Kia 2016 forte Owner's Manual page 204

If the battery has been discharged or
disconnected, it resets to the defog
logic status.
Auto defogging system (Only for
automatic climate control system,
if equipped)
Auto defogging reduces the probabil-
ity of fogging up the inside of the
windshield by automatically sensing
the moisture inside the windshield.
The auto defogging system operates
when the heater or air conditioning is
on.
Features of your vehicle
This indicator illuminates
when the auto defogging
system senses the mois-
ture inside the windshield
and operates.
If more moisture is in the vehicle,
higher steps operate as follows. For
example, if auto defogging does not
defog inside the windshield at step 1
Outside air position, it tries to defog
again at step 2 Blowing air toward
the windshield.
OYDDCL2029
Step 1 : Outside air position
Step 2 : Blowing air toward the wind-
shield
Step 3 : Increasing air flow toward
the windshield
Step 4 : Operating the air conditioning
Step 5 : Maximizing the air condi-
tioning
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