air filter Hyundai Ioniq Plug-in Hybrid 2020 Owner's Manual

3-153
Convenient features of your vehicle
3
Air conditioning system operation
tips
If the vehicle has been parked in
direct sunlight during hot weather,
open the windows for a short time
to let the hot air inside the vehicle
escape.
After sufficient cooling has been
achieved, switch back from the
recirculated air to the fresh outside
air position.
To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system with the win-
dows and sunroof closed.
Use the air conditioning system
every month only for a few minutes
to ensure maximum system per-
formance. If you operate air conditioner
excessively, the difference between
the temperature of the outside air
and that of the windshield could
cause the outer surface of the
windshield to fog up, causing loss
of visibility. In this case, set the
mode selection knob or button to
the position and fan speed
control to the lower speed.
System Maintenance
Climate control air filter
This filter is installed behind the glove
box. It filters the dust or other pollu-
tants that enter the vehicle through the
heating and air conditioning system.
Have the climate control air filter be
replaced by an authorized HYUNDAI
dealer according to the maintenance
schedule. If the vehicle is being driv-
en in severe conditions such as dusty
or rough roads, more frequent air
conditioner filter inspections and
changes are required.
If the air flow rate suddenly decreas-
es, the system should be checked at
an authorized HYUNDAI dealer.
1LDA5047
Outside air
Recirculated
air
Climate control
air filterBlower
Evaporator
coreHeater core

7
Maintenance
7
Maintenance
Engine Compartment .............................................7-3
Maintenance Services ...........................................7-5
Owner's Responsibility .....................................................7-5
Owner Maintenance Precautions..................................7-5
Owner Maintenance ..............................................7-6
How to Disconnect the (-) Cable for Regular
Maintenance (Hybrid vehicle) ........................................7-7
Owner Maintenance Schedule .......................................7-7
Scheduled Maintenance Services........................7-8
Normal Maintenance Schedule ......................................7-9
Maintenance Under Severe Usage Conditions ........7-12
Severe driving conditions..............................................7-13
Explanation of Scheduled Maintenance
Items ......................................................................7-14
Engine Oil ..............................................................7-16
Checking the Engine Oil Level .....................................7-16
Checking the Engine Oil and Filter .............................7-17
Engine Coolant/Inverter Coolant .......................7-18
Checking the Coolant Level ..........................................7-18
Changing Coolant ............................................................7-21
Hybrid Starter & Generator (HSG) Belt ...........7-21
Checking the Hybrid Starter &
Generator (HSG) Belt .....................................................7-21
Brake Fluid ............................................................7-22
Checking the Brake Fluid Level ...................................7-22
Washer Fluid .........................................................7-23
Checking the Washer Fluid Level................................7-23
Parking Brake .......................................................7-23
Checking the Parking Brake .........................................7-23
Air Cleaner ............................................................7-24
Filter Replacement ..........................................................7-24
Climate Control Air Filter ....................................7-26
Filter inspection ...............................................................7-26
Wiper Blades.........................................................7-28
Blade inspection ..............................................................7-28
Blade Replacement .........................................................7-28
Battery (12 Volt, Plug-In Hybrid Vehicle) ........7-31
For Best Battery Service ..............................................7-32
Battery Recharging ........................................................7-32
Reset Features.................................................................7-33
Tires and Wheels .................................................7-34
Tire Care ............................................................................7-34
Recommended Cold Tire Inflation Pressures ...........7-35
Check Tire Inflation Pressure ......................................7-36
Tire Rotation.....................................................................7-377

7-9
7
Maintenance
Normal Maintenance Schedule
The following maintenance services must be performed to ensure good emission control and performance.
Keep receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown, the
frequency of service is determined by whichever occurs first.
Number of months or driving distance, whichever comes first
Months1224364860728496108120132144156168180
Miles7.51522.53037.54552.56067.575839098105113
Km1224364860728496108120132144156168180
HSG belts *1Inspect every 7,500 miles or 12 months,
and replace every 67,500 miles or 48 months
Engine oil and engine oil filterRRRRRRRRRRRRRRR
Fuel additives *2Add fuel additives every 7,500 miles or 12 months
Air cleaner filterIIRIIRIIRIIRIIR
Spark plugsReplace every 97,500 miles
Rotate tiresRotate tires every 7,500 miles
Climate control air filterRRRRRRRRRRRRRRR
Vacuum hoseIIIIIIIIIIIIIII
Engine coolant / Inverter coolantAt first, replace at 120,000 miles or 10 years :
after that, replace every 30,000 miles or 24 months
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: Inspect HSG belt for evidence of cuts, crocks, excessive wear or oil saturation and replace if necessary. If drive belt noise
occurred, readjust drive belt tension before replace.
*
2: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended. Additives are available from your
authorized HYUNDAI dealer along with information on how to use them. Do not mix other additives.

7-11
7
Maintenance
Normal Maintenance Schedule (CONT.)
Number of months or driving distance, whichever comes first
Months1224364860728496108120132144156168180
Miles7.51522.53037.54552.56067.575839098105113
Km1224364860728496108120132144156168180
Fuel tank air filter *3IIIIIII
Fuel filter *3IIIIIII
Fuel lines, hoses and connectionsIII
Parking brakeIIIIIII
Brake fluidIIIIIII
Engine clutch actuator fluidInspect every 7,500 miles, and replace every 22,500 miles
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
3: Fuel filter & Fuel tank air filter are considered to be maintenance free but periodic inspection is recommended for this mainte-
nance schedule depends on fuel quality. If there are some important safety matters like fuel flow restriction, surging, loss of
power, hard starting problem, etc. replace the fuel filter immediately regardless of maintenance schedule and consult an
authorized HYUNDAI dealer for details.

7-12
Maintenance
Maintenance Under Severe Usage Conditions
The following items must be serviced more frequently on cars normally used under severe driving conditions.
Refer to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
Maintenance itemMaintenance
operationMaintenance intervalsDriving condition
HSG (Hybrid Starter&Generator) belt
REvery 30,000 miles (48,000 km)
or 24 months
C, D, E, L
IEvery 3,750 miles (6,000 km) or 6 months
Engine oil and filterREvery 3,750 miles (6,000 km) or 6 monthsA, B, C, D, E,
F, G, H, I, K
Air cleaner filterRMore frequentlyC, E
Spark plugsRMore frequentlyB, H
Climate control air filter
(for evaporator and blower unit)RMore frequentlyC, E
Front brake disc/pads, calipersIMore frequentlyC, D, G, H

7-14
Maintenance
E EX
XP
PL
LA
AN
NA
AT
TI
IO
ON
N
O
OF
F
S
SC
CH
HE
ED
DU
UL
LE
ED
D
M
MA
AI
IN
NT
TE
EN
NA
AN
NC
CE
E
I
IT
TE
EM
MS
S
Engine Oil and Filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the
vehicle is being driven in severe con-
ditions, more frequent oil and filter
changes are required.
Fuel Filter
A clogged-up fuel filter may limit the
vehicle driving speed, damage the
emission system, and cause the
hard starting. When a considerable
amount of foreign substances are
accumulated in the fuel tank, the fuel
filter should be replaced.
Upon installing a new fuel filter, oper-
ate the engine for several minutes,
and check the connections for any
leakages. Fuel filters should be
installed by an authorized HYUNDAI
dealer.
Fuel Lines, Fuel Hoses and
Connections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized HYUNDAI
dealer replace any damaged or leak-
ing parts immediately.
Vapor Hose and Fuel Filler
Cap
The vapor hose and fuel filler cap
should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure a new vapor
hose or fuel filler cap is correctly
replaced.
HSG (Hybrid Starter &
Generator) Belt
The HSG belt should be changed at
the intervals specified in the mainte-
nance schedule.
Air Cleaner Filter
A genuine HYUNDAI air cleaner filter
is recommended when the filter is
replaced.
Spark Plugs
Make sure to install new spark plugs
of the correct heat range.
Cooling System
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Engine Coolant / Inverter
Coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.

7-24
Maintenance
A AI
IR
R
C
CL
LE
EA
AN
NE
ER
R
Filter Replacement
Do not attempt to wash or to rinse it,
as water will damage the filter.
If soiled, the air cleaner filter must be
replaced.
Replace the filter according to the
Maintenance Schedule.1. Loosen the air cleaner cover
attaching clips and open the
cover.2. Wipe the inside of the air cleaner.
3. Replace the air cleaner filter.
4. Lock the cover with the cover
attaching clips.
5. Check that the cover is firmly
installed.
OAEPH076010
OAEPH076011OAE076012

7-25
7
Maintenance
Information
If the vehicle is operated in extremely
dusty or sandy areas, replace the ele-
ment more often than the usual rec-
ommended intervals (refer to
"Maintenance Under Severe Usage
Conditions" in this chapter).
Do not drive with the air cleaner
filter removed. This will result in
excessive engine wear.
When removing the air cleaner
filter, be careful that dust or dirt
does not enter the air intake, or
damage may result.
Use HYUNDAI genuine parts.
Use of non-genuine parts could
damage the air flow sensor.
NOTICE
i

7-26
Maintenance
C CL
LI
IM
MA
AT
TE
E
C
CO
ON
NT
TR
RO
OL
L
A
AI
IR
R
F
FI
IL
LT
TE
ER
R
Filter inspection
The climate control air filter should
be replaced according to the
Maintenance Schedule. If the vehicle
is operated in severely air-polluted
cities or on dusty rough roads for a
long period, it should be inspected
more frequently and replaced soon-
er. Replace the climate control air fil-
ter by following the procedure below
and be careful to avoid damaging
other components.
1. With the glove box open, remove
the stoppers on both sides to
allow the glove box to hang freely
on the hinges.2. Remove the support rod (1).
OAE076013OAE076014

7-76
Maintenance
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 Including Onboard
Refueling Vapor Recovery
(ORVR)
The Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmos-
phere. The ORVR system is
designed to allow the vapors from
the fuel tank to be loaded into a can-
ister while refueling at the gas sta-
tion, preventing the escape of fuel
vapors into the atmosphere.
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.