2018 Hyundai Ioniq Plug-in Hybrid engine coolant

7-23
7
Maintenance
Do not allow brake fluid to con-tact the vehicle’s body paint, as
paint damage will result.
Brake fluid, which has been exposed to open air for an
extended time should NEVER be
used as its quality cannot be
guaranteed. It should be dis-
posed of properly.
Do not use the wrong kind of brake fluid. A few drops of miner-
al based oil, such as engine oil, in
your brake system can damage
brake system parts.
Information
Use only the specified brake fluid
(refer to "Recommended Lubricants
and Capacities" in chapter 8).
Checking the Washer Fluid
Level
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. Plain water may be used if
washer fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
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To prevent serious injury or
death, take the following safety
precautions when using washer
fluid:
Do not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely
obscure visibility when
sprayed on the windshield and
may cause loss of vehicle con-
trol resulting in an accident or
damage to paint and body trim.
Do not allow sparks or flames
to contact the washer fluid or
the washer fluid reservoir.
Washer fluid may contain alco-
hol and can be flammable.
Do not drink washer fluid and
avoid contact with skin.
Washer fluid is harmful to
humans and animals.
Keep washer fluid away from
children and animals.
WARNING

7-75
7
Maintenance
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.
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.
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

8-7
88
Specifications, Consumer information and Reporting safety defects
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality.
The correct lubricants also help promote engine efficiency that results in improved fuel economy.
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LubricantVolume Classification
Engine oil *
1*2(drain and refill)
Recommends
4.0 US qt. (3.8 l)0W-20 (SAE Viscosity Number),
API SN (or above) or ACEA C2 *3
Dual clutch transmission fluid1.69 ~ 1.79 US qt. (1.6 ~ 1.7
l)
HK SYN DCTF 70W (SK)
SPIRAX S6 GHME 70W DCTF (H.K.SHELL)
GS DCTF HD 70W (GS CALTEX)
(API GL-4, SAE 70W)
Engine clutch actuator fluid0.08 ~ 0.13 US qt. (80 ~ 120 cc)FMVSS116 DOT3
Engine coolant7.07 US qt. (6.7 l)Mixture of antifreeze and water
(Phosphate-based Ethylene glycol coolant for
aluminum radiator)
Inverter coolant3.38 US qt. (3.2 l)
Brake fluid0.74~0.85 US qt. (0.7 ~ 0.8 l)FMVSS116 DOT-3 or DOT-4
FuelHybrid vehicle11.9 US gal. (45 l)Refer to "Fuel requirements" in the Foreword
chapter.
Plug-in hybrid vehicle11.4 US gal. (43 l)
*1: Refer to the recommended SAE viscosity numbers on the next page.
*2: Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel econ -
omy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure
in everyday driving, but in a year's time, they can offer significant cost and energy savings.
*
3: If the ACEA C2 engine oil is not available in your country, you are able to use ILSAC GF-3 (or above) or ACEA A3 (or above).

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-5
Dual clutch transmission.................................................5-12DCT warning messages..............................................5-14
ECO mode ..................................................................5-17
Good driving practices ...............................................5-20
Manual shift mode......................................................5-18
Paddle shifter ..............................................................5-19
Shift lever position .....................................................5-16
Shift lock system ........................................................5-18
SPORT mode ..............................................................5-17
Dual clutch transmission shift indicator .........................3-61 Shift indicator pop-up ................................................3-62
Dynamic Bending Light (DBL) ....................................3-119
Easy access function .......................................................3-15
ECO mode.......................................................................5\
-17
Electric Chromic Mirror (ECM) with HomeLink
®system,
compass and Blue Link®................................................3-19
Electric Power Steering (EPS) ........................................3-16
Electronic Stability Control (ESC) .................................5-28
Emergency locking retractor...........................................2-26
Emergency towing ..........................................................6-42
Emission control system .................................................7-74 Crankcase emission control system ...........................7-74
Evaporative emission control System ........................7-74
Exhaust emission control system ...............................7-75
Engine compartment .........................................................7-3
Engine compartment panel fuse replacement .................7-51 Engine coolant ................................................................7-18
Engine number location ..................................................8-10
Engine oil ........................................................................\
7-16
Engine specification..........................................................8-2
Engine Start/Stop button ...................................................5-6
Evaporative emission control System.............................7-74
Exhaust emission control system....................................7-75
Explanation of scheduled maintenance items.................7-14
Exterior care....................................................................7-67\
Flat tire
Spare tire ....................................................................6-20\
Tire Mobility Kit (TMK) ..................................6-25, 6-33
Floor mat anchor(s).......................................................3-153
Fluid Brake fluid ..................................................................7-22
Washer fluid ...............................................................7-23
Front seat adjustment ........................................................2-6 Manual adjustment .......................................................2-7
Power adjustment .........................................................2-9
Seatback pocket ..........................................................2-12
Front seat head restraints Adjusting the height up and down .............................2-17
Removal/Reinstallation ..............................................2-18
Fuel filler door Hybrid vehicle ............................................................3-48
Plug-in hybrid vehicle ................................................3-51
I
Index
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F

I-8
Interior lights.................................................................3-120Door lamp.................................................................3-120
Interior lamp AUTO cut ...........................................3-120
Luggage compartment lamp .....................................3-121
Map lamp..................................................................3-120
Rear lamps ................................................................3-121
Room lamp ...............................................................3-120
Vanity mirror lamp ...................................................3-121
Inverter coolant ...............................................................7-18
Jump starting Hybrid vehicle ..............................................................6-6
Plug-in hybrid vehicle ..................................................6-9
Label Air bag warning labels ...............................................2-70
Regrigerent label location ..........................................8-10
Tire sidewall labeling .................................................7-40
Tire specification and pressure label location ............8-10
Vehicle certification label location ...............................8-9
Lane change signals ......................................................3-117
Lane Keeping Assist System (LKAS) ............................5-56
Lap/shoulder belt ............................................................2-25 LCD display control .......................................................3-88
LCD modes (for cluster type A).................................3-89
LCD modes (for cluster type B).................................3-97
LCD display messages AC Charger Error!......................................................3-84
Aux. Battery Saver+ was used while parked .............3-84
Check active air flap system ......................................3-78
Check BRAKE SWITCH fuse ...................................3-74
Check brakes ..............................................................3-81
Check fuel door ..........................................................3-83
Check headlight ..........................................................3-77
Check hybrid system ..................................................3-78
Check hybrid system. Do not start engine .................3-79
Check hybrid system. Turn engine off .......................3-79
Check regenerative brakes .........................................3-81
Check steering wheel lock system .............................3-73
Check virtual engine sound system............................3-81
Door, hood, liftgate open............................................3-74
Engine has overheated/Engine overheated.................3-76
Exit SPORT mode to switch to EV ............................3-87
Fuel door open............................................................3-83
Key not detected .........................................................3-73
Key not in vehicle ......................................................3-73
Lights mode ................................................................3-77
Low fuel .....................................................................3-7\
6
Low Key Battery ........................................................3-73
Index
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L

I-9
Low pressure ..............................................................3-76
Low washer fluid........................................................3-76
Low/High system temp. maintaining hybrid mode....3-85
Low/High system temp. switching to hybrid mode ...3-86
Maintaining Hybrid mode to continue heating or air conditioning .......................................................3-85
Maintaining Hybrid mode to protect engine ..............3-86
Park with engine on to charge battery........................3-80
Press brake pedal to start vehicle ...............................3-73
Press START button again .........................................3-73
Press START button while turning wheel ..................3-73
Press START button with key ....................................3-74
Rear parking assist system malfunction .....................3-78
Refill inverter coolant ................................................3-80
Refuel to prevent hybrid battery damage ...................3-80
Remaining time ..........................................................3-82
Shift to P.....................................................................3-7\
3
Shift to P to charge .....................................................3-84
Shift to P to start vehicle ............................................3-74
Stop vehicle and check brakes ...................................3-81
Stop vehicle and check power supply ........................3-79
Stop vehicle and check regen. brakes ........................3-81
Stop vehicle to charge battery ....................................3-80
Sunroof open ..............................................................3-75
Switching to Hybrid mode to allow heating or air conditioning .......................................................3-85
Switching to Hybrid mode to lubricate engine ..........3-86 Turn on FUSE SWITCH/
Turn FUSE SWITCH On ........................................3-76
Unplug vehicle to start ...............................................3-82
Wait until fuel door opens ..........................................3-82
Wiper ........................................................................\
..3-77
Liftgate ........................................................................\
....3-46
Light bulbs ......................................................................7-\
55
Lighting ........................................................................\
.3-115 Auto light position ....................................................3-115
Battery saver function ..............................................3-118
Daytime Running Light (DRL) ................................3-115
Dynamic Bending Light (DBL) ...............................3-119
Headlamp delay function..........................................3-118
Headlamp position ....................................................3-116
High beam operation ................................................3-117
Lane change signals..................................................3-117
One-touch turn signal function.................................3-118
Parking lamp position...............................................3-116
Turn signals ..............................................................3-117
Lubricants and capacities..................................................8-7
Luggage compartment lamp .........................................3-121
Luggage volume ...............................................................8-6
I
Index

I-14
Tire sidewall labeling .................................................7-40
Tire terminology and definitions ................................7-44
Tire traction ................................................................7-39
Wheel alignment and tire balance ..............................7-38
Wheel replacement .....................................................7-39
Towing ........................................................................\
....6-40
Trip computer Hybrid vehicle ..........................................................3-104
Plug-in hybrid vehicle ..............................................3-109
Turn signals ...................................................................3-117
USB charger ..................................................................3-150
Vanity mirror lamp........................................................3-121
Vehicle break-in process ...................................................F-9
Vehicle certification label location ...................................8-9
Vehicle data collection and event data recorders ...........F-10
Vehicle identification number (VIN) location ..................8-9
Vehicle load limit ............................................................5-93 Tire loading information label....................................5-94
Vehicle modifications .......................................................F-9
Vehicle Stability Management (VSM)............................5-31 Warning and indicator lights...........................................3-62
Air bag warning light .................................................3-63
Anti-lock Brake System (ABS) warning light ...........3-64
Autonomous Emergency Braking (AEB) warning light ...........................................................3-72
Charging cable connection indicator..........................3-63
Charging system warning light ..................................3-66
Cruise indicator light ..................................................3-71
Cruise SET indicator light..........................................3-71
ECO mode indicator light ..........................................3-72
Electric Power Steering (EPS) warning light.............3-65
Electronic brake force warning light..........................3-65
Electronic Stability Control (ESC) indicator light .....3-69
Electronic Stability Control (ESC) OFF indicator light ..........................................................3-69
Engine coolant temperature warning light .................3-67
Engine oil pressure warning light ..............................3-66
EV mode indicator .....................................................3-62
Exterior light warning light ........................................3-71
High beam indicator light ..........................................3-70
Immobilizer indicator light ........................................3-69
Lane Keeping Assist System (LKAS) warning light ...........................................................3-72
LED headlight warning light......................................3-71
Light ON indicator light .............................................3-70
Low fuel level warning light ......................................3-67
Index
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