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Service bulletins for the 2021 Kia Rio

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.

59 on file from NHTSA, as of 2026-10-19.

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Only bulletins with type: Service bulletin are shown. Show all

Bulletins, newest first
CS2312_TSB_R22026-06-18. 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.
CS2311_TSB_R42026-06-12. Service bulletin. STRUCTURE:BODY. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION: CYLINDER PROTECTOR & DECAL INSTALLATION (CS2311) - 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) are not able to 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 that are not equipped with an immobilizer, 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.
TSB_ELE4222026-06-03. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE.KIA.COM - This bulletin provides information and service procedures for updating the infotainment systems on applicable Kia vehicles using the Kia Navigation Updater available at update.kia.com. The software update may improve system performance, enhance existing features, and apply the latest operating software for supported vehicles (2021-2026MY All Models).
TSB_CS2312_R12026-02-19. 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.
TSB_CS23122025-12-24. 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.
TSB_TRA046_R52025-04-23. 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_R82025-04-18. 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_ELE3782025-03-26. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: KIA CONNECT MODEM RESET (SA611) - This bulletin outlines the procedure for resetting the modem in certain 2016-2025MY Kia vehicles listed on page 3 that are equipped with Kia Connect Services. The affected vehicles may encounter the following issues: remote Start/Climate Control function not working, vehicle Status on the Kia Access App not updating, connected routing not functioning properly.
TSB_ENG222_R72025-03-04. 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.
TSB_ELE347_R12024-12-20. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: DISPLAY AUDIO 2.0V/AVN5W SOFTWARE UPDATE - 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 update the software on Display Audio 2.0 (D2V) and AVN 5.0 Wide (AVN5W) head units on certain 2021-2023MY Kia vehicles (refer to pages 5 and 16). The affected vehicles may experience Apple CarPlay®/Android Auto™ phone projection connectivity-related concerns.
CS2311_TSB_R32024-10-23. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY; STEERING. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR & DECAL INSTALLATION (CS2311) - 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 15, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit (IBU) / Body Control Module (BCM) are not able to 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 that are not equipped with an immobilizer, 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.
TSB_ELE3472024-07-31. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: DISPLAY AUDIO 2.0V/AVN5W SOFTWARE UPDATE - This bulletin provides information to update the software on Display Audio 2.0 (D2V) and 5th Generation AVN Wide (AVN5W) head units on certain 2021-2023MY Kia vehicles. The affected vehicles may experience Apple CarPlay®/Android Auto™ phone projection connectivity-related concerns.
TSB_TRA1092024-07-18. Service bulletin. POWER TRAIN. TECHNICAL SERVICE BULLETIN: IVT OIL PRESSURE SENSOR REPLACEMENT: This bulletin provides information to replace the Intelligent Variable Transmission (IVT) Oil Pressure Sensor (OPS) on some 2018-2024MY vehicles listed on page 3 equipped with IVT. The affected vehicles may exhibit a malfunction indicator lamp (MIL) illuminated on the instrument cluster with DTCs P084500, P084600, and/or P0867XX present with no drivability concerns due to a failed IVT oil pressure sensor.
CS2307_TSB_R82024-06-13. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2307) - 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 some 2012-2017MY Rio (UB) produced from May 30, 2011 through March 31, 2017 and 2018-2021MY Rio (SC) vehicles produced from June 1, 2017 through October 25, 2021, 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_R42024-06-04. 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.
CS2311_TSB_R22024-03-02. Service bulletin. ELECTRICAL SYSTEM; STEERING; STRUCTURE. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR & DECAL INSTALLATION (CS2311) - 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 15, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit (IBU) / Body Control Module (BCM) are not able to 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 that are not equipped with an immobilizer, 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.
TSB_ELE303_R22024-03-02. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE NON-RESPONSIVE RADIO ICON (AM, FM, SXM) - 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 update the software on 5th Generation AVN wide on certain 2020-2024MY Kia vehicles (refer to model list on page 3) to remedy a 'non-responsive' or 'inoperative' radio (FM, AM, SXM, etc. ) concern. The affected AVN unit on the vehicles may not respond when pressing the 'RADIO' hard key/button on the AVN unit or when selecting the 'RADIO' icon on the AVN menu screen.
CS2311A_OWRNSC2024-01-06. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM. CUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification advising that Kia now has an additional vehicle modification available for installation to help deter or thwart attempted thefts. This modification consists of a theft deterrent ignition cylinder protector and will be available to you free of charge for eighteen (18) months from the date of this letter.
CS2311_TSB_R12024-01-06. Service bulletin. STRUCTURE; STRUCTURE:CRITICAL FASTENERS; STEERING; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; STEERING:COLUMN LOCKING:ANTI-THEFT DEVICE. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR & DECAL INSTALLATION (CS2311) - 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 15, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit (IBU) / Body Control Module (BCM) are not able to 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 that are not equipped with an immobilizer, 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.
CS2311_TSB2024-01-06. Service bulletin. STRUCTURE; STEERING; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; STEERING:COLUMN LOCKING:ANTI-THEFT DEVICE; STRUCTURE:CRITICAL FASTENERS. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR & DECAL INSTALLATION (CS2311) - This bulletin provides information to install a Theft Deterrent Ignition Cylinder Protector on certain 2010-2022MY Kia vehicles outlined on page 13, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit (IBU) / Body Control Module (BCM) are not able to 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 that are not equipped with an immobilizer, 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.
TSB_BOD212_R12023-12-05. Service bulletin. SEATS; STRUCTURE. TECHNICAL SERVICE BULLETIN: PARTIAL SEAT TRACK REPLACEMENT FOR INOPERATIVE FRONT SEAT - 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 inspect and repair an inoperative front seat mechanism on some 2019-2024MY Forte (BDm) vehicles produced from June 18, 2018 through Present and some 2018-2023MY Rio (SC) vehicles produced from January 2, 2017 through August 16, 2023. Symptoms of an inoperative front seat include the inability of the seat to move forward and backward, which may be caused by a pin getting stuck on a rail.
CS2307B1_OWNR2023-11-03. Service bulletin. ELECTRICAL SYSTEM. CUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION - This document is the owner 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. Kia has since learned that some vehicles fall within a group of 2018-2021 MY Kia Rios that did not have the correct version of the software installed, and the software that was installed in the vehicle does not restrict operation of the vehicle as intended. We have corrected this issue and encourage customers to schedule an appointment with their local Kia dealer to install the corrected software as soon as possible. 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.
CS2307_TSB_R72023-11-03. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2307) - 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 some 2012-2017MY Rio (UB) produced from May 30, 2011 through March 31, 2017 and 2018-2021MY Rio (SC) vehicles produced from June 1, 2017 through October 25, 2021, 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.
CS2307_TSB_R62023-10-01. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2307) - 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 some 2012-2017MY Rio (UB) produced from February 28, 2012 through March 31, 2017 and 2018-2021MY Rio (SC) vehicles produced from June 1, 2017 through October 25, 2021, 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.
CS2307L_OWNRSC2023-10-01. Service bulletin. EQUIPMENT. CUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION - This document is the owner 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.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.