Changing the coolant
Have the coolant replaced by an authorized Kia dealer.

CAUTION
Put a thick cloth around the radiator cap before refilling the coolant to prevent the coolant from overflowing into engine parts such as the alternator.

WARNING
Coolant
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Do not use engine coolant or antifreeze in the washer fluid reservoir.
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Radiator coolant can severely obscure visibility when sprayed on the windshield and may cause loss of vehicle control or damage the paint and body trim.