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.
By type
By component
By trouble code
By topic
| 19-01-002H-1 | 2019-03-18. Service bulletin. ENGINE. Hyundai is conducting a product improvement campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, a chime will sound on certain vehicles, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Engine Protection Mode, but it will accelerate slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM. |
|---|---|
| 5NP-M7Z5K-02 | 2019-02-19. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information on how to return a Hyundai HEV/PHEV/EV/Fuel Cell Lithium Battery for proper disposal and safe environmental recycling using Hyundai?s authorized vendor Kinsbursky Brothers Inc. (KBI). |
| 5NP-Z3A5R-02 | 2019-02-19. 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-H9R6R-02 | 2019-02-19. Service bulletin. EQUIPMENT. 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. The update will be done free of charge to customers and will only involve the addition of the KSDS software update. |
| 5NP-R7N2J-01 | 2019-02-19. Service bulletin. ENGINE AND ENGINE COOLING. Certain 2015MY Sonata and Santa Fe Sport vehicles with 2.0L Turbo and 2.4L engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and install a wire harness extension or replacement engine based on the inspection results. |
| 5NP-Q7C7X-01 | 2019-02-19. Service bulletin. ENGINE AND ENGINE COOLING. The warranty coverage for the engine long block has been extended to 10 years or 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. Note: Service Campaign 953 must be performed prior to applying this warranty extension. |
| 5NP-W4W6L-01 | 2019-02-19. Service bulletin. ELECTRICAL SYSTEM. Hyundai is conducting a product improvement campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, a chime will sound on certain vehicles, and the vehicle will be placed in Limp Home Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 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 slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM. |
| 5NP-L6Z7X-01 | 2019-02-19. Service bulletin. ELECTRICAL SYSTEM. Hyundai has launched a Product Improvement Campaign to perform a knock sensor software update on the subject vehicles. This campaign is being implemented to ensure the satisfaction of Hyundai customers. 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-E8E9D-02 | 2019-02-19. Service bulletin. ENGINE AND ENGINE COOLING. Hyundai is conducting a product improvement campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, a chime will sound on certain vehicles, and the vehicle will be placed in Limp Home Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 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 slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM. |
| 5NP-S6S9Z-12 | 2018-12-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides information related to a BMS (Battery Management System) ECU software update that must be performed after replacing a high voltage Lithium Battery in a Sonata HEV (YF HEV) or Tucson Fuel Cell Electric Vehicle (LM FCEV). |
| 5NP-X5P5Q-12 | 2018-12-17. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. The warranty coverage for the engine long block has been extended to 10 years or 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. |
| 5NP-R7Q5Y-12 | 2018-12-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. Hyundai is providing extended warranty coverage to both new and used vehicle owners for engine long block assembly repairs needed due to excessive connecting rod bearing damage upon completion of Service Campaign 953. The warranty extension is for 10 years from the date of original delivery or the date of first use, or 120,000 miles, whichever occurs first. |
| 5NP-E6X6V-12 | 2018-12-17. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Hyundai is conducting a product improvement campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, a chime will sound, and the vehicle will be placed in Limp Home Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 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 slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM. |
| 5NP-A3B9D-12 | 2018-12-17. 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-D4H4Q-11 | 2018-11-13. Service bulletin. ENGINE. Certain 2015MY Sonata vehicles with 2.0L Turbo and 2.4L engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and install a wire harness extension or replacement engine based on the inspection results. |
| 5NP-X9G4F-09 | 2018-09-17. Service bulletin. EQUIPMENT. This bulletin describes the proper steps to identify and correct a symptom with a "Subscription Updated" or "Loading" pop-up message shown (intermittently) after every Head Unit boot up. |
| 5NP-T8W7X-09 | 2018-09-17. Service bulletin. VISIBILITY. On certain Sonata (LF) vehicles, the left/right outside mirror may not actuate up/down and/or left/right. In these instances it is recommended to replace the outside mirror actuator only, not the entire outside mirror assembly. |
| 5NP-D2B2H-09 | 2018-09-17. Service bulletin. ENGINE AND ENGINE COOLING. Hyundai is conducting a product improvement campaign to enhance the knock sensor software on certain 2015 MY Sonata vehicles to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, a chime will sound, and the vehicle will be placed in Limp Home Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 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 slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM. |
| 5NP-B9V8T-09 | 2018-09-17. Service bulletin. STEERING. On some Sonata (YF, LF), Sonata Hybrid (YF HEV, LF HEV), Santa Fe (NC), and Azera (HG) vehicles, a yoke noise may develop in the steering rack. This bulletin provides information on how to diagnose the yoke noise and replace the rack support yoke assembly. |
| 5NP-Q3Q2Y-05 | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin describes the procedure to repair a condition with the radio changing bands/switching modes between AM>FM>SXM (intermittently) on its own. |
| 5NP-P5L7D-05 | 2018-05-21. 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-05 | 2018-05-21. 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-K3C4M-03 | 2018-03-12. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS; STRUCTURE. This bulletin provides the repair procedure to eliminate panoramic sunroof creaking noise originating from the panoramic moving glass seal. |
| 5NP-D2K8B-02 | 2018-02-12. Service bulletin. BACK OVER PREVENTION: CAMERA SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:SOFTWARE. When towing a trailer with some LF/LF-HEV/LF-PHEV Sonatas or some AN/NC Santa Fe vehicles equipped with the Blind Spot Detection (BSD) feature, the trailer may interfere with the BSD system operation resulting in cancellation of the BSD operation. When this occurs, a ?BSD canceled? message is displayed in the vehicle?s instrument cluster. The ?BSD canceled? message remains on even if the customer manually disables the BSD system, and may result in customer complaints. This bulletin provides the service procedure to update the system software to turn off the ?BSD canceled? message when the BSD system is manually disabled. |
| 5NP-G8S6L-01 | 2018-01-16. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This bulletin describes the procedure to determine if the vehicle's navigation unit needs to be replaced as a result of the inability to set the clock or view it on the top of the screen. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.