Question about 2003 Hyundai Santa Fe

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Cabin heat and defroster do not work correctly at highway speeds

Cabin heater and defroster works properly during warm up...when speed gets up to highway speeds the windshield begins to fog up and cabin temp drops.

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That easy! i was a master tech 4 hyundai and other manufacturers, first thing change your pollen filter. if syptoms still pursist please feel free to contact myself,

many thanks

Dominic Hill

Posted on Dec 11, 2008

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Your thermostat may be stuck open cahec it and replace it
dont forget to rankme and my solution

Posted on Dec 11, 2008

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