC) ................................5-33
Emergency commodity .................................................6-47
Emergency stop signal (ESS) .......................................5-38
Emergency towing ........................................................6-45
Emission control system ...............................................7-91
Crankcase emission control system ...........................7-92
Evaporative emission control System .......................7-92
Exhaust emission control system...............................7-92
Engine compartment .......................................................1-8
Hybrid vehicle .............................................................7-3
Plug-in hybrid vehicle .................................................7-4
Engine compartment panel fuse replacement...............7-55
Engine coolant ..............................................................7-25Engine coolant temperature guage ...............................3-46
Engine number................................................................8-9
Engine oil......................................................................7-23
Engine specification .......................................................8-2
Engine Start/Stop button.................................................5-9
Evaporative emission control System ..........................7-92
Exhaust emission control system .................................7-92
Explanation of scheduled maintenance items ..............7-21
Exterior care .................................................................7-84
Exterior overview
Front view ....................................................................1-2
Rear view .....................................................................1-3
Flat tire
Changing tires ............................................................6-21
EC Declaration of conformity for Jack .....................6-27
Jack and tools.............................................................6-20
Jack label ...................................................................6-26
Tire Mobility Kit (TMK) ...........................................6-28
Use of compact spare tires.........................................6-24
Floor mat anchor(s) ....................................................3-153
Fluid
Brake fluid .................................................................7-29
Washer fluid ...............................................................7-30
Forced engine activation mode.....................................7-95
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Index
E
F

I-7
If the 12 volt battery is discharged (hybrid vehicle) ......6-5
If the 12 volt battery is discharged
(plug-in hybrid vehicle) ..................................................6-9
If the engine overheats .................................................6-12
If the engine stalls at a crossroad or crossing ................6-2
If the engine stalls while driving ....................................6-2
If the engine will not start ..............................................6-4
If you have a flat tire ....................................................6-20
If you have a flat tire while driving ...............................6-3
Ignition switch ................................................................5-5
Engine Start/Stop button ..............................................5-9
Key ignition switch......................................................5-6
Immobilizer system ......................................................3-11
Impact sensing door unlock..........................................3-16
Important safety precautions ..........................................2-2
Air bag hazards ............................................................2-2
Always wear your seat belt..........................................2-2
Control your speed.......................................................2-3
Driver distraction .........................................................2-2
Keep your vehicle in safe condition ............................2-3
Restrain all children .....................................................2-2
In case of emergency while driving ...............................6-2
Indicator light ...............................................................3-54
Inside rearview mirror ..................................................3-22
Instrument cluster .........................................................3-45
Instrument panel illumination....................................3-47
Dual clutch transmission shift indicator ....................3-53Gauges and meters .....................................................3-47
LCD display control ..................................................3-81
LCD display messages...............................................3-66
LCD display modes .............................................3-82, 89
Trip computer .....................................................3-96,101
User settings mode ..............................................3-86, 92
Warning and indicator lights......................................3-54
Instrument panel fuse replacement ...............................7-54
Instrument panel overview .............................................1-6
Interior care...................................................................7-89
Interior features
Ashtray .....................................................................3-147
Cigarette lighter .......................................................3-152
Clock ........................................................................3-152
Clothes hanger .........................................................3-153
Cup holder ...............................................................3-147
Floor mat anchor(s) .................................................3-153
Luggage net (holder) ...............................................3-154
Power outlet .............................................................3-149
Sunvisor ...................................................................3-148
Wireless cellular phone charging system ................3-150
Interior lamp AUTO cut .............................................3-114
Interior lights ..............................................................3-114
Front lamps ..............................................................3-114
Interior lamp AUTO cut...........................................3-114
Luggage compartment lamp ....................................3-115
Puddle lamp .............................................................3-116
Rear lamps ...............................................................3-115
Vanity mirror lamp ...................................................3-116
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Index
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