2025 Kia K4 service bulletins & manufacturer communications
19 manufacturer communications are on file with NHTSA for the 2025 Kia K4. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.
Technical service bulletin 19
- TECHNICAL SERVICE BULLETIN: BODY DOMAIN CONTROLLER (BDC) REPLACEMENT (CA2515 Revision 1) - This bulletin has been revised to include additional information. New/revised sections of…TSB_ELE414_R1 · Technical service bulletin · Electrical System · issued Jul 22, 2026
- TECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE.KIA.COM - This bulletin provides information and service procedures for updating the infotainment syste…TSB_ELE422 · Technical service bulletin · Electrical System · issued May 28, 2026
- TECHNICAL SERVICE BULLETIN: BODY DOMAIN CONTROLLER (BDC) REPLACEMENT (CA2515) - This bulletin provides information regarding the Body Domain Control unit (“BDC”) on certain 2025MY …TSB_ELE414 · Technical service bulletin · Electrical System · issued Apr 28, 2026
- TECHNICAL SERVICE BULLETIN: INFOTAINMENT SOFTWARE UPDATE PROCEDURE - This bulletin provides information on the process for downloading infotainment software updates and preparing U…TSB_ELE417 · Technical service bulletin · Electrical System · issued Apr 14, 2026
- TECHNICAL SERVICE BULLETIN: DCU COMMUNICATION LOGIC IMPROVEMENT - This bulletin provides the procedure to upgrade the Data Connectivity Unit (DCU) system software on some 2025–2026…TSB_ELE413 · Technical service bulletin · Electrical System · issued Mar 20, 2026
- PITSTOP: TECHNICAL OPERATIONS: EXTERNAL DAMAGE TO ULTRASONIC SENSOR: This Pitstop provides information related to Parking Distance Warning (PDW) alerts and repairs involving ultras…PS797 · Technical service bulletin · Back Over Prevention · issued Dec 9, 2025
- RELEASE NOTES: OVER-THE-AIR: SERVICE ACTION SOFTWARE UPDATE FOR WARNING LIGHTS (SA621) - This Over-the-Air (OTA) software update is designed to update the Engine Control Unit (ECU)…OTA_SA621 · Technical service bulletin · Engine · issued Dec 2, 2025
- TECHNICAL SERVICE BULLETIN: SERVICE ACTION: ECM JUDGEMENT LOGIC IMPROVEMENT FOR DTC P218100 (SA621) - This bulletin provides information to upgrade the Engine Control Module (ECM) …TSB_ENG258 · Technical service bulletin · Engine · issued Sep 13, 2025
- RELEASE NOTES: OVER-THE-AIR: SERVICE ACTION: SOFTWARE UPDATE FOR RCM (SA620) - This Over-the-Air (OTA) software update is designed to update the Roof Control Module (RCM) of certai…OTA_SA620 · Technical service bulletin · Electrical System · issued Sep 12, 2025
- PITSTOP: TECHNICAL OPERATIONS: DCU IDENTIFICATION AND DAIGNOSTIC AID - This Pitstop provides information on identifying the Data Connectivity Unit (DCU) in Kia vehicles equipped wi…PS791 · Technical service bulletin · Electrical System · issued Aug 22, 2025
- TECHNICAL SERVICE BULLETIN: BODY DOMAIN CONTROLLER (BDC) REPLACEMENT (CA2507) - This bulletin provides information regarding the Body Domain Control unit (BDC) on certain 2025MY K4…TSB_ELE385 · Technical service bulletin · Electrical System · issued Aug 7, 2025
- TECHNICAL SERVICE BULLETIN: SERVICE ACTION: SUNROOF OPERATION LOGIC IMPROVEMENT (SA620) - This bulletin supersedes TSB SA595 (December 2024) and outlines the procedure to update th…TSB_ELE390 · Technical service bulletin · Electrical System · issued Jun 27, 2025
- TECHNICAL SERVICE BULLETIN: SERVICE ACTION: SUNROOF OPERATION SOFTWARE LOGIC IMPROVEMENT (SA595) - CLOSED AND SUPERSEDED BY ELE390/SA620 - This bulletin provided the procedure to u…TSB_ELE363_CLSD · Technical service bulletin · Electrical System · issued Jun 26, 2025
- TECHNICAL SERVICE BULLETIN: REAR COMBINATION LAMP BULB REPLACEMENT (CA2506) - This bulletin provides information regarding the replacement of the rear turn signal bulbs and stop la…TSB_ELE384 · Technical service bulletin · Exterior Lighting · issued Jun 5, 2025
- TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indic…TSB_TRA046_R5 · Technical service bulletin · Power Train · issued Apr 17, 2025
- TECHNICAL SERVICE BULLETIN: COMBINATION TSB/SERVICE ACTION: CCNC – DEALER MODE, FACTORY & NETWORK RESET (SA613) - This bulletin has been revised as a Combination TSB/SA and include…TSB_ELE341_R4 · Technical service bulletin · Electrical System · issued Mar 6, 2025
- TECHNICAL SERVICE BULLETIN: SERVICE ACTION: WINDSHIELD WASHER FLUID REPLACEMENT (SA606) - This bulletin has been revised to include additional information. New/revised sections of …TSB_BOD338_R1 · Technical service bulletin · Visibility/wiper · issued Feb 26, 2025
- TECHNICAL SERVICE BULLETIN: SERVICE ACTION: WINDSHIELD WASHER FLUID REPLACEMENT (SA606) - This bulletin provides the procedure to replace the windshield wiper fluid on certain 2025…TSB_BOD338 · Technical service bulletin · Visibility/wiper · issued Feb 20, 2025
- TECHNICAL SERVICE BULLETIN: SERVICE ACTION: KIA CONNECT ACTIVATION FAILURE (SA600) - This bulletin has been revised to include additional information. New/revised sections of this …TSB_ELE368_R1 · Technical service bulletin · Electrical System · issued Jan 29, 2025