![HYUNDAI IONIQ 5 2023  Owners Manual 05
5-111
System Maintenance
Climate control air filter
OHI048581L
[A] : Outside air, [B] : Recirculated air 
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : PTC & Inner con HYUNDAI IONIQ 5 2023  Owners Manual 05
5-111
System Maintenance
Climate control air filter
OHI048581L
[A] : Outside air, [B] : Recirculated air 
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : PTC & Inner con](/manual-img/35/56168/w960_56168-302.png)
05
5-111
System Maintenance
Climate control air filter
OHI048581L
[A] : Outside air, [B] : Recirculated air 
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : PTC & Inner condenser 
The cabin air filter is installed behind the  
front trunk. It filters the dust or other 
pollutants that enter the vehicle through 
the heating and air conditioning system. 
Have the cabin air filter replaced by an  
authorized HYUNDAI dealer according to 
the maintenance schedule. If the vehicle 
is being driven in severe conditions such 
as dusty or rough roads, more frequent 
cabin air filter inspections and changes 
are required. 
If the air flow rate suddenly decreases,  
have the system inspected at an 
authorized HYUNDAI dealer.
Checking the amount of air  
conditioner refrigerant and 
compressor lubricant 
When the amount of refrigerant is low,  
the performance of the air conditioning 
is reduced. Overfilling also reduces the 
performance of the air conditixoning 
system. 
Therefore, if abnormal operation is  
found, have the system inspected by an 
authorized HYUNDAI dealer.
NOTICE
It is important that the correct type and  
amount of oil and refrigerant is used. 
Otherwise, damage to the compressor 
and abnormal system operation may 
occur. To prevent damage, the air 
conditioning system in your vehicle 
should only be serviced by trained and 
certified technicians.
NOTICE
The refrigerant system should only  
be serviced by trained and certified 
technicians to insure proper and safe 
operation.  
The refrigerant system should be  
serviced in a well-ventilated place.  
The air conditioning evaporator (cooling  
coil) shall never be repaired or replaced 
with one removed from a used or 
salvaged vehicle and new replacement 
MAC evaporators shall be certified 
(and labeled) as meeting SAE Standard J2842.   

07
7-21
Junction Crossing, Lane-Change  Oncoming, Lane-Change Side, Evasive 
Steering Assist function (if equipped)
•	The temperature around the front  
corner radar or rear corner radar is 
high or low
•	 A trailer or carrier is installed around 
the rear corner radar 
•	 The front corner radar or rear corner 
radar is covered with snow, rain, dirt, 
etc.
•	 The bumper around the front corner 
radar or rear corner radar is covered with objects, such as a bumper 
sticker, bumper guard, bike rack, etc.
•	 The bumper around the front corner 
radar or rear corner radar is impacted, 
damaged or the radar is out of position
•	 The front corner radar or rear corner 
radar is blocked by other vehicles, 
walls or pillars
•	 Driving on a highway ramp
•	 Driving on a road where the guardrail 
or wall is in double structure
•	 The other vehicle drives very close 
behind your vehicle, or the other 
vehicle passes by your vehicle in close 
proximity •	
The speed of the other vehicle is very 
fast that it passes by your vehicle in a short time 
•	 Your vehicle passes by the other 
vehicle
•	 Your vehicle has started at the same 
time as the vehicle next to you and 
has accelerated
•	 The vehicle in the next lane moves 
two lanes away from you, or when the 
vehicle two lanes away moves to the 
next lane from you
•	 A motorcycle or bicycle is detected
•	 A vehicle such as a flat trailer is 
detected
•	 A big vehicle such as a bus or truck is 
detected 
•	 A small moving obstacle such as a 
pedestrian, animal, shopping cart or a 
baby stroller is detected
•	 A vehicle with low height such as a 
sports car is detected
•	 The lane is difficult to see due to 
foreign material, such as rain, snow, 
dust, sand, oil and water puddles 
•	 The color of the lane marking is not 
distinguishable from the road 

Driver Assistance System
7-30
Lane Keeping Assist Malfunction  
and Limitations
Lane Keeping Assist malfunction
ONE1071194L
When Lane Keeping Assist is not working  
properly, the ‘Check Lane Safety system’ 
warning message will appear and the 
yellow 
 indicator light will illuminate 
on the cluster. If this occurs, have the  
vehicle be inspected by an authorized 
HYUNDAI dealer. 
Limitations of Lane Keeping Assist 
Lane Keeping Assist may not operate  
properly or may operate unexpectedly 
under the following circumstances: •	 The lane is contaminated or difficult  
to detect because:
 - The lane markings (or road edge)  are covered with rain, snow, dirt, 
oil, etc.
 - The color of the lane marking (or  road edge) is not distinguishable 
from the road  - There are markings (or road 
edges) on the road near the lane 
or the markings (or road edges) on 
the road look similar to the lane 
markings (or road edge) 
 - The lane marking (or road edge) is  indistinct or damaged
 - The shadow is on the lane marking  (or road edge) by a median strip, 
trees, guardrail, noise barriers, etc.
•	 The number of lanes change or the 
lanes merge
•	 There are more than two lane 
markings (or road edges) on the road
•	 The lane markings (or road edges) are 
complicated or a structure substitutes 
for the lines, such as a construction 
area
•	 There are road markings, such as 
zigzag lanes, crosswalk markings and 
road signs
•	 The lane suddenly disappears, such as 
at the intersection
•	 The lane (or road width) is very wide 
or narrow
•	 There is a road edge without a lane
•	 There is a boundary structure in the 
roadway, such as a tollgate, sidewalk, 
curb, etc.
•	 The distance to the front vehicle is 
extremely short or the vehicle in front 
is covering the lane marking (or road 
edge)
 Information
For more details on the limitations of the  
front view camera, refer to “Forward 
Collision-Avoidance Assist (FCA)” section 
in this chapter.  

Maintenance
9-62
NOTICE
Using anything but recommended  
cleaners and procedures may affect the 
fabric’s appearance and fire-resistant 
properties.
Leather (if equipped)
•	Features of seat leather
 - Leather is made from the outer skin  of an animal, which goes through a  
special process to be available for 
use. Since it is a natural product, 
each part differs in thickness or 
density. 
Wrinkles may appear as a natural  
result of stretching and shrinking 
depending on the temperature and 
humidity.
 - The seat is made of stretchable  fabric to improve comfort.
 - The parts contacting the body are  curved and the side supporting 
area is high which provides driving 
comfort and stability.
 - Wrinkles may appear naturally  from usage. It is not a fault of the 
products.
NOTICE
•	 Wrinkles or abrasions which appear  
naturally from usage are not covered 
by warranty.
•	 Belts with metallic accessories, 
zippers or keys inside the back 
pocket may damage the seat fabric.
•	 Make sure not to wet the seat. It may 
change the nature of natural leather.
•	 Jeans or clothes which could bleach 
may contaminate the surface of the 
seat covering fabric. •	
Caring for the leather seats
 - Vacuum the seat periodically to  remove dust and sand on the seat. It 
will prevent abrasion or damage of 
the leather and maintain its quality.
 - Wipe the natural leather seat cover  often with dry or soft cloth.
 - Use of proper leather protector may  prevent abrasion of the cover and 
helps maintain the color. Be sure to 
read the instructions and consult 
a specialist when using leather 
coating or protective agent.
 - Light colored (beige, cream beige)  leather is easily contaminated and 
the stain is noticeable. Clean the 
seats frequently.
 - Avoid wiping with wet cloth. It may  cause the surface to crack.
•	 Cleaning the leather seats
 - Remove all contaminations  instantly. Refer to instructions below 
for removal of each contaminant.
 - Cosmetic products (sunscreen,  foundation, etc.) 
Apply cleansing cream on a cloth  
and wipe the contaminated spot. 
Wipe off the cream with a wet cloth 
and remove water with a dry cloth.
 - Beverages (coffee, soft drink, etc.) Apply a small amount of neutral 
detergent and wipe until 
contaminations do not smear.
 - Oil Remove oil instantly with 
absorbable cloth and wipe with 
stain remover used only for natural 
leather.
 - Chewing gum Harden the gum with ice and 
remove gradually.