Please note: The TSB information displayed below are summaries. We do not have access to the full versions. To get full information about a particular TSB, write down the TSB title & date, & either contact your local dealer or click on the links below.

The TSB numbers are the NHTSA numbers, which are different from the manufacturer-assigned TSB numbers — the NHTSA doesn't keep track of those. It's a very screwed up situation that's almost completely unhelpful to you as the consumer. Use the issue date or the title when asking your dealer for more information about a TSB.

    ENGINE AND ENGINE COOLING

    • TSB #5NP-X4D6V-01

      NHTSA ID #10127009

      • Date Announced: DECEMBER 11 2017
      • Additional Info: How to Fix

      Summary: Hyundai Motor America is conducting a Service Campaign to update the ECM and TCM on certain 2018 Year Sonata 2.0L turbo vehicles. Service Campaign T2Q provides a service procedure to update the ECM and TCM.

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    POWER TRAIN

    • TSB #5NP-R6Y5M-01

      NHTSA ID #10127004

      • Date Announced: DECEMBER 11 2017
      • Additional Info: How to Fix

      Summary: This bulletin provides information related to the Engine Control Module (ECM) and Transmission Control Module (TCM) software updates for certain 2018MY SONATA, equipped with 2.0L turbo engine and 8 speed automatic transmission. These vehicl

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    • TSB #5NP-X4D6V-01

      NHTSA ID #10127009

      • Date Announced: DECEMBER 11 2017
      • Additional Info: How to Fix

      Summary: Hyundai Motor America is conducting a Service Campaign to update the ECM and TCM on certain 2018 Year Sonata 2.0L turbo vehicles. Service Campaign T2Q provides a service procedure to update the ECM and TCM.

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    • TSB #5NP-B6Z4E-10

      NHTSA ID #10118670

      • Date Announced: SEPTEMBER 12 2017
      • Additional Info: How to Fix

      Summary: The 2018 Sonata (LFA) 2.0T is equipped with an 8-speed transmission. Do not replace the transmission for any of the solenoid DTC listed below. Instead, follow the Service Procedure on Page 2 and replace the related part.

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    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #5NP-B9K3N-10

      NHTSA ID #10118671

      • Date Announced: SEPTEMBER 18 2017
      • Additional Info: How to Fix

      Summary: Some Sonata Hybrid (LF HEV) vehicles may experience a small oil leak from the electric oil pump (EOP) seals. If so, follow the Service Procedure in this bulletin to inspect and repair the oil seals between the transmission and EOP. No driv

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    • TSB #5NP-B6Z4E-10

      NHTSA ID #10118670

      • Date Announced: SEPTEMBER 12 2017
      • Additional Info: How to Fix

      Summary: The 2018 Sonata (LFA) 2.0T is equipped with an 8-speed transmission. Do not replace the transmission for any of the solenoid DTC listed below. Instead, follow the Service Procedure on Page 2 and replace the related part.

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    POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)

    • TSB #5NP-R6Y5M-01

      NHTSA ID #10127004

      • Date Announced: DECEMBER 11 2017
      • Additional Info: How to Fix

      Summary: This bulletin provides information related to the Engine Control Module (ECM) and Transmission Control Module (TCM) software updates for certain 2018MY SONATA, equipped with 2.0L turbo engine and 8 speed automatic transmission. These vehicl

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    POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

    • TSB #5NP-Z6F3A-11

      NHTSA ID #10123305

      • Date Announced: OCTOBER 04 2017
      • Additional Info: How to Fix

      Summary: Before installing an automatic transmission, check the depth of the torque converter in the case to confirm the torque converter is fully installed in the transmission. If this is not done, the oil pump may be damaged.

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    ELECTRICAL SYSTEM

    • TSB #5NP-T5B2D-02

      NHTSA ID #10128603

      • Date Announced: JANUARY 03 2018
      • Additional Info: How to Fix

      Summary: This bulletin describes the procedure to determine if the vehicle?s head unit needs to be replaced as a result of the system frequently losing a Bluetooth connection with Apple iPhone devices.

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    ELECTRICAL SYSTEM: SOFTWARE

    • TSB #5NP-R6Y5M-01

      NHTSA ID #10127004

      • Date Announced: DECEMBER 11 2017
      • Additional Info: How to Fix

      Summary: This bulletin provides information related to the Engine Control Module (ECM) and Transmission Control Module (TCM) software updates for certain 2018MY SONATA, equipped with 2.0L turbo engine and 8 speed automatic transmission. These vehicl

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    EXTERIOR LIGHTING:HEADLIGHTS

    • TSB #5NP-A4C8N-03

      NHTSA ID #10129908

      • Date Announced: FEBRUARY 07 2018
      • Additional Info: How to Fix

      Summary: This TSB provides information on the headlight pattern changes on certain 2018 MY Sonata (LFa), Elantra (ADa)(AD), Elantra GT (PD), Santa Fe Sport (AN), and Santa Fe (NC).

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    EQUIPMENT:ELECTRICAL

    • TSB #5NP-T5B2D-02

      NHTSA ID #10128603

      • Date Announced: JANUARY 03 2018
      • Additional Info: How to Fix

      Summary: This bulletin describes the procedure to determine if the vehicle?s head unit needs to be replaced as a result of the system frequently losing a Bluetooth connection with Apple iPhone devices.

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    • TSB #5NP-V3F8T-09

      NHTSA ID #10117373

      • Date Announced: AUGUST 03 2017
      • Additional Info: How to Fix

      Summary: If you are servicing a vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. ? Diagnostic trouble codes: ? P0705 - Range switch sensor circuit ? P0706 - Range switch range/performance

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    EQUIPMENT:AIR CONDITIONER

    • TSB #5NP-T9L7Q-11

      NHTSA ID #10123302

      • Date Announced: OCTOBER 25 2017
      • Additional Info: How to Fix

      Summary: This bulletin provides information regarding the A/C evaporator drain hose length specification change on certain Sonata (LFa) vehicles.

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    EQUIPMENT:MECHANICAL

    • TSB #5NP-H7A5L-01

      NHTSA ID #10126999

      • Date Announced: DECEMBER 11 2017
      • Additional Info: How to Fix

      Summary: Hyundai Motor America is conducting a Service Campaign to install a bolt on the A/C bracket on certain 2018 Year Sonata vehicles. Service Campaign T2O provides a service procedure to install the a/c bracket bolt.

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    • TSB #5NP-C3Z4G-01

      NHTSA ID #10126994

      • Date Announced: DECEMBER 11 2017
      • Additional Info: How to Fix

      Summary: Some Sonata 2.4L (LFa) vehicles may have an A/C bracket bolt missing. Prolonged use under this condition may result in bracket damage.

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