2023 Hyundai Sonata
TSBs (Technical Service Bulletins)
Technical Service Bulletins (TSBs) for the 2023 Sonata are official communications between Hyundai & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.
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TSB #24-FL-002H
This bulletin provides the procedure to update the Engine Control Module (ECM) and/or the Transmission Control Module (TCM) for 2020-2023MY Sonata (DN8/DN8a) vehicles to improve operation of the Idle Stop and Go (ISG) system. Read More »
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TSB #23-EM-005H
This bulletin provides important checkpoint guidelines when performing engine oil and filter change services. Read More »
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TSB #23-EE-010H
This bulletin is issued to provide the extended battery diagnosis procedure using GDS-M. This battery diagnosis function displays the various battery-related faults such as: a?? Internal short circuit a?? Battery deterioration a?? ... Read More »
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TSB #23-FL-002H-1
This bulletin provides the diagnostic procedure for the GDI injector(s) in certain 21-23MY Sonata, 21-22MY Santa Fe, certain 22MY Santa Cruz, and certain 21-23MY Tucson equipped with 2. Read More »
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TSB #23-EE-006H
This bulletin provides the procedure to repair poor pin tension at joint connector JE202 in certain Sonata (2.5L GDI engine) with one or more DTC. Read More »
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TSB #23-EE-005H
This bulletin provides the procedure to repair poor pin tension at joint connector JE102 in certain Sonata (1.6 T-GDI engine) with one or more DTC. Read More »
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TSB #23-AT-003H
If you are servicing an 8-speed vehicle with a a??Check Enginea?? light on and one or more of the DTC listed, follow the service procedure and replace the related solenoid and harness. Read More »
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TSB #23-FL-002H
This bulletin provides the diagnostic procedure for the GDI injector(s) in certain 21-23MY Sonata, 21-22MY Santa Fe, certain 22MY Santa Cruz, and certain MY21-23 Tucson equipped with 2. Read More »
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TSB #23-01-023H
This bulletin provides information related to the ECU software update for Sonata Hybrid (DN8 HEV) vehicles to revise the logic for the following DTC : a?? DTC P00B7 a?? Engine Coolant Flow ... Read More »
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TSB #24-FL-002H
This bulletin provides the procedure to update the Engine Control Module (ECM) and/or the Transmission Control Module (TCM) for 2020-2023MY Sonata (DN8/DN8a) vehicles to improve operation of the Idle Stop and Go (ISG) system. Read More »
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TSB #23-AT-009H
If you are servicing an 8-speed DCT front-wheel-drive vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. Read More »
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TSB #24-FL-002H
This bulletin provides the procedure to update the Engine Control Module (ECM) and/or the Transmission Control Module (TCM) for 2020-2023MY Sonata (DN8/DN8a) vehicles to improve operation of the Idle Stop and Go (ISG) system. Read More »
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TSB #23-AT-006H-2
This TSB provides information to diagnose the push button shifter operation. Read More »
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TSB #23-AT-008H-1
If you are servicing an 8-speed front-wheel-drive vehicle equipped with automatic transaxle with one or more of the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. Read More »
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TSB #23-AT-012H
This bulletin provides information related to a Transmission Control Unit (TCU) software update for certain vehicles equipped with an 8-speed wet dual clutch transmissions (8WDCT) that improves the touch point learning variation. Read More »
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TSB #23-AT-011H
This bulletin outlines changes to the service procedure regarding the replacement of 8-speed wet dual clutch transmissions (8WDCT) and associated transmission control unit (TCU). These changes only apply to vehicles equipped with Theta 2. Read More »
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TSB #23-AT-006H-1
This TSB provides information to diagnose the push button shifter operation. If you are servicing a vehicle with any symptoms listed below or DTCs (listed on Page 2) , follow the Service Procedure on Page 3. Read More »
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TSB #23-AT-009H
If you are servicing an 8-speed DCT front-wheel-drive vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. Read More »
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TSB #23-AT-008H
If you are servicing an 8-speed front-wheel-drive vehicle equipped with automatic transaxle with one or more of the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. Read More »
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TSB #23-AT-002H
This bulletin provides service procedures to prevent possible moisture intrusion of the HP EOP (High Flow Electric Oil Pump) connector when servicing the 8-speed wet dual clutch transmission (8WDCT). Read More »
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TSB #23-AT-006H-1
This TSB provides information to diagnose the push button shifter operation. If you are servicing a vehicle with any symptoms listed below or DTCs (listed on Page 2) , follow the Service Procedure on Page 3. Read More »
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TSB #23-AT-009H
If you are servicing an 8-speed DCT front-wheel-drive vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. Read More »
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TSB #23-AT-009H
If you are servicing an 8-speed DCT front-wheel-drive vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. Read More »
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TSB #24-BE-001H
Some vehicles equipped with the AVN 5th Gen Wide system may exhibit a condition where the radio app crashes frequently when entering radio mode and/or displays a message that reads a??Uneven Road Ahead, Drive carefullya?? on the cluster ... Read More »
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TSB #23-EE-010H
This bulletin is issued to provide the extended battery diagnosis procedure using GDS-M. This battery diagnosis function displays the various battery-related faults such as: a?? Internal short circuit a?? Battery deterioration a?? ... Read More »
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TSB #23-BE-007H
This Service Information bulletin provides information on how to update the Apple Carplay software from Hyundaia??s Navigation Updates page. Read More »
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TSB #23-AT-009H
If you are servicing an 8-speed DCT front-wheel-drive vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. Read More »
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TSB #24-BD-001H
This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. Read More »
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TSB #23-BD-002H
This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. Read More »
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TSB #24-BD-001H
This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. Read More »
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TSB #23-BD-007H
Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain, and industrial fallout. Read More »
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TSB #23-BE-007H
This Service Information bulletin provides information on how to update the Apple Carplay software from Hyundaia??s Navigation Updates page. Read More »