# Service bulletins for the 2018 Kia Forte

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.

100 bulletins from NHTSA, as of 2026-10-19.

- [CS2312\_TSB\_R2](/bulletins/11034003.md), 2026-06-18, Service bulletin: STRUCTURE:BODY. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION \(CS2312\) \- 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 to install a Theft Deterrent Ignition Cylinder Protector on certain 2010\-2022MY Kia vehicles outlined on page 20, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit \(IBU\) / Body Control Module \(BCM\) did receive the Anti\-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.
- [PI2106\_OWNR\_501](/bulletins/11030378.md), 2026-04-01, Other: ELECTRICAL SYSTEM; ENGINE. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION \(PI2106 FLIGHT 501\) \- This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2017\-2018 MY Kia Forte vehicles equipped with 2.0\-liter Nu GDI engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit \(“ECU”\).
- [TSB\_CS2312\_R1](/bulletins/11028908.md), 2026-02-19, Service bulletin: STRUCTURE:BODY. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION \(CS2312\) \- 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 to install a Theft Deterrent Ignition Cylinder Protector on certain 2010\-2022MY Kia vehicles outlined on page 20, which may not have been equipped with an immobilizer and whole Integrated Body control Unit \(IBU\) / Body Control Module \(BCM\) did receive the Ant\-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.
- [CS2312\_OWNR](/bulletins/11026980.md), 2026-01-05, Other: STRUCTURE:BODY. CUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION \(CS2312\) \- This document is the owner notification advising that Kia is conducting Customer Satisfaction Campaign. A software upgrade that addresses the social media theft method has been made available to owners of eligible Kia model vehicles free of charge at authorized Kia dealers since 2023. In addition to the anti\-theft software, a new zinc\-reinforced ignition cylinder protector hardware upgrade has been developed and can be installed at the ignition cylinder location to provide additional protection against the social media theft method. Because the subject Kia vehicles were not factory\-equipped with an engine immobilizer and were previously eligible for the software upgrade, these vehicles are eligible until March 31, 2027, to have the ignition cylinder protector installed—if requested—at no cost through an authorized Kia dealership. \(Mailing of these notifications to vehicle owners will be completed from December 17, 2025 through February 27, 2026\)
- [TSB\_CS2312](/bulletins/11026825.md), 2025-12-24, Service bulletin: STRUCTURE:BODY. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION \(CS2312\) \- This bulletin provides information to install a Theft Deterrent Ignition Cylinder Protector on certain 2010\-2022MY Kia vehicles outlined on page 19, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit \(IBU\) / Body Control Module \(BCM\) did receive the Anti\-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.
- [PS797](/bulletins/11026698.md), 2025-12-18, Other: BACK OVER PREVENTION: WARNINGS. PITSTOP: TECHNICAL OPERATIONS: EXTERNAL DAMAGE TO ULTRASONIC SENSOR: This Pitstop provides information related to Parking Distance Warning \(PDW\) alerts and repairs involving ultrasonic sensors. The PDW system alerts the driver while parking, by calculating distance based on the difference in signal transmission and reception times between the vehicle \(ultrasonic sensor\) and an object. The membrane film of the ultrasonic sensor is used for object detention and can be damaged by stone chips or foreign substances while driving. Damage to the cover of the ultrasonic sensor can also lead to damage to the internal circuit. As a result of this external damage, the PDW system may not receive the proper signal from the ultrasonic sensor. In some cases, the system may cause a false alarm, no alert, or phantom warnings by a “Warning Lamp’ to be displayed on the cluster. The ultrasonic sensor membrane film should be always inspected for external damage and if any part replacement should be treated as a general repair, not as a warranty claim repair for this concern. \(Please note that this Pitstop only applies to models/trims that are equipped with the ultrasonic sensors.\)
- [PI2106\_OWNR\_401](/bulletins/11021640.md), 2025-08-06, Other: ELECTRICAL SYSTEM; ENGINE. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION \(PI2106\) \- This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2017\-2018 MY Kia Forte vehicles equipped with 2.0\-liter Nu GDI engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit \(“ECU”\).
- [TSB\_TRA046\_R5](/bulletins/11017172.md), 2025-04-23, Service bulletin: POWER TRAIN. TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE \- 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 relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, and the transmission oil cooler is transferred to the new transmission.
- [TSB\_ENG222\_R8](/bulletins/11017109.md), 2025-04-18, Service bulletin: ENGINE. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES \- 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 on diagnosing and/or repairing some 2011\-2024MY vehicles \(refer to the table on pages 9 and 10 for applicable models and engine\), which may exhibit a symptom of excessive oil consumption.
- [TSB\_ENG222\_R7](/bulletins/11014912.md), 2025-03-04, Service bulletin: ENGINE. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES \- 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 on diagnosing and/or repairing some 2011\-2024MY vehicles \(refer to the tables on pages 8\-9 for applicable models and engine\), which may exhibit a symptom of excessive oil consumption.
- [PI2106\_OWNR\_301](/bulletins/11011217.md), 2024-12-04, Other: ENGINE. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION \(PI2106\) \- This document is the owner renotification advising that Kia is conducting an important Product Improvement Campaign to perform a software update on 2017\-2018 MY Kia Forte vehicles equipped with 2.0\-liter Nu GDI engines to protect the engine from excessive connecting rod bearing damage.
- [PI2106YZ\_TSB\_R1](/bulletins/11010515.md), 2024-11-14, Service bulletin: ENGINE. TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 \(PI2106Y/Z\) \- 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 related to the Technical Service Bulletin previously published \(PI2106\) titled “Nu 2.0L GDI \- Knock Sensor Detection System ECU Logic Improvement”. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below return to the dealer with Diagnostic Trouble Code \(DTC\) P1326 \(Knock Signal Range/Performance\).
- [CS2305\_TSB\_R5](/bulletins/11001596.md), 2024-06-13, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI\-THEFT S/W LOGIC UPGRADE \& DECAL INSTALLATION \(CS2305\) \- 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 \(BCM\) system on certain 2014\-2018MY Forte \(YD\), 2017\-2018MY Forte \(YDm\), and 2019\-2021MY Forte \(BDm\) vehicles produced within the dates outlined in page 13, 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 with the use of the key fob.
- [TSB\_TRA046\_R4](/bulletins/11000787.md), 2024-06-04, Service bulletin: POWER TRAIN. This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced.
- [PI2106\_OWNR\_201](/bulletins/10252731.md), 2024-05-06, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION \(PI2106\) \- This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2017\-2018 MY Kia Forte vehicles equipped with 2.0\-liter engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit \("ECU"\).
- [CS2305\_TSB\_R4](/bulletins/10245167.md), 2023-12-05, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:CONTROL MODULE. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI\-THEFT S/W LOGIC UPGRADE \& DECAL INSTALLATION \(CS2305\) \- 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 \(BCM\) system on certain 2014\-2018MY Forte \(YD\), 2017\-2018MY Forte \(YDm\), and 2019\-2021MY Forte \(BDm\) vehicles produced within the dates outlined in page 13, 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.
- [CS2305B\_OWNR2](/bulletins/10240560.md), 2023-08-24, Service bulletin: ELECTRICAL SYSTEM. CUSTOMER SATISFACTION CAMPAIGN: OWNER RE\-NOTIFICATION \- This document is the owner re\-notification advising that Kia has developed a software upgrade that can be installed on the vehicle to restrict the operation of the vehicle's ignition system should a locked vehicle be the subject of a break\-in and theft attempt without the key. This software upgrade will be available to the customer free of charge for eighteen \(18\) months from the date of the original letter. When the software upgrade is complete, Kia will also provide the customer with window stickers that can be applied to the vehicle to discourage a break\-in.
- [CS2305\_TSB\_R3](/bulletins/10239715.md), 2023-08-02, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI\-THEFT S/W LOGIC UPGRADE \& DECAL INSTALLATION \(CS2305\) \- 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 \(BCM\) system on certain 2014\-2018MY Forte \(YD\), 2017\-2018MY Forte \(YDm\), and 2019\-2021MY Forte \(BDm\) vehicles produced within the dates outlined in page 13, 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.
- [SC264\_TSB\_R1](/bulletins/10238479.md), 2023-07-05, Service bulletin: STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; STRUCTURE. VOLUNTARY SERVICE CAMPAIGN \- APPLICATION OF ADDITIONAL ANTI\-CORROSION MATERIAL \(SC264\): 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 to apply additional anti\-corrosion material to the underbody components on certain 2012\-2017MY Rio \(UB\) and 2017\-2018MY Forte \(YD/YDm\) vehicles produced within the date ranges shown below and originally sold or currently registered in one of the 28 states where heavy amounts of road salt are used. The 28 states where heavy amounts of road salt are used are: AK, CT, DC, DE, IA, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, ND, NE, NH, NJ, NY, OH, PA, RI, SD, UT, VT, WI and WV. Corrosion can occur due to a combination of environmental conditions and lack of proper underbody maintenance, especially on vehicles in states where heavy amounts of road salt are used if the materials used for ice/snow removal are not regularly flushed from the underbody of the vehicle.
- [PS610\_R1](/bulletins/10238218.md), 2023-07-01, Service bulletin: ELECTRICAL SYSTEM; SEAT BELTS. PITSTOP: SRS DTC B176200 AND/OR B168400 \- This pitstop has been revised to include additional information. New/revised sections of this pitstop are indicated by a black bar in the margin area. This Pitstop provides information regarding a possible mismatch of a SRSCM \(Supplemental Restraint System Control Module\) and driver seat belt buckle that may set the SRS DTC\(s\) B168400 and/or B176200 on the models listed below. When diagnosing a vehicle that has been in an accident and/or has recently had a superseded SRSCM replaced, it may be necessary to inspect and replace the driver seat belt buckle with the latest production P/N listed in EPC. Older production driver seat belt buckles have a 4 pin connector and may no longer be compatible with the superseded SRSCM. Only the SRSCM is superseded; the driver seat belt buckle is not superseded.
- [CS2305\_TSB\_R2](/bulletins/10236651.md), 2023-05-30, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION ANTI\-THEFT S/W LOGIC UPGRADE \& DECAL INSTALLATION \(CS2305\) \- 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 \(BCM\) system on certain 2014\-2018MY Forte \(YD\), 2017\-2018MY Forte \(YDm\), and 2019\-2021MY Forte \(BDm\) vehicles produced within the dates outlined in page 13, 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.
- [SC264\_QA](/bulletins/10236371.md), 2023-05-30, Service bulletin: STRUCTURE. VOLUNTARY SERVICE CAMPAIGN: QUESTION AND ANSWER \- This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Service Campaign \(SC264\).
- [SC264\_DPSM](/bulletins/10236370.md), 2023-05-30, Service bulletin: STRUCTURE. VOLUNTARY SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO \- This document is the announcement to the dealer Parts and Service Managers that Kia is conducting a Voluntary Service Campaign, as a preventive measure, to apply anti\-corrosion material to the underbody components of certain 2017\-2018 MY Forte vehicles manufactured from January 9, 2016 through July 27, 2018 and 2012\-2017 MY Rio vehicles manufactured from June 21, 2011 through March 31, 2017 that were originally sold in or are currently registered in one of the 28 states with high road salt usage.
- [SC264\_DP](/bulletins/10236369.md), 2023-05-30, Service bulletin: STRUCTURE. VOLUNTARY SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO \- This document is the announcement to the dealer principals that Kia is conducting a Voluntary Service Campaign, as a preventive measure, to apply anti\-corrosion material to the underbody components of certain 2017\-2018 MY Forte vehicles manufactured from January 9, 2016 through July 27, 2018 and 2012\-2017 MY Rio vehicles manufactured from June 21, 2011 through March 31, 2017 that were originally sold in or are currently registered in one of the 28 states with high road salt usage.
- [SC264\_TSB](/bulletins/10236657.md), 2023-05-26, Service bulletin: STRUCTURE. VOLUNTARY SERVICE CAMPAIGN: APPLICATION OF ADDITIONAL ANTI\-CORROSION MATERIAL \(SC264\) \- This bulletin provides information to apply additional anti\-corrosion material to the underbody components on certain 2012\-2017MY Rio \(UB\) and 2017\-2018MY Forte \(YD/YDm\) vehicles produced within the date ranges shown below and originally sold or currently registered in one of the 28 states where heavy amounts of road salt are used. The 28 states where heavy amounts of road salt are used are: AK, CT, DC, DE, IA, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, ND, NE, NH, NJ, NY, OH, PA, RI, SD, UT, VT, WI and WV. Corrosion can occur due to a combination of environmental conditions and lack of proper underbody maintenance, especially on vehicles in states where heavy amounts of road salt are used if the materials used for ice/snow removal are not regularly flushed from the underbody of the vehicle.

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