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Service bulletins for the 2015 Hyundai Sonata

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

303 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
24-AT-002H2024-04-16. Service bulletin. POWER TRAIN. 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 Page 2.
23-01-054H2023-10-02. Service bulletin. POWER TRAIN; HYBRID PROPULSION SYSTEM. Certain 2013-2015MY Sonata Hybrid (YF HEV) vehicles may exhibit warning lights on while driving and the inability to restart the ignition after it has been turned off when stopped. TSB 23-01-054H outlines the service process to inspect the fuse and safety plug assembly, and replace the parts as needed. This best practice provides helpful tips and key notes when carrying out this service campaign.
23-01-054H2023-10-02. Service bulletin. POWER TRAIN. Certain Sonata Hybrid (YF HEV) vehicles may exhibit warning lights on while driving and the inability to restart the ignition after it has been turned off when stopped. This bulletin provides the procedure to inspect the safety plug and fuse and replace parts as necessary.
23-01-014H-52023-09-06. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response to an increase in thefts of certain 2011-2022MY Hyundai vehicles not equipped with engine immobilizers targeted through social media. For certain vehicles that cannot be updated with the software (Campaign 993), Hyundai is offering customers steering wheel locks at the dealer (Campaign P32). This Dealer Best Practices Guide provides information to assist dealership personnel with customer questions relating to the immobilizer software upgrade, window decals and steering wheel lock ant-theft solutions available from HMA through Hyundai dealers.
23-HC-001H2023-07-01. Service bulletin. POWER TRAIN. On certain Sonata hybrid (YF HEV) vehicles, the HEV safety plug or power relay assembly (PRA) may cause the following symptoms and one or more current related DTCs. Follow the Service Procedure before diagnosing the hybrid battery. Please review the following instructions carefully to determine applicability depending on the model year of your vehicle.
22-AT-007H2022-06-10. Service bulletin. POWER TRAIN; EQUIPMENT. Certain vehicles (listed below) equipped with 7-speed Double Clutch Transmissions (DCT) may exhibit abnormal vibration at low speeds. This bulletin outlines the procedures for diagnosing clutch judder, updating the Transmission Control Unit (TCU) with revised logic, and/or replacing the Double Clutch.
21-AT-014H2021-09-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN. Certain vehicles (listed below) equipped with 7-speed Double Clutch Transmissions (DCT) may exhibit abnormal vibration at low speeds. This bulletin outlines the procedures for diagnosing clutch judder, updating the Transmission Control Unit (TCU) with revised logic, and/or replacing the Double Clutch.
Campaign TWW Dea2020-07-08. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This service campaign provides instructions to update both the ECM (Engine Control Module) and the TCM (Transmission Control Module) to improve the shift quality of the DCT (Dual Clutch Transmission) for these vehicles.
20-01-025H2020-07-08. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This bulletin provides the procedure to update both the ECM (Engine Control Module) and the TCM (Transmission Control Module) on certain 2015-2017 Hyundai Sonatas equipped with 1.6L turbo engine 7-speed DCT Transmission.
20-AT-017H2020-06-06. Service bulletin. POWER TRAIN. If you are servicing an applicable vehicle with the following symptoms and DTC, follow the Service Procedure on Page 4. • Check Engine light on • DTC P0880/P088000 - TCM Power signal error open/short • Transmission stuck in 4th gear fail-safe • Harsh shift into Reverse and Drive
DCT Dealer Best2020-06-06. Service bulletin. POWER TRAIN. An informational brochure about the Dual Clutch Transmission was sent to Class Members of 2015-2017 model year Sonata Eco vehicles, 2016-2017 model year Tucson vehicles, and 2016-2017 model year Veloster vehicles equipped with a Dual Clutch Transmission.
20-AT-016H2020-05-07. Service bulletin. POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:
20-AT-014H2020-05-07. Service bulletin. POWER TRAIN; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness.
20-AT-008H2020-03-07. Service bulletin. POWER TRAIN; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness.
20-AT-001H2020-02-03. Service bulletin. POWER TRAIN. This TSB provides a procedure to diagnose and repair a transaxle for the following Incorrect Ratio DTC (transaxle clutch slipping more than 200 rpm in gear).
19-AT-021H-12020-01-21. Service bulletin. POWER TRAIN; EQUIPMENT. If you are servicing a vehicle with a transmission slipping concern, follow the Service Procedure shown below and perform a stall test. This TSB provides a procedure to test each clutch in the transmission. If the vehicle fails the stall test, replace the transmission. ? PASS: Stall speed is between 1700~2900 rpm (See shop manual for stall speed). ? FAIL: Engine revs to redline limit (6,000~6,500 rpm). If so, replace the transmission.
19-AT-015H2019-09-30. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. If you are servicing an applicable vehicle with a ?Check Engine? light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness
19-AT-012H2019-07-29. Service bulletin. POWER TRAIN. This TSB provides a procedure to diagnose and repair a transaxle for the following Incorrect Ratio DTC (transaxle clutch slipping more than 200 rpm in gear).
19-FL-003H2019-05-20. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides the procedure to write the Vehicle Identification Number (VIN) during the replacement of the Engine Control Module (ECM) or Powertrain Control Module (PCM). Once the VIN has been programmed to the ECM/PCM, it cannot be removed or overwritten.
5NP-Z3A5R-022019-02-19. Service bulletin. POWER TRAIN. This bulletin provides the procedure to update the TCU (Transmission Control Unit) in certain vehicles (listed Below) when replacing the Dual Clutch Transmission (DCT) with updated clutch material. This bulletin also provides a method of identifying transmissions with the updated F850 clutch material.
5NP-A3B9D-122018-12-17. Service bulletin. POWER TRAIN. Hyundai has launched a Product Improvement Campaign to perform a knock sensor software update on the subject vehicles. The software update installs a newly developed Knock Sensor Detection System (KSDS) that detects vibrations indicating the onset of excessive connecting rod bearing wear in the engine. The KSDS is designed to alert a vehicle driver at an early stage of bearing wear before the occurrence of engine damage. If vibrations caused by bearing wear start to occur, the Malfunction Indicator Lamp (MIL) will blink continuously, an audible chime will sound, and the vehicle will be placed in Limp Home Mode. At that time, Diagnostic Trouble Code (DTC) P132600, specific to the KSDS, will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Limp Home Mode, but it will accelerate slowly and have a reduced maximum speed with RPMs limited to approximately 1800-2000 RPM.
5NP-P5L7D-052018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. If you are servicing a vehicle with a harsh and/or delayed shift, use the GDS as shown in the Service Procedure to measure shift engagement time.
5NP-F6W6P-052018-05-21. Service bulletin. POWER TRAIN; POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:GEARS; EQUIPMENT. The shift lever on some 6-speed vehicles may intermittently not shift out of Park. This bulletin provides the diagnostic procedures to correct this condition.
5NP-Z6F3A-112017-11-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. 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.
5NP-S9D9P-102016-10-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THIS BULLETIN PROVIDES INFORMATION ON COMPONENTS, ATTRIBUTES, AND PRECAUTIONS OF THE 7-SPEED DRY-TYPE DUAL CLUTCH TRANSMISSION (DCT).

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.