Engine Coolant/Battery System Coolant; Checking The Coolant Level - Hyundai Kona Hybrid 2023 Owner's Manual

Maintenance
Engine coolant/Battery
system coolant
The high pressure cooling system has a
reservoir filled with year-round antifreeze
coolant.
Check the antifreeze protection and
coolant level at least once a year, before
the winter season or before traveling to a
colder climate.

Checking the coolant level

Engine Coolant
2C_EngineCoolant
Battery system Coolant
2C_HEVCoolant
Information
Battery system : Inverter, HSG, LDC
9-26
Check the condition and connections of
all cooling system hoses and heater
hoses. Replace any swollen or
deteriorated hoses.
The coolant level should be filled between
the MAX and the MIN marks on the side of
the coolant reservoir when the engine is
cool.
If the coolant level is low, add enough
distilled (deionized) water mixed with
antifreeze to bring the level to the MAX
mark. If frequent additions are required,
we recommend that you contact an
authorized HYUNDAI dealer.
WARNING
WL_RadiatorHotWarning
Never remove the engine coolant
reservoir cap, radiator cap, or drain plug
while the engine and radiator are hot. Hot
coolant and steam may blow out under
pressure, causing serious injury.
Turn the vehicle off and wait until the
engine cools down. Use extreme care
when removing the engine coolant cap
and radiator cap. Wrap a thick towel
around it, and turn it counterclockwise
slowly to the first stop. Step back while
the pressure is released from the cooling
system. When you are sure all the
pressure has been released, press down
on the cap, using a thick towel, and
continue turning counterclockwise to
remove it.