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Service bulletin PS493

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10109855
Published by NHTSA2017-08-02
Manufacturer's numberPS493
Manufacturer's date2017-03-21
NHTSA componentVISIBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

TSB: DEFOGGING LOGIC ? NORMAL OPERATION, DISABLING, AND ENABLING - Starting with 2010MY, all Kia vehicles, except Rio (JB), incorporate a defogging logic to prevent the interior windows from becoming excessively fogged. Depending on the specific model, the HVAC control head monitors ambient temperature and/or cabin humidity to determine which settings will best prevent the windows from fogging. If the system detects lower ambient temperature or higher cabin humidity, the defogging logic may automatically switch ON the A/C, and/or set the air intake mode to Fresh Air. If the user changes these settings, the defogging logic will take control again after 3 to 5 minutes, depending on the procedure in this publication.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Glass, wipers and mirrors, Heating and air conditioning

Vehicles listed
KIA CADENZA2014, 2015, 2016, 2017
KIA FORTE2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
KIA K9002015, 2016, 2017
KIA NIRO HYBRID2017 (the catalog's model; the bulletin names a series or trim of it)
KIA OPTIMA2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
KIA OPTIMA HYBRID2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
KIA RONDO2010
KIA SEDONA2010, 2011, 2012
KIA SEDONA2014, 2015, 2016, 2017
KIA SORENTO2011, 2012, 2013, 2014, 2015, 2016, 2017
KIA SOUL2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
KIA SPORTAGE2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
22V1580002022-03-15. VISIBILITY:WINDSHIELD
14V0230002014-01-27. EQUIPMENT:OTHER:LABELS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TSB_CLI049_R22026-09-02. Service bulletin. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR – ELECTRICAL A/C COMPRESSOR - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information regarding the partial repair of the Air Conditioning (A/C) compressor assembly on some 2011MY~ Optima Hybrid (TF HEV, JF HEV/PHEV), 2015MY~ Soul EV (PS EV), 2017MY~ Niro (DE HEV/PHEV/EV), 2022MY~ EV6 (CV), 2021MY~ Sorento (MQ4 HEV/PHEV), 2023MY~ Sportage (NQ5 HEV/PHEV), and 2023MY~ Niro (SG2 EV/HEV/PHEV) vehicles.
WTY031_TSB_R22026-06-18. Warranty extension. TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: MULTIFUNCTION SWITCH REPAIR (WTY031) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information associated with the ‘Multifunction Switch Warranty Extension Program’ (WTY031) to repair the multifunction switch knob on 2016-2018MY Sorento (UMa) vehicles, produced at Kia Georgia from October 27, 2014 through March 7, 2018, which may exhibit an intermittent headlamp flickering. The vehicle’s warranty for this issue will be extended from 5 years/60,000 miles to 15 years/150,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
WTY031_OWNR3022024-11-21. Warranty extension. WARRANTY EXTENSION CAMPAIGN: OWNER RENOTIFICATION (WTY031) - This document is the owner renotification advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for the multi-function switch assembly on 2016-2017 MY Sorento vehicles from 5 years / 60,000 miles to 15 years / 150,000 miles, whichever comes first, starting from the date the vehicle was first put into service. The contact points in the multi-function switch in your vehicle may become worn, and it could result in intermittent headlamp flickering.
TSB_CLI0572024-10-30. Service bulletin. TECHNICAL SERVICE BULLETIN: HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) BLOWER MOTOR FUSE RELOCATION - This bulletin provides the procedure to relocate the Heating, Ventilation, and Air Conditioning (HVAC) blower motor 40-ampere fuse on some 2016-2020MY Optima (JFa) vehicles produced from August 28, 2015 through June 23, 2020 which may experience an inoperative blower motor due to a blown multi-fuse at position #3. The HVAC system provides cooling and heating to help maintain a comfortable environment inside the vehicle cabin. The blower motor provides primary airflow for the HVAC system. Extended use of the HVAC system at high fan speeds may cause damage to the multi-fuse terminals for the HVAC blower motor circuit, which can cause the blower motor to become inoperative, resulting in reduced heat and air conditioning.
CS2308_TSB_R52024-04-03. Service bulletin. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGICUPGRADE & DECAL INSTALLATION (CS2308) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to upgrade the software logic of the In-Panel Module (IPM) or Body Control Module (BCM) system on certain 2011-2014MY Sedona (VQ) vehicles produced from March 3, 2010 through April 4, 2014 and certain 2015-2021MY Sedona (YP) vehicles produced from July 29, 2014 through July 8, 2020, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation which activates when the vehicle is locked.
CS2304_TSB_R62023-11-03. Service bulletin. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2304) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM), or Intelligent Integrated Platform Module (IPM) system on certain 2011-2015MY Sorento (XMa), 2016-2020MY Sorento (UMa), and 2021-2022MY Sorento (MQ4a) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation which activates when the vehicle is locked.
CS2306L_OWNRPS22023-08-24. Service bulletin. CUSTOMER SATISFACTION CAMPAIGN: OWNER RE-NOTIFICATION - This document is the owner re-notification advising that Kia is now making steering wheel lock devices available directly to certain Kia vehicle owners. These devices can help deter a theft attempt. We are making this device available to customers free of charge and will ship it directly to customers who place orders within eighteen (18) months from the date of this letter.
CS2306L_OWNRAM22023-08-24. Service bulletin. CUSTOMER SATISFACTION CAMPAIGN: OWNER RE-NOTIFICATION - This document is the owner re-notification advising that Kia is now making steering wheel lock devices available directly to certain Kia vehicle owners. These devices can help deter a theft attempt. We are making this device available to customers free of charge and will ship it directly to customers who place orders within eighteen (18) months from the date of this letter.
CS2305L_OWNRYD22023-08-24. Service bulletin. CUSTOMER SATISFACTION CAMPAIGN: OWNER RE-NOTIFICATION - This document is the owner re-notification advising that Kia is now making steering wheel lock devices available directly to certain Kia vehicle owners. These devices can help deter a theft attempt. We are making this device available to customers free of charge and will ship it directly to customers who place orders within eighteen (18) months from the date of this letter.
CS2305L_OWNRTD22023-08-24. Service bulletin. CUSTOMER SATISFACTION CAMPAIGN: OWNER RE-NOTIFICATION - This document is the owner re-notification advising that Kia is now making steering wheel lock devices available directly to certain Kia vehicle owners. These devices can help deter a theft attempt. We are making this device available to customers free of charge and will ship it directly to customers who place orders within eighteen (18) months from the date of this letter.