System Maintenance - Hyundai Elantra 2024 Owner's Manual

Convenience features
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
recirculated air position 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 windows
and sunroof closed.
• During air conditioning system
operation, you may occasionally notice
a slight change in engine speed as the
air conditioning compressor cycles.
This is a normal system operation
characteristic.
• Use the air conditioning system every
month only for a few minutes to ensure
maximum system performance.
• When using the air conditioning
system, you may notice clear water
dripping (or even puddling) on the
ground under the passenger side of the
vehicle. This is a normal system
operation characteristic.
• If you operate the air conditioner
excessively, the difference between the
temperature of the outside air and that
of the windshield may cause the outer
surface of the windshield to fog up,
causing loss of visibility. In this case, set
the mode selection button to the
position and set the fan speed control
knob to the lowest speed setting.
5-86

System maintenance

Cabin air filter
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 inspected
by an authorized HYUNDAI dealer.
Checking the amount of air
conditioner refrigerant and
compressor lubricant
If the amount of refrigerant is too low or
too high, the performance of the air
conditioning is reduced.
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.