PS498

Service Bulletin Details

Public Details for: PS498

Pitstop: anti-condensation logic ? Normal operation, disabling, and enabling - some kia vehicles starting with 2016my and all kia vehicles, after and including 2017my, incorporate an anti-condensation logic to prevent the interior windows f


- 2017 - 2016 -

GROUP
Climate
NUMBER
PS498
SUBJECT:
MODEL
2016MY~
Rio (UB),
Sorento (UMa),
Sedona (YP)
2017MY~
All Other Models
DATE
May 2017
ANTI-CONDENSATION LOGIC – NORMAL
OPERATION, DISABLING, AND ENABLING
Some Kia vehicles starting with 2016MY and all Kia vehicles, after and including 2017MY,
incorporate an anti-condensation logic to prevent the interior windows from becoming
excessively fogged. The HVAC control head in these vehicles monitors ambient temperature
to determine which settings will best prevent the windows from fogging.
If the system detects lower ambient temperature (about 60°F or below), the anti-condensation
logic may automatically set the air intake mode to FRESH, depending on the other HVAC
settings.
The anti-condensation logic is also designed to ensure that air intake mode is set to FRESH,
as long as all conditions are met. If the user changes the air intake to RECIRCULATION, the
anti-condensation logic will take control again after 5 minutes, and change the air intake mode
back to FRESH. If this results in an undesired operation, the logic may be enabled or disabled
by following the procedure below.
 NOTICE
Disabling the anti-condensation logic may result in excessively fogged windows, and
is not recommended under normal circumstances. Only disable this logic if the
customer insists. Inform the customer that the most effective way to prevent window
fog is to maintain a clean windshield, have A/C ON and air intake set to FRESH.
2016MY~ Rio (UB), Sorento (UM), Sedona (YP)
1. Turn the ignition to the ON position.
2. Turn the mode selection to the FACE (
) position.
3. While holding the A/C Button, press the RECIRCULATION (
) button five (5) times
within three (3) seconds.
4. The RECIRCULATION (
) indicator light will blink three (3) times to signal that the
anti-condensation logic has been disabled, or blink six (6) times to signal that the anticondensation logic has been enabled.
The anti-condensation logic will remain activated or deactivated unless the battery is
discharged or disconnected. The anti-condensation logic is enabled by default when the
battery is reconnected.
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17MY~ All Models Except Rio (UB), Sorento (UM) & Sedona (YP)
1. Turn the ignition to the ON position
2. Turn the mode selection to the FACE (
) position
3. Hold the RECIRCULATION (
) button for more than 5 seconds
4. The RECIRCULATION (
) indicator light will blink 3 times to signal that the anticondensation logic has been disabled, or blink 6 times to signal that the anticondensation logic has been enabled.
The anti-condensation logic will remain activated or deactivated unless the battery is
discharged or disconnected. The anti-condensation logic is enabled by default when the
battery is reconnected.
 NOTICE
If the vehicle is equipped with a sunroof, the system may still take control of the air
intake setting under certain conditions, even with the defogging logic disabled. Refer
to PS472 for more information.
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