2022 HYUNDAI IONIQ 5 cooling system

01
1-35
ONE1Q011041
6. Check if the charging connector
indicator light () of the high voltage
battery in the instrument cluster is
turned ON. Charging connector is not
active when the charging connector
indicator light (
) is OFF.
When the charging connector is not
connected properly, reconnect the
charging cable to charge it again.
During cold weather, DC charging
may not be available to prevent high
voltage battery degradation.
Information
To control the temperature of the high
voltage battery while charging or when
the battery temperature is high, the air
conditioner is used to cool down the
battery. It may generate noise or vibration
from operation of the air conditioner
compressor and cooling fan, but it is a
normal condition when charging the high
voltage battery. Also, the air conditioner’s
performance may be degraded due to
operation of the cooling system to charge
the high voltage battery. This is a normal
condition.
Information
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the Start/Stop button in the ON/START
position, for you safety, start charging
when the Start/Stop button is in the
OFF position and the vehicle shifted to P
(Park). After charging has started, you
can use electrical components such as the
radio by pressing the Start/Stop button to
the ACC or ON position.
During charging, the gear cannot be
shifted from P (Park) to any other gear.
ONE1Q011059E
7. After charging has started, the
estimated charging time is displayed
on the instrument cluster for about 1
minute.
If you open the driver seat door while
charging, the estimated charging time
is also displayed on the instrument
cluster for about 1 minute.

01
1-41
Information
To control the temperature of the high
voltage battery while charging, the air
conditioner is used to cool down the
battery. It may generate noise or vibration
from operation of the air conditioner
compressor and cooling fan, but it is a
normal condition when charging the high
voltage battery. Also, the air conditioner’s
performance may be degraded due to
operation of the cooling system to charge
the high voltage battery. This is a normal
condition.
Information
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the Start/Stop button in the ON/START
position, for you safety, start charging
when the Start/Stop button is in the
OFF position and the vehicle shifted to P
(Park). After charging has started, you
can use electrical components such as the
radio by pressing the Start/Stop button to
the START or ON position.
During charging, the gear cannot be
shifted from P (Park) to any other gear.
ONE1Q011058E
10. After charging has started, the
estimated charging time is displayed
on the instrument cluster for about 1
minute.
If you open the driver seat door while
charging, the estimated charging time
is also displayed on the instrument
cluster for about 1 minute. When
scheduled charging or scheduled
air conditioner/heater is set, the
estimated charging time is displayed
as “--” .
Information
Depending on the condition and durability
of the high voltage battery, charger
specifications, and ambient temperature,
the time required for charging the battery
may vary.
Checking Charging Status
When charging the high voltage battery,
the charge level can be checked from
outside the vehicle.
For more details, refer to ‘Charge
Indicator Lamp for Electric Vehicle’ in
this chapter.

Convenience Features
5-102
Manual Temperature Control
Mode
The heating and cooling system can
be controlled manually by selecting
functions other than AUTO. In this case,
the system works sequentially according
to the order of the functions selected.
When selecting any other functions
except AUTO while using automatic
operation, the functions not selected will
be controlled automatically.
1. Start the vehicle.
2. Set the mode to the desired position.
To improve the effectiveness of
heating and cooling, select the mode
according to the following:
- Heating:
- Cooling:
3. Set the temperature control to the
desired value.
4. Set the air intake control to Fresh or
Recirculation mode.
5. Set the fan speed control to the
desired speed.
6. If air conditioning is desired, turn the
air conditioning system on.
7. Select AUTO to revert back to full
automatic control of the system.
Mode selection
„Type A
ONE1051103
„Type B
ONE1051117
Air flow direction
Touch the air flow direction icon (1) or (2)
in the infotainment screen to select the
desired air flow direction. The selected
air flow direction will be displayed on the
infotainment screen.

Convenience Features
5-110
System Operation
Cooling / Ventilation
1. Select the Face Level () mode in the
infotainment screen.
2. Set the air intake control to fresh or
recirculation mode.
3. Set the temperature to the desired
position.
4. Set the fan speed to the desired
speed.
Heating
1. Select the Floor Level () mode in
the infotainment screen.
2. Set the air intake control to fresh or
recirculation mode.
3. Set the temperature to the desired
position.
4. Set the fan speed to the desired
speed.
5. If desired, turn the air conditioning ON
with the temperature set high in order
to dehumidify the air before it enters
into the cabin.
If the windshield fogs up, select the Front
Defrost (
) mode.
Operation Tips

[To keep dust or unpleasant fumes
from entering the vehicle through the
ventilation system, temporarily set the
air intake control to the recirculation
mode. Return the control to the
Recirculation mode to the Fresh mode
when the unpleasant air outside has
diminished. This will help keep the
driver alert and comfortable.

[To help prevent the inside of the
windshield from fogging, set the air
intake control to fresh mode and the
fan speed to the desired position, turn
on the air conditioning system, and
adjust the temperature control to the
desired temperature.
Air conditioning
Your HYUNDAI Vehicle air conditioning
system is filled with R-1234yf refrigerant.
1. Touch the [CLIMATE] icon to display
climate information the infotainment
screen.
2. Select A/C icon (indicator light ON)
in the climate information screen to
activate the air-condition.
3. Set the temperature low.
4. Set the direction of air flow by
touching the mode selection icon.
5. Touch the HEAT icon (indicator light
OFF) to turn on the air-condition.
When maximum cooling is desired, set
the temperature to the lowest position,
then set the fan speed control to the
highest setting.
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
recirculation mode to fresh mode.

[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 windows
and vision roof closed.

[Use the air conditioning system
every month only for a few minutes
to ensure maximum system
performance.

[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 to the

position and fan speed control to the
lowest speed.

05
5-111
System Maintenance
Cabin air filter
OHI048581L[A] : Outside air, [B] : Recirculated air
[C] : Cabin 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.

06
6-75
WARNING
To prevent serious or fatal injury:

[Do not get out of the vehicle without
the parking brake firmly set. If you
have left the vehicle running, the
vehicle can move suddenly. You and
others could be seriously or fatally
injured.

[Do not apply the accelerator pedal to
hold the vehicle on an uphill.
Driving the vehicle after it has been
parked on a hill
1. With the gear in P (Park), apply your
brakes and hold the brake pedal down
while you:

[Start your vehicle;

[Shift into gear; and

[Release the parking brake.
2. Slowly remove your foot from the
brake pedal.
3. Drive slowly until the trailer is clear of
the chocks.
4. Stop and have someone pick up and
store the chocks.
Maintenance when Towing a
Trailer
Your vehicle will need service more
often when you regularly pull a trailer.
Important items to pay particular
attention to include reduction gear fluid,
axle lubricant and cooling system fluid.
Brake condition is another important
item to frequently check. If you’re
trailering, it’s a good idea to review these
items before you start your trip. Don’t
forget to also maintain your trailer and
hitch. Follow the maintenance schedule
that accompanied your trailer and check
it periodically. Preferably, conduct the
check at the start of each day’s driving.
Most importantly, all hitch nuts and bolts
should be tight.
NOTICE
To prevent vehicle damage:

[Due to higher load during trailer
usage, overheating might occur on
hot days or during uphill driving.

[When towing check reduction gear
fluid more frequently.

9-8
Maintenance
Normal Maintenance Schedule The following maintenance services must be performed to ensure good vehicle performance.
Keep receipts for all vehicle services to protect your warranty. Where both mileage and time are shown, the frequency of
service is determined by whichever occurs first.
MAINTENANCE
INTERVALS
MAINTENANCE
ITEMMonths
4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96
Miles×1,000
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Km×1,000
8 16 24 32 40 48 56 64 75 80 88 96 104 112 120 128 136 144 152 160 168 176 184 192
Cooling system Inspect every 15,000 miles or 12 months
Rotate Tires
(Includes Tire Pressure and
Tread Wear Inspection)Rotate every 5,000 miles (8,000 km)
Replace Climate Control Air
Filter (For Evaporator and
Blower Unit)RR
RRRRRR
Coolant *
1
StandardAt first, replace 120,000 miles (200,000 km) or 120 months.
After that, replace every 25,000 miles (40,000 km) or 24 month.
Low
ConductivityReplace every 35,000 miles (60,000 km) or 36 months *
2
12V auxiliary battery condition I I
IIIIII
Brake lines, hoses, and connections I I
IIIIII
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.*1 :
When replacing or adding coolant, visit an authorized HYUNDAI dealer.
*2 :
For your convenience, it can be replaced prior to it’s interval when you do maintenance of other items.

09
9-11
Cooling System
Check cooling system components, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
Coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
Reduction Gear Fluid
The reduction gear fluid should be
inspected according to the intervals
specified in the maintenance schedule.
Brake Hoses and Lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
Brake Fluid
Check the brake fluid level in the brake
fluid reservoir. The level should be
between the MIN and the MAX marks
on the side of the reservoir. Use only
hydraulic brake fluid conforming to DOT
4 specification.
Brake Discs, Pads, Calipers and
Rotors
Check the pads, the disc, and the rotor
for any excessive wear-out. Inspect
calipers for any fluid leakage.
Suspension Mounting Bolts
Check the suspension connections for
looseness or damage. Retighten to the
specified torque.
Steering Gear Box, Linkage &
Boots/Lower Arm Ball Joint
With the vehicle stopped and the vehicle
off, check for excessive free-play in the
steering wheel. Check the linkage for
bends or damage. Check the dust boots
and ball joints for deterioration, cracks,
or damage.
Replace any damaged parts.
Drive Shafts and Boots
Check the drive shafts, boots and clamps
for cracks, deterioration, or damage.
Replace any damaged parts and, if
necessary, repack the grease.
Air Conditioning Refrigerant
Check the air conditioning lines and
connections for leakage and damage.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS