![HYUNDAI ELANTRA 2023  Owners Manual Convenience Features5-90
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin HYUNDAI ELANTRA 2023  Owners Manual Convenience Features5-90
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin](/manual-img/35/56086/w960_56086-224.png)
Convenience Features5-90
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air filter is installed behind 
the glove box. 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, 
the system should be checked at an 
authorized HYUNDAI dealer.
 Information
[  Replace the filter according to the 
Maintenance Schedule. 
[  If the car is being driven in severe 
conditions such as dusty, rough 
roads, more frequent cabin air filter 
inspections and changes are required. 
[  When the air flow rate suddenly 
decreases, have the system be checked 
by 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 conditioning 
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 are 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. 
![HYUNDAI ELANTRA 2023  Owners Manual Convenience Features5-102
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabi HYUNDAI ELANTRA 2023  Owners Manual Convenience Features5-102
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabi](/manual-img/35/56086/w960_56086-236.png)
Convenience Features5-102
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air filter is installed behind 
the glove box. 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, 
the system should be checked at an 
authorized HYUNDAI dealer.
 Information
[  Replace the filter according to the 
Maintenance Schedule. 
[  If the car is being driven in severe 
conditions such as dusty, rough 
roads, more frequent cabin air filter 
inspections and changes are required. 
[  When the air flow rate suddenly 
decreases, have the system be checked 
by 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 conditioning 
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 are 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. 

Engine Compartment ........................................................................\
............ 9-3
Maintenance Services ........................................................................\
...........9-4
Owner’s Responsibility ........................................................................\
.................... 9-4
Owner Maintenance Precautions ........................................................................\
.... 9-4
Owner Maintenance ........................................................................\
.............. 9-5Owner Maintenance Schedule ........................................................................\
........ 9-5
Scheduled Maintenance Services ................................................................ 9-7Normal Maintenance Schedule ........................................................................\
....... 9-9
Maintenance Under Severe Usage Conditions ..................................................... 9-12
Explanation of Scheduled Maintenance Items .......................................... 9-14Dual clutch transmission fluid  ........................................................................\
....... 9-15
Engine Oil ........................................................................\
............................. 9-16Checking the Engine Oil Level ........................................................................\
........9-16
Checking the Engine Oil and Filter ........................................................................\
9-18
Engine Coolant ........................................................................\
..................... 9-19Checking the Engine Coolant Level .......................................................................9\
-19
Changing Engine Coolant ........................................................................\
............... 9-21
Brake/Clutch Fluid ........................................................................\
............... 9-22Checking the Brake/Clutch Fluid Level ................................................................ 9-22
Washer Fluid ........................................................................\
......................... 9-23Checking the Washer Fluid Level ........................................................................\
.. 9-23
Parking Brake ........................................................................\
....................... 9-23Checking the Parking Brake ........................................................................\
.......... 9-23
Air Cleaner ........................................................................\
............................ 9-24Filter Replacement ........................................................................\
......................... 9-24
Cabin Air Filter ........................................................................\
...................... 9-26Filter Inspection........................................................................\
.............................. 9-26
Filter Replacement ........................................................................\
......................... 9-26
Wiper Blades ........................................................................\
........................ 9-27Blade Inspection ........................................................................\
............................ 9-27
Blade Replacement ........................................................................\
........................ 9-27
Battery ....................................................................\
...................................... 9-29
For Best Battery Service ........................................................................\
................ 9-30
Battery Capacity Label ........................................................................\
................... 9-30
Battery Recharging ........................................................................\
.........................9-31
Reset Items ........................................................................\
......................................9-31
9. Maintenance
9 

Maintenance9-4
You should exercise the utmost care 
to prevent damage to your vehicle and 
injury to yourself whenever performing 
any maintenance or inspection 
procedures.
Have your vehicle maintained and 
repaired by an authorized HYUNDAI 
dealer. An authorized HYUNDAI dealer 
meets HYUNDAI’s high service quality 
standards and receives technical support 
from HYUNDAI in order to provide you 
with a high level of service satisfaction.
Owner’s Responsibility
Maintenance service and record 
retention are the owner’s responsibility.
You should retain documents that show 
proper maintenance has been performed 
on your vehicle in accordance with 
the scheduled maintenance service 
charts shown on the following pages. 
You need this information to establish 
your compliance with the servicing 
and maintenance requirements of your 
vehicle warranties.
Detailed warranty information is 
provided in your Owner’s Handbook & 
Warranty Information booklet.
Repairs and adjustments required as a 
result of improper maintenance or a lack 
of required maintenance are not covered.
Owner Maintenance Precautions
Inadequate, incomplete or insufficient 
servicing may result in operational 
problems with your vehicle that could 
lead to vehicle damage, an accident, or 
personal injury. This chapter provides 
instructions only for the maintenance 
items that are easy to perform. Several 
procedures can be done only by an 
authorized HYUNDAI dealer with special 
tools.
Your vehicle should not be modified 
in any way. Such modifications may 
adversely affect the performance, safety 
or durability of your vehicle and may, in 
addition, violate conditions of the limited 
warranties covering the vehicle.
Certain modifications may also be in 
violation of regulations established by 
the U.S. Department of Transportation 
and other federal or state agencies.
NOTICE
Improper owner maintenance during 
the warranty period may affect 
warranty coverage. For details, read 
the separate Owner’s Handbook & 
Warranty Information booklet provided 
with the vehicle. If you’re unsure about 
any service or maintenance procedure, 
have it done by an authorized HYUNDAI 
dealer.
MAINTENANCE SERVICES 

09
9-7
Follow Normal Maintenance Schedule if the vehicle is usually operated where none of 
the following conditions apply. If any of the following conditions apply, you must follow 
the Maintenance Under Severe Usage Conditions.
[ Repeatedly driving short distance of less than 8 km (5 miles) in normal temperature 
of less than 16 km (10 miles) in freezing temperature. 
[  Extensive engine idling or low speed driving for long distances. 
[  Driving on rough, dusty, muddy, unpaved, graveled or salt- spread roads. 
[  Driving in areas using salt or other corrosive materials or in very cold weather. 
[  Driving in heavy dust condition. 
[  Driving in heavy traffic area. 
[  Driving on uphill, downhill, or mountain roads repeatedly. 
[  Using for towing or camping and driving with loading on the roof.
[  Driving as a patrol car, taxi, other commercial use of vehicle towing. 
[  Frequently driving under high speed or rapid acceleration/deceleration. 
[  Frequently driving in stop-and-go conditions. 
[  Engine oil usage which is not recommended(Mineral type, Semi-synthetic, Lower 
grade spec, etc.) 
If your vehicle is operated under the above conditions, you should inspect, replace 
or refill more frequently than the following Normal Maintenance Schedule. After the 
periods or distance shown in the chart, continue to follow the prescribed maintenance 
intervals. 
NOTICE
After 10 years or 100,000 miles, use severe maintenance schedule. 
SCHEDULED MAINTENANCE SERVICES 

Maintenance9-10
Normal Maintenance Schedule (CONT)
MAINTENANCE   INTERVALS
MAINTENANCE  
ITEM Months 12 24 36 48 60 72 84 96 108 120 132 144 156
Miles×1,000 8 16 24 32 40 48 56 64 72 80 88 96 104 Km×1,000 13 26 39 52 65 78 91 104 117 130 143 156 169
Engine coolant At first, replace at 120,000 miles (200,000 km) or 120 months.  
After that, replace every 24,000 miles (39,000 km) or 24 months
Battery condition I I I I I I I I I I I I I
Brake lines, hoses and connections I I I I I I I I I I I I I
Disc brakes and pads I I I I I I I I I I I I I
Steering gear rack, linkage and boots / lower arm ball joint, 
upper arm ball joint IIIIIIIIIIIII
Driveshaft and boots I I I I I I I I I I I I I
Suspension mounting bolts I I I I I I I I I I I I I
Air conditioner refrigerant I I I I I I I I I I I I I
Air conditioner compressor I I I I I I I I I I I I I
Exhaust pipe and muffler I I I I I I I I I I I I I
Manual transmission fluid (if equipped) 
*1
Replace every 40,000miles or 4 years 
Intelligent variable transmission fluid (if equipped) 
*2
No check, No service required
Dual clutch transmission fluid (if equipped)
 *1
III
R: Replace or change.
I : Inspect and if necessary, adjust, correct, clean or replace.*1 : 
Manual transmission fluid/Dual clutch transmission fluid should be changed anytime they have been submerged in water.
*2 : 
Use only the specified intelligent variable transmission fluid. (Refer to “Recommended lubricants and capacities” section in 
chapter 2 or the label in the engine compartment.)