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Service bulletins for the 2017 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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
5NP-F8K5A-022018-02-12. Service bulletin. ELECTRICAL SYSTEM. Hyundai Motor America is adding additional models to Service Campaign T2M. Service campaign T2M provides a service procedure to replace the inhibitor switch on certain 2017-18 Santa Fe Sport, 2017 Santa Fe, 2017-18 Tucson, 2017 Azera, 2017 Sonata, Sonata Hybrid & Plug-in.
5NP-D5C6C-022018-02-12. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. Hyundai Motor America is conducting Service Campaign T2S to update the navigation system software on certain 2017 Model Year Sonata Hybrid & Plug-In Hybrid vehicles. Service Campaign T2S provides a service procedure to update the navigation system software.
5NP-D2K8B-022018-02-12. 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-Y3H5F-122017-12-14. Service bulletin. ELECTRICAL SYSTEM. Hyundai Motor America is conducting a Service Campaign to replace the inhibitor switch on certain 2017 Year Sonata, & 2017-18 Santa Fe Sport. Service Campaign T2M provides a service procedure to replace the inhibitor switch.
5NP-Q7W7V-112017-11-14. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. On certain 2017 MY Sonata (LF) and Santa Fe Sport (AN) vehicles, a screw securing the alternator?s regulator may not have been properly torqued during assembly. If this condition exists, the interior and/or exterior lights may flicker, and the alternator?s charging function may be affected illuminating the charging system warning light in the instrument cluster.
5NP-V7Q6D-122017-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Hyundai Motor America is conducting a Service Campaign to update both the ECM (Engine Control Module) and the TCM (Transmission Control Module) on dealer stock 2017 Model Year Sonata (1.6L). Service Campaign TWW provides a procedure to update the ECM and TCM.
5NP-R2S9M-122017-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Hyundai Motor America is conducting a Service Campaign to update both the ECU (Engine Control Unit) and the TCM (Transmission Control Unit) on dealer stock 2017 Model Year Sonata (2.4L).
5NP-Q4Q4Z-122017-10-15. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides the procedure to update both the ECM (Engine Control Module) and the TCM (Transmission Control Module) on some 2017 Hyundai Sonatas equipped with a 7-speed EcoShift® Dual Clutch Transmission (DCT). The update will address: ? A slight hesitation at low speeds that can be experienced in certain driving conditions. This update improves the low speed engine and transmission response.
5NP-H8T5W-122017-10-15. Service bulletin. ELECTRICAL SYSTEM:CYBERSECURITY. This bulletin provides information related to certain 2017 Sonata vehicles to update the ECU and TCU for shift quality improvement.
5NP-E2C3Q-092017-09-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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-Y9Y9T-072017-08-17. Service bulletin. 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-D5E6F-122017-01-26. Service bulletin. ENGINE; ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. CERTAIN SONATA VEHICLES EQUIPPED WITH THE 1.6L TURBO ENGINE HAVE A MANUAL ALTERNATOR BELT TENSIONER SYSTEM. THE TOP ALTERNATOR MOUNTING BOLT (A IN THE DIAGRAM) MAY BREAK OVER TIME IF IT IS TIGHTENED OVER SPECIFICATION AND COULD RESULT IN ILLUMINATION OF THE BATTERY WARNING LIGHT AND/OR THE ENGINE OVERHEATING IN SOME CASES. THIS BULLETIN DESCRIBES THE PROCEDURE TO REPLACE THE TOP ALTERNATOR MOUNTING BOLT.
5NP-B8B9B-122017-01-26. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. HYUNDAI MOTOR AMERICA IS CONDUCTING A SERVICE CAMPAIGN TO REPLACE THE TOP ALTERNATOR MOUNTING BOLT ON CERTAIN 2015-17 MODEL YEAR SONATA 1.6L VEHICLES. SERVICE CAMPAIGN TTT PROVIDES A PROCEDURE TO REPLACE THE TOP ALTERNATOR MOUNTING BOLT.
5NP-B3N9F-092016-10-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. THIS BULLETIN PROVIDES INFORMATION FOR NEW SOFTWARE TO UPDATE THE NAVIGATION AND DISPLAY AUDIO SYSTEM TO INCLUDE THE APPLE CARPLAY AND ANDROID AUTO FEATURE. THIS BULLETIN DESCRIBES HOW TO TRANSFER THE UPDATE SOFTWARE TO A STORAGE DRIVE (USB OR SD CARD) AND PERFORM THE SOFTWARE INSTALLATION INTO THE AUDIO SYSTEM.

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