2024 Hyundai Sonata service bulletins & manufacturer communications

32 manufacturer communications are on file with NHTSA for the 2024 Hyundai Sonata. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.

• Certain 2024-2026MY Sonata (DN8) and 2024-2026MY Sonata Hybrid (DN8 HEV) vehicles may exhibit intermittent battery discharge condition due to the air conditioning controller not fu…
  LA29-LA30 DCS · Warranty extension · Electrical System · issued Jul 14, 2026
• Certain Sonata (DN8) vehicles may exhibit intermittent battery discharge condition due to the air conditioning controller not fully powering down after the vehicle is turned off an…
  7/13/2026 TSB · Warranty extension · Electrical System · issued Jul 13, 2026
• This bulletin provides information related to a Transmission Control Unit (TCU) software update for some vehicles equipped with an 8-speed wet dual clutch transmission (8WDCT). The…
  26-AT-005H TSB · Technical service bulletin · Power Train · issued Jun 5, 2026
• 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 depe…
  26-GI-002H TSB · Technical service bulletin · Electrical System · issued May 27, 2026
• The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province De…
  DTN DL · Technical service bulletin · Air Bags · issued Apr 10, 2026
• The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin …
  DTN DCS · Technical service bulletin · Air Bags · issued Apr 10, 2026
• Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communicati…
  26-01-035H TSB · Service campaign · Electrical System · issued Apr 8, 2026
• Some Sonata (DN8) and Tucson (NX4/NX4A/NX4M) vehicles equipped with the 2.5L Theta III GDI engine may display a warning lamp and store Diagnostic Trouble Code (DTC) P2B59F0, which …
  26-EM-009H TSB · Technical service bulletin · Electrical System · issued Mar 24, 2026
• 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 cas…
  26-AD-001H TSB · Technical service bulletin · Forward Collision Avoidance · issued Feb 25, 2026
• Hyundai Motor America is currently investigating an ongoing issue with software GDS event #1302. The matter is being investigated. We will provide an update once the issue is resol…
  TEB/TEBA DCS · Service campaign · Electrical System · issued Dec 10, 2025
• 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 …
  25-BD-012H TSB · Technical service bulletin · Exterior Lighting · issued Nov 6, 2025
• Certain Sonata (DN8) and Sonata Hybrid (DN8 HEV) vehicles may experience battery drain due to the air conditioning controller not shutting down completely while the vehicle is park…
  25-01-075H/076H DCS · Service campaign · Electrical System · issued Oct 21, 2025
• Certain Sonata (DN8) vehicles may experience battery drain due to the air conditioning controller not shutting down completely while the vehicle is parked and turned off. This bull…
  25-01-075H TSB · Service campaign · Electrical System · issued Oct 21, 2025
• 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 …
  25-BE-020H TSB · Technical service bulletin · Electrical System · issued Sep 30, 2025
• The issue regarding the cluster speedometer software upgrade failures when attempting to update to the latest version has been resolved. Technical Service Bulletins (TSBs) 25-01-04…
  TDQ/TDQA WebDCS 2 · Service campaign · Electrical System · issued Sep 19, 2025
• Hyundai Motor America is currently investigating an ongoing auto mode update concern with software GDS event #1243. Some vehicles are not being able to complete the update after mu…
  TDQ/TDQA WebDCS · Service campaign · Electrical System · issued Sep 4, 2025
• Certain Sonata (DN8) and Sonata (DN8) N-Line trim vehicles equipped with the Super Vision instrument cluster (12.3” wide) may have speedometers that display the incorrect speed and…
  25-01-048H TSB · Service campaign · Electrical System · issued Sep 2, 2025
• Certain vehicles with the Connected Car Navigation Cockpit (ccNC) Lite units may exhibit connection issues with Bluetooth and wireless phone projection. The vehicle's name may also…
  25-BE-013H TSB · Technical service bulletin · Electrical System · issued Jun 14, 2025
• 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 …
  25-BE-002H TSB · Technical service bulletin · Electrical System · issued May 16, 2025
• Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communicati…
  25-01-018H-1 TSB · Service campaign · Electrical System · issued May 8, 2025
• Certain vehicles (See Applicable Vehicles List below) equipped with the 12-inch instrument cluster display and separate Instrument Cluster Module require software verification PRIO…
  25-BE-008H TSB · Technical service bulletin · Electrical System · issued Apr 4, 2025
• The exhaust gas recirculation (EGR) valve assembly in certain vehicles (listed below) may contain a sensor that was contaminated with solder flux during manufacturing, which could …
  25-01-023H TSB · Service campaign · Engine · issued Mar 13, 2025
• The exhaust gas recirculation (EGR) valve assembly in certain vehicles may contain a sensor that was contaminated with solder flux during manufacturing, which could potentially res…
  25-01-023H DN · Service campaign · Engine · issued Mar 13, 2025
• Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communicati…
  25-01-018H TSB · Service campaign · Electrical System · issued Feb 28, 2025
• Hyundai Motor America has noted that several vehicles were impacted by a telecommunications outage that occurred on Sunday, February 9th , resulting in the potential loss of connec…
  25-BE-003H DN · Technical service bulletin · Electrical System · issued Feb 22, 2025
• Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communicati…
  25-BE-003H TSB · Technical service bulletin · Electrical System · issued Feb 15, 2025
• Hyundai has become aware that the subject vehicles may contain a faulty sensor in the EGR valve assembly which could potentially result in an electrical short. An electrical short …
  24-01-080H OL · Service campaign · Unknown OR Other · issued Oct 22, 2024
• The exhaust gas recirculation (EGR) valve assembly in certain vehicles (listed below) may contain a sensor that was contaminated with solder flux during manufacturing, which could …
  24-01-080H · Service campaign · Engine · issued Sep 25, 2024
• The exhaust gas recirculation (EGR) valve assembly in certain vehicles may contain a sensor that was contaminated with solder flux during manufacturing, which could potentially res…
  24-01-080H · Service campaign · Engine · issued Sep 25, 2024
• Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Service (CCS) functions. This may be due to an occasional disconnection on Ve…
  24-BE-013H · Technical service bulletin · Electrical System · issued Sep 23, 2024
• This TSB provides a procedure to diagnose and replace, if necessary, an automatic transmission with Incorrect Ratio DTC (transmission clutch slip in gear above limit) listed on Pag…
  24-AT-002H · Technical service bulletin · Power Train · issued Apr 9, 2024
• 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…
  24-BD-001H · Technical service bulletin · Visibility/wiper · issued Feb 14, 2024