2023 Hyundai Ioniq 6 Technical Service Bulletins

37 technical service bulletins (TSBs) are on record for the 2023 Hyundai Ioniq 6. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11038798Oct 27, 2026Electrical system. This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 2nd Navigation Map and Software Update Key Improvements and Additional Improvements tables in this TSB for a list of specific changes. The software can be downloaded…
• 11038688Oct 21, 2026Electrical system, Body and structure. Some IONIQ 5 (NE EV) and IONIQ 6 (CE EV) vehicles may exhibit a vibration noise coming from the battery system assembly (BSA) lower cover. This may be caused by the lower cover becoming loose around the center mounting bolts. Follow the procedure in this bulletin to replace the mounting bolts and install cup washers with each bolt to hold the cover in place and resolve the noise on affected vehicles.
• 11038722Oct 15, 2026Back-over prevention (rear camera). Some Hyundai vehicles may be equipped with a parking distance warning (PDW) sensor(s) that may trigger various DTCs and display warning messages on the instrument cluster, resulting in the PDW sensor(s) failing to detect nearby objects or triggering multiple false alarms. This condition may be a result of external damage to the PDW sensor membrane or sensor cover from rock chips or road debris, a collision, or…
• 11034111Jun 25, 2026Fuel system, Electrical system. Certain 2022 – 2024 model year IONIQ 5, 2024 model year IONIQ 5 Robotaxi, and 2023 – 2025 model year IONIQ 6 vehicles may require a replacement of the Integrated Charging Control Unit (ICCU) and ICCU Fuse. At Hyundai, we are committed to providing vehicles of outstanding quality and value.
• 11033710May 27, 2026Electrical system. This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 1st Navigation Map and Software Update Key Improvements and Additional Improvements tables in this TSB for a list of specific changes. The software can be downloaded…
• 11033695May 14, 2026Electrical system. Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners.
• 11033694May 13, 2026Electrical system. Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners.
• 11033693May 12, 2026Electrical system. Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. Follow the flowchart in this bulletin to check for an active or stored occurrence of any Diagnostic Trouble Code (DTC) that requires replacement of…
• 11032523Apr 10, 2026Air bags. The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These inflators were not supplied, approved, or authorized by the vehicle manufacturers and have primarily been found in vehicles that previously experienced a crash and underwent airbag…
• 11032522Apr 10, 2026Air bags. The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN), that have been identified in U.S. vehicles following prior crashes, theft, or non‑certified airbag replacements. These inflators are not approved for use, may rupture during…
• 11029906Feb 25, 2026Lane departure, Exterior lighting, Forward collision avoidance. Some 2019MY and newer vehicles equipped with a front view camera may illuminate certain warning lights and trigger DTC C272246 fault code for the front camera. In the following cases, the front camera auto-calibration range may be exceeded while driving: • If the front camera is not properly installed and is completely or partially detached.
• 11028628Feb 6, 2026Other or unknown. Certain 2023 – 2025 model year IONIQ 6 vehicles may experience an inoperable horn that may be caused by water intrusion through the ventilation hole. At Hyundai, we are committed to providing vehicles of outstanding quality and value.
• 11026613Dec 13, 2025Other or unknown. Certain IONIQ 6 (CE EV) vehicles may have an inoperable horn that may be caused by water intrusion through the ventilation hole. Hyundai is extending the warranty coverage for the horn replacement to 10 years/120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners.
• 11026614Dec 12, 2025Other or unknown. Certain IONIQ 6 (CE EV) vehicles may have an inoperable horn that may be caused by water intrusion through the ventilation hole. Hyundai is extending the warranty coverage for the horn replacement to 10 years/120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. This bulletin provides instructions on the replacement of…
• 11027001Dec 11, 2025Other or unknown. Certain IONIQ 6 (CE EV) vehicles may have an inoperable horn that may be caused by water intrusion through the ventilation hole. Hyundai is extending the warranty coverage for the horn under this condition to 10 years/120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners.
• 11025476Nov 6, 2025Exterior lighting. This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or…
• 11023692Sep 30, 2025Electrical system. This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system as described in this TSB.
• 11020938Jul 26, 2025Fuel system. Certain IONIQ 5 (NE EV), IONIQ 6 (CE EV), and IONIQ 5 N (NE EV N) vehicles may have missing Inlet 5-Pin Combo DC insulation caps (DC pin caps) which may lead to damage to the charge port if not replaced. This bulletin provides instructions to replace the DC pin cap(s).
• 11018876May 16, 2025Electrical system. This bulletin provides information related to the changes introduced in the 2024 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2024 2nd Navigation Map and Software Update Improvements section in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater (NAU) and updated by USB. The NAU website…
• 11018575May 8, 2025Electrical system. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.
• 11017111Apr 7, 2025Electrical system. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon's communication network. If you are experiencing issues with remote commands, or other Bluelink services, please see the instructions below to reestablish the connection via the AVN pinhole reset method.
• 11015936Mar 18, 2025Electrical system. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.
• 11010986Dec 3, 2024Electrical system. Certain 2022-2024MY IONIQ 5 (NE EV) and 2023-2025MY IONIQ 6 (CE EV) vehicles may exhibit a condition while driving where the 12V battery voltage drops below the operational voltage and the Vehicle Control Unit (VCU) places the vehicle in “fail-safe” mode. The VCU software in this bulletin updates the maximum vehicle speeds for various levels of 12V battery voltage when the vehicle enters “fail-safe” mode.
• 11008013Sep 18, 2024Electrical system. Certain 2022-2024MY IONIQ 5 (NE1), 2023-2024MY IONIQ 6 (CE1) and 2024-2025MY Kona Electric (SX2 EV) vehicles may exhibit a condition while charging with a 240V AC (Level 2) charger where the vehicle experiences an interrupted charging session or a lower charging speed. This occurs to prevent potential damage to the charging cable connection.
• 11006095Jul 12, 2024Electrical system. This bulletin provides important special service instructions to properly repair a vehicle that has been diagnosed to require an Integrated Charge Control Unit (ICCU) replacement, such as required for DTC P1A9096 DC to DC related charging concern or for inoperative AC charging. • The ICCU fuse accessible from a rear side panel of the EV Battery, should NEVER be replaced by itself prior to receiving an ICCU…
• 11006049Jul 4, 2024Electrical system. Certain 2022-2024MY IONIQ 5 (NE1) and 2023-2024MY IONIQ 6 (CE1) vehicles may exhibit a condition while charging with a 240V AC (Level 2) charger where the vehicle experiences an interrupted charging session or a lower charging speed. This occurs to prevent potential damage to the charging cable connection.
• 10252359Mar 6, 2024Transmission and drivetrain, Electrical system. Certain 2022-2024 MY IONIQ 5 (NE1) and 2023MY IONIQ 6 (CE1) may have a condition of the power down warning light (turtle symbol) with "Power is limited" displayed in the cluster, and possible DTC P0A2F. If you are servicing a vehicle with either of these conditions, follow this bulletin to inspect the EOP.
• 10251285Feb 14, 2024Visibility (wipers, defrost, mirrors). This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming partially separated on the inner side of the wiper blade, which could lead to poor wiping performance and/or possible scratching of the windshield glass.
• 10247189Oct 13, 2023Engine cooling. This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
• 10244987Oct 9, 2023Transmission and drivetrain, Brakes. Updated Vehicle Control Unit (VCU) software relating to the brake light logic for regenerative braking on certain IONIQ 5 Electric (NE1) & IONIQ 6 (CE1) vehicles is now available to improve the vehicle’s system logic and performance. An “Owner’s Manual Supplement” leaflet is also to be provided to 2022MY IONIQ 5 vehicle customers to explain the change & application of the Electronic Parking Brake (EPB)…
• 10244986Oct 9, 2023Transmission and drivetrain, Brakes. This updated Vehicle Control Unit (VCU) software package includes the following: • Brake light logic update for regenerative braking. • i-Pedal mode operation logic update. • 12V battery saver logic update allows charging from EV Battery as low as 10% SOC when parked.
• 10243340Sep 18, 2023Engine cooling, Electrical system. 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: • Internal short circuit • Battery deterioration • Malfunction of electronic parts • Insufficient battery charge • Normal battery • Charging defect Battery diagnosis uses the battery sensor history saved for the last 30 days and ICU…
• 10241880Aug 25, 2023Electrical system, Transmission and drivetrain. This bulletin provides service information on how to inspect the charging port and if needed, replace any missing/damaged insulation cap(s) at the charging port on certain 2022-2023MY Ioniq 5 (NE1) and 2023MY (CE1) . The charging insulation caps are important to ensure proper charger connector orientation and fit to the vehicle charge port.
• 10240086Jul 17, 2023Transmission and drivetrain, Electrical system. Certain 2022-2023MY IONIQ 5 (NE1) and 2023MY IONIQ 6 (CE1) vehicles may exhibit a condition where low 12V auxiliary battery charging occurs due to an ICCU (Intelligent Charging Control Unit) fault which may set the following DTC P1A9096 – “DC/DC Converter Input Voltage Sensor Fault”.
• 10240085Jul 17, 2023Electrical system, Transmission and drivetrain. Certain 22-23MY Ioniq 5 (NE1) & 23MY Ioniq 6 (CE1) vehicles may have a condition where low 12V auxiliary battery charging occurs due to an ICCU (Intelligent Charging Control Unit) fault and may set the following DTC P1A9096 – “DC/DC Converter Input Voltage Sensor Fault”.
• 10240083Jul 11, 2023Body and structure, Latches, locks and linkages. Certain 2023MY Ioniq 5 (NE1) and 2023MY Ioniq 6 (CE1) vehicles may exhibit a poorly closing power tailgate due to improper latching when closing which may cause the liftgate warning chime to come on. This bulletin provides the service procedure to update the Power Tailgate Module (PTGM) software to improve the condition stated above.
• 10237178May 3, 2023Electrical system. Some 2023 IONIQ 6 (CE1) vehicles may experience intermittent operation of the Smart Approach Unlock function. This bulletin provides the service procedure to update the IBU (Integrated Body Control Unit) software to resolve the condition stated abo

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