Sonata Hybrid SE

239 service bulletins filed with NHTSA for this model year

• May 21, 2026ELECTRICAL SYSTEM26-01-013H-2 TSB

  Certain Santa Fe (TMA), Santa Fe Sport (AN), Sonata (LFA), and Tucson (TL) vehicles equipped with Theta II engines may exhibit elevated engine-out emissions. This bulletin provides instructions for updating the Engine Control Module (ECM) to address this condition.

• May 21, 2026ELECTRICAL SYSTEM26-01-013H-2 DN

  Certain Santa Fe (TMA), Santa Fe Sport (AN), Sonata (LFA), and Tucson (TL) vehicles equipped with Theta II engines may exhibit elevated engine-out emissions. The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.

• May 19, 2026ELECTRICAL SYSTEM9C2 DCS 260518

  Following completion of Service Campaign 9C2 (Theta II Emissions Improvement), certain vehicles may exhibit a brief hesitation or rough shifting condition during cold start operation. If present, this condition is expected to occur only within approximately the first 1-3 minutes after engine start, while the catalyst is reaching its normal operating temperature.

• May 19, 2026ENGINE9C2 060518

  Following completion of Service Campaign 9C2 (Theta II Emissions Improvement), certain vehicles may exhibit a brief hesitation or rough shifting condition during cold start operation. If present, this condition is expected to occur only within approximately the first 1-3 minutes after engine start, while the catalyst is reaching its normal operating temperature.

• Apr 28, 2026UNKNOWN OR OTHER26-BD-002H TSB

  Certain Hyundai vehicles with exterior white paint may exhibit peeling or bubbling on metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and tailgate/trunk. The paint warranty coverage for affected vehicles has been extended to 10 years/unlimited miles from the date of original retail delivery or date of first use and is valid for original and subsequent owners. The warranty extension does not apply to any vehicle that has ever been declared a total loss or sold for salvage by

• Apr 28, 2026UNKNOWN OR OTHER26-BD-002H DN

  Some Hyundai vehicles with exterior white paint may exhibit peeling or bubbling on metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and tailgate/trunk. The paint warranty coverage for affected vehicles has been extended to 10 years/unlimited miles from the date of original retail delivery or date of first use and is valid for original and subsequent owners.

• Apr 18, 2026ENGINE26-EE-003H TSB

  Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing and, if necessary, replace the starter magnetic switch (solenoid) assembly.

• Apr 14, 2026ENGINE9C2 OL

  Certain 2019 – 2020 model year Santa Fe, 2017 – 2018 model year Santa Fe Sport, 2015 – 2019 model year Sonata, and 2018 – 2021 model year Tucson vehicles may exhibit elevated engine-out emissions. Hyundai is conducting a service campaign to update the Engine Control Module (ECM) Software for vehicles equipped with the (2.4 GDI) Theta II engine to improve engine combustion and fuel trim adaptations.

• and 231 more

Source: NHTSA manufacturer communications (technical service bulletins).