Kia Optima Hybrid 2017 Owner's Manual page 532

IF THE ENGINE OVERHEATS
If your temperature gauge indicates
overheating, you will experience a loss
of power, or hear loud pinging or knock‐
ing, the engine is probably too hot. If
this happens, you should:
1. Turn on the emergency warning
flasher and stop in a safe place.
Move the shift lever to P (Park) and
engage the parking brake.
2. If hot steam does not come out
from the engine room, carefully
open the engine room and check
whether the water pump connector
is properly engaged. If the connec‐
tor is not properly engaged, stop
the engine immediately and prop‐
erly engage the connector. Then,
turn the engine on.
3. Turn on the air conditioner.
4. If the HEV Warning light turns on
in the driver instrument cluster, or
engine coolant or hot steam emits
from the engine coolant filler, stop
the engine immediately. Then, we
recommend that you visit the near‐
est authorized Kia dealer or partner
service center for service.
If the Engine Warning light re‐
mains illuminated or the engine
coolant is not flowing out, keep the
engine running. Open the engine
hood for ventilation to help cool
down the engine.
WARNING
While the engine is running, keep
hair, hands and clothing away from
moving parts such as the fan and
drive belts to prevent injury.
5. Check whether the engine coolant
temperature is low enough by
checking its temperature. If the en‐
gine coolant level is low, please
check the connecting parts be‐
tween the radiator hose, heater
hose, and water pump for any
signs of leakage. When there is no
sign of leakage, please refill the en‐
gine coolant. If causes and signs of
engine overheating such as warning
light illumination, engine coolant
leakage, or cooling fan malfunction
are found, stop the vehicle the ear‐
liest. Then, we recommend that
you visit the nearest authorized Kia
dealer or partner service center for
service.
WARNING
Do not remove the radia‐
tor cap when the engine
is hot. This can allow
coolant to blow out of the
opening and cause seri‐
ous burns.
6. If you cannot find the cause of the
overheating, wait until the engine
temperature has returned to nor‐
mal. Then, if coolant has been lost,
carefully add coolant to the reser‐
voir to bring the fluid level in the
reservoir up to the halfway mark.
7. Proceed with caution, keeping alert
for further signs of overheating. If
overheating happens again, we rec‐
ommend that you call an author‐
ized Kia dealer.
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