# 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.

- Type: Service bulletin
- NHTSA id: 10109855
- Published by NHTSA: 2017\-08\-02
- Manufacturer's number: PS493
- Manufacturer's date: 2017\-03\-21
- NHTSA component: VISIBILITY; 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10109855-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10109855-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

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

## Vehicles listed

- 2014 to 2017 KIA CADENZA
- 2010 to 2017 KIA FORTE
- 2015 to 2017 KIA K900
- 2017 KIA NIRO HYBRID
- 2010 to 2017 KIA OPTIMA
- 2011 to 2016 KIA OPTIMA HYBRID
- 2010 KIA RONDO
- 2010 to 2012 KIA SEDONA
- 2014 to 2017 KIA SEDONA
- 2011 to 2017 KIA SORENTO
- 2010 to 2017 KIA SOUL
- 2010 to 2017 KIA SPORTAGE

## Recalls for the same vehicles and component

- [22V158000](/recalls/nhtsa/22V158000.md), 2022-03-15: VISIBILITY:WINDSHIELD
- [14V023000](/recalls/nhtsa/14V023000.md), 2014-01-27: EQUIPMENT:OTHER:LABELS

## Other bulletins for the same vehicles and component

- [TSB\_CLI049\_R2](/bulletins/11036628.md), 2026-09-02, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. 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\_R2](/bulletins/11033996.md), 2026-06-18, Warranty extension: EXTERIOR LIGHTING; ELECTRICAL SYSTEM; VISIBILITY/WIPER. 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\_OWNR302](/bulletins/11010704.md), 2024-11-21, Warranty extension: EXTERIOR LIGHTING; ELECTRICAL SYSTEM; VISIBILITY/WIPER. 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\_CLI057](/bulletins/11009492.md), 2024-10-30, Service bulletin: VISIBILITY/WIPER. 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\_R5](/bulletins/10251970.md), 2024-04-03, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. 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\_R6](/bulletins/10243924.md), 2023-11-03, Service bulletin: EQUIPMENT:ELECTRICAL:ANTI\-THEFT DEVICES; ELECTRICAL SYSTEM. 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\_OWNRPS2](/bulletins/10241169.md), 2023-08-24, Service bulletin: STEERING; EQUIPMENT. 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\_OWNRAM2](/bulletins/10240741.md), 2023-08-24, Service bulletin: STEERING:COLUMN LOCKING:ANTI\-THEFT DEVICE; EQUIPMENT. 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\_OWNRYD2](/bulletins/10240739.md), 2023-08-24, Service bulletin: STEERING:COLUMN LOCKING:ANTI\-THEFT DEVICE; EQUIPMENT. 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\_OWNRTD2](/bulletins/10240738.md), 2023-08-24, Service bulletin: EQUIPMENT:ELECTRICAL:ANTI\-THEFT DEVICES; EQUIPMENT. 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.

JSON: [/v1/bulletins/10109855](/v1/bulletins/10109855)

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