2021 HYUNDAI SONATA HYBRID refrigerant type

05
5-111
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.
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 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. +

Convenient Features
5-112
WARNING
Vehicles equipped with R-1234yf
Since the refrigerant is
mildly flammable and
operated at high pressure,
the air conditioning system
should only be serviced
by trained and certified
technicians. It is important
that the correct type
and amount of oil and
refrigerant are used.
All refrigerants should be reclaimed
with proper equipment.
Venting refrigerants directly to the
atmosphere is harmful to individuals
and environment. Failure to heed these
warnings can lead to serious injuries.
Refrigerant Label (if equipped)
ODN8H070030N
You can find out which air conditioning
refrigerant is applied to your vehicle on
the label located in front of the engine
compartment.
„„Example
OHYK059002
Each symbols and specification on
the air conditioning refrigerant label is
represented as below:
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of Compressor lubricant
4. Caution
5. Flammable refrigerant
6. To require registered technician to
service air conditioning system

Index
I-10
Instrument panel fuse replacement ......................................................................8-39
Instrument panel overview
........................................................................\
...........2-5
Interior care
........................................................................\
.................................8-54
Interior features
........................................................................\
.........................5-119
Cup holder
........................................................................\
............................5-119
Sunvisor ........................................................................\
................................. 5-120
Power outlet
........................................................................\
.........................5-120
USB charger
........................................................................\
.........................5-121
Wireless cellular phone charging system
.....................................................5-122
Clock
........................................................................\
....................................5-124
Clothes hanger
........................................................................\
......................5-124
Floor mat anchor(s)
........................................................................\
..............5-125
Interior lights
........................................................................\
..............................5-78
Front lamps ........................................................................\
.............................. 5-79
Rear lamps
........................................................................\
..............................5-79
Luggage compartment lamp
........................................................................\
...5-80
Vanity mirror lamp
........................................................................\
.................5-80
Interior overview
........................................................................\
...........................2-4
J
Jack and tools
........................................................................\
..............................7-14
Jump starting
........................................................................\
.................................7-5
L
Label
........................................................................\
..................................................-
Vehicle certification label
........................................................................\
.......2-13
Tire specification and pressure label
..............................................................2-14
Refrigerant label
........................................................................\
...................5-112
Lane change signals
........................................................................\
....................5-77
Lane Following Assist (LFA)
........................................................................\
....6-108
Lane Keeping Assist (LKA)
........................................................................\
........6-57
LCD display (Type A, B)
........................................................................\
.............4-24
LCD display control
........................................................................\
...............4-24
LCD display modes
........................................................................\
................4-25
Trip computer
........................................................................\
.........................4-36