2018 Hyundai Ioniq Hybrid Maintenance

7-92
Maintenance
For the Inspection and Maintenance
Test (with Electronic Stability
Control (ESC) system)
• To prevent the vehicle from mis-
firing during dynamometer test-
ing, turn the Electronic Stability
Control (ESC) system off by
pressing the ESC switch (ESC
OFF light illuminated).
• After dynamometer testing is
completed, turn the ESC system
back on by pressing the ESC
switch again.
1. Crankcase emission control
system
The positive crankcase ventilation
system is employed to prevent air
pollution caused by blow-by gases
being emitted from the crankcase.
This system supplies fresh filtered air
to the crankcase through the air
intake hose. Inside the crankcase,
the fresh air mixes with blow-by
gases, which then pass through the
PCV valve into the induction system.
2. Evaporative emission control
system
The Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmos-
phere.
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid valve.
Purge Control Solenoid Valve
(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms-up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust emission control
system
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
When the engine starts or fails to
start, excessive attempts to restart
the engine may cause damage to the
emission system.
NOTICE

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7
Maintenance
Engine exhaust (carbon monox-
ide) precautions
• Carbon monoxide can be present
with other exhaust fumes. If you
smell exhaust fumes of any kind in
your vehicle, drive with all the win-
dows fully open. Have your vehicle
checked and repaired immediately.• Do not operate the engine in con-
fined or closed areas (such as
garages) any more than what is
necessary to move the vehicle in or
out of the area.
• When the vehicle is stopped in an
open area for more than a short
time with the engine running,
adjust the ventilation system (as
needed) to draw outside air into the
vehicle.
• Never sit in a parked or stopped
vehicle for any extended time with
the engine running.
• When the engine stalls or fails to
start, excessive attempts to restart
the engine may cause damage to
the emission control system.
Operating precautions for cat-
alytic converters (if equipped)
The exhaust system and cat-
alytic converter are very hot
during and immediately after
the engine has been running. To
avoid SERIOUS INJURY or
DEATH:
•Do not park, idle, or drive the
vehicle over or near flamma-
ble objects, such as grass,
vegetation, paper, leaves, etc.
A hot exhaust system can
ignite flammable items under
your vehicle.
•Keep away from the exhaust
system and catalytic convert-
er or you may get burned.
Also, Do not remove the heat
sink around the exhaust sys-
tem, do not seal the bottom of
the vehicle, and do not coat
the vehicle for corrosion con-
trol. It may present a fire risk
under certain conditions.
WARNING
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.
WARNING

Your vehicle is equipped with a cat-
alytic converter emission control
device.
To prevent damage to the catalytic
converter and to your vehicle, take
the following precautions:
• Use only UNLEADED FUEL for
gasoline engines.
• Do not operate the vehicle when
there are signs of engine malfunc-
tion, such as misfire or a noticeable
loss of performance.
• Do not misuse or abuse the
engine. Examples of misuse are
coasting with the hybrid system off
and descending steep grades in
gear with the hybrid system off.
• Do not operate the engine at high
idle speed for extended periods (5
minutes or more).
• Do not modify or tamper with any
part of the engine or emission con-
trol system. All inspections and
adjustments must be made by an
authorized HYUNDAI dealer.• Avoid driving with an extremely low
fuel level.
Running out of fuel could cause
the engine to misfire, damaging
the catalytic converter. Maintenance
7-94

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
Maintenance

I-2
Air bag warning labels .................................................2-72
Air bags.........................................................................2-51
Additional safety precautions ....................................2-71
Air bag collision sensors ...........................................2-65
Air bag inflation conditions .......................................2-67
Air bag non-inflation conditions ...............................2-68
Air bag warning labels...............................................2-72
Curtain air bags..........................................................2-58
Do not install a child restraint on the front
passenger seat ..........................................................2-64
Driver's air bag...........................................................2-54
Driver's knee airbag ...................................................2-54
How does the air bags system operate?.....................2-59
Passenger's front air bag ON/OFF switch .................2-55
Passenger's front air bag ............................................2-54
Side air bags...............................................................2-57
SRS Care....................................................................2-70
SRS components and functions .................................2-59
SRS warning light......................................................2-60
What to expect after an air bag inflates.....................2-63
Why didn't my air bag go off in a collision ..............2-65
Air cleaner ....................................................................7-31
Air conditioner compressor label ...................................8-9
Air conditioning refrigerant label ...............................3-124
Air conditioning system specification ............................8-5
Air ventilation seats ......................................................2-22
Air conditioning system .............................................3-127Alarm system ................................................................3-17
Antenna ...........................................................................4-2
Anti-lock brake system (ABS) .....................................5-31
Appearance care ...........................................................7-84
Exterior care...............................................................7-84
Interior care................................................................7-89
Armrest .........................................................................2-16
Ashtray........................................................................3-147
Audio / Video / Navigation (AVN) system ....................4-5
Auto defogging system ...............................................3-141
Auto light position ......................................................3-107
Automatic climate control system ..............................3-127
Air conditioning .......................................................3-135
Air Conditioning refrigerant label ...........................3-139
Air intake control .....................................................3-133
Automatic heating and air conditioning ..................3-128
Driver only ...............................................................3-134
Fan speed control .....................................................3-134
Manual heating and air conditioning .......................3-129
Mode selection .........................................................3-130
OFF mode ................................................................3-135
SYNC button ...........................................................3-132
System maintenance ................................................3-138
Temperature control .................................................3-132
Temperature unit conversion ...................................3-133
Automatic ventilation .................................................3-144
Autonomous emergency braking (AEB) system ..........5-49
Aux, USB and iPod ........................................................3-2
Index
A

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-8
Interior overview ............................................................1-4
Inverter coolant .............................................................7-25
Jack and tools ...............................................................6-20
Jump starting ..............................................................6-6, 9
Label
Air conditioner compressor label ................................8-9
Tire sidewall labeling.................................................7-48
Tire specification and pressure label ...........................8-9
Vehicle certification label ............................................8-8
Lane keeping assist system (LKAS) ............................5-62
Lap/shoulder belt ..........................................................2-29
LCD display..................................................................3-71
Assist mode................................................................3-91
Information mode ......................................................3-84
LCD display modes .............................................3-82, 89
SCC/LKAS mode ......................................................3-84
Trip computer mode ............................................3-83, 90
Turn By Turn (TBT) mode ..................................3-83, 91
User settings mode ..............................................3-86, 92
Warning mode ............................................................3-92
LCD display control .....................................................3-81
LCD display messages .................................................3-66
LCD display modes ................................................3-82, 89Light............................................................................3-104
Auto light position ...................................................3-107
Battery saver function ..............................................3-111
Daytime running light (DRL) ..................................3-111
Headlamp delay function .........................................3-111
Headlamp leveling device........................................3-112
Headlamp position ...................................................3-108
High beam operation ...............................................3-108
Position lamp position .............................................3-108
Rear fog lamp...........................................................3-110
Rear fog lamp...........................................................3-110
Turn signals..............................................................3-109
Light bulbs ....................................................................7-67
Lubricants and capacities ...............................................8-6
Luggage compartment lamp .......................................3-115
Luggage net (holder) ..................................................3-154
Luggage volume .............................................................8-5
Main fuse ......................................................................7-56
Maintenance
Explanation of scheduled maintenance items............7-21
Maintenance services ...................................................7-5
Maintenance under severe usage conditions .......7-13, 19
Normal maintenance service .................................7-9, 15
Owner maintenance .....................................................7-6
Scheduled maintenance services .................................7-8
Tire maintenance........................................................7-48
Index
M
J
L

I-9
Maintenance services......................................................7-5
Manual shift mode ........................................................5-21
Mirrors ..........................................................................3-22
Adjusting the outside rearview mirrors .....................3-25
Day/night rearview mirror .........................................3-23
Electric chromic mirror (ECM) .................................3-23
Folding/Unfolding the outside rearview mirror ........3-26
Inside rearview mirror ...............................................3-22
Outside rearview mirror.............................................3-24
Mobile phone charger .................................................3-150
Moonroof, see sunroof..................................................3-32
Multi box ....................................................................3-146
Multi fuse......................................................................7-56
Multimedia system .........................................................4-2
Antenna ........................................................................4-2
Audio / Video / Navigation (AVN) system .................4-5
Aux, USB and iPod .....................................................3-2
Bluetooth
®Wireless Technology hands-free ...............4-4
Steering wheel audio control .......................................4-3
Normal maintenance service
For Europe ...................................................................7-9
Except Europe............................................................7-15Odometer ......................................................................3-52
Oil (Engine) ..................................................................7-23
Outside rearview mirror ...............................................3-24
Outside temperature gauge ...........................................3-51
Owner maintenance ........................................................7-6
Paddle shifter ................................................................5-23
Parking assist system ..................................................3-124
Parking brake ................................................................5-28
Parking brake ................................................................7-31
Passenger's front air bag ON/OFF switch ....................2-55
Passenger's front air bag ...............................................2-54
Plug-in hybrid mode indicator......................................3-51
Position lamp position ................................................3-108
Power brakes.................................................................5-27
Power gauge .................................................................3-48
Power outlet ................................................................3-149
Power steering ..............................................................3-20
Power window lock button ...........................................3-31
Pre-tensioner seat belt...................................................2-31
Puddle lamp ................................................................3-116
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Index
O
P
N