Changing Coolant - Hyundai NEXO 2023 Owner's Manual

Maintenance
WARNING
The electric motor for
the cooling fan may
continue to operate
or start up when the
vehicle is not running
and can cause serious injury.
Keep hands, clothing and tools
away from the rotating fan
blades of the cooling fan.
The electric motor for the cooling fan
is controlled by coolant temperature,
refrigerant pressure and vehicle
speed. As the coolant temperature
decreases, the electric motor will
automatically shut off. This is a nor-
mal condition.
7-18

Changing Coolant

For the fuel cell stack, an exclusive
coolant must be used . When chang-
ing the fuel cell stack coolant, have
that coolant be changed by an
authorized HYUNDAI dealer accord-
ing to the Maintenance Schedule at
the beginning of this chapter.
WARNING
Do not use coolant or antifreeze
in the washer fluid reservoir.
Coolant can severely obscure
visibility when sprayed on the
windshield and may cause loss
of vehicle control resulting in an
accident.
Coolant may also cause dam-
age to paint and body trim.
NOTICE
To prevent damage to parts in the
fuel cell power module compart-
ment, put a thick towel around the
coolant cap before refilling the
coolant to prevent the coolant
from overflowing into parts in the
fuel cell power module compart-
ment.
CAUTION
Do not mix-up the caps of
device cooling coolant and
stack cooling coolant because
the fluid material is different. If
the cap is mixed, the fuel cell
system may be damage.
Have you consult an authorized
HYUNDAI dealer.