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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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Bulletins, newest first
5NP-V4S4Z-122017-10-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Hyundai Motor America is conducting a Service Campaign to inspect and (if necessary) replace the driver side sunvisor on certain dealer stock Sonata vehicles. Service Campaign TVV provides a procedure to inspect the sunvisor.
5NP-S2F2J-122017-10-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. On certain 2017MY Sonata the driver side sunvisor may not stay in the stowed position.
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-L6L7B-122017-10-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. On certain Sonata (LF) vehicles the ?Shark Fin? antenna mounting bosses may be weakened and the cover may become loose if external force is applied.
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-B9K3N-102017-10-12. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 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 drivability issues are associated with this condition.
5NP-R6Q4F-092017-09-14. Service bulletin. ENGINE AND ENGINE COOLING. Hyundai Motor America is conducting a Service Campaign to verify proper installation of the oil cooler hose clamp on certain 2017 Model Year Sonata 2.4L vehicles. Service Campaign T2H provides a procedure to verify the proper installation of the oil cooler hose clamp.
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-V3F8T-092017-09-14. Service bulletin. EQUIPMENT:ELECTRICAL. 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 ? P0707 - Range switch - open circuit ? P0708 - Range switch - short circuit or multiple inputs ? Symptoms: ? Malfunction Indicator Light (MIL) illuminated ? 4th gear fail-safe ? No gear indication in cluster ? Intermittent no engine crank/no start in ?P? or ?N? with or without MIL or DTC.
5NP-Z5Y2A-092017-09-14. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS; ENGINE AND ENGINE COOLING:COOLING SYSTEM. Some 2017 MY Sonata 2.4L (LFa) vehicles may have an improperly positioned oil cooler hose clamp. This may result in a coolant leak. Follow the procedure outlined in this bulletin to inspect and reposition the oil cooler hose clamp.
5NP-C4T7K-072017-08-17. Service bulletin. EQUIPMENT. Hyundai Motor America is conducting a Service Campaign to inspect and (if necessary) replace the Hybrid Starter Generator (HSG) on certain 2017 Sonata Hybrid vehicles. Service Campaign T2E provides a service procedure to inspect and replace the HSG.
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-U2Z6J-082017-08-15. Service bulletin. ENGINE; HYBRID PROPULSION SYSTEM. Some 2017MY SONATA HYBRID vehicles may develop an abnormal noise, Hybrid/Check Engine Warning Light On and/or Engine No Start if the pulley becomes loose at the Hybrid Starter Generator (HSG) shaft.
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-D5V9P-012017-01-26. Service bulletin. EQUIPMENT. HYUNDAI MOTOR AMERICA IS CONDUCTING A SERVICE CAMPAIGN TO INSPECT AND IF NECESSARY REPLACE THE SD CARD ON CERTAIN 2016-17 MODEL YEAR SONATA AND ELANTRA VEHICLES. SERVICE CAMPAIGN T1M PROVIDES A PROCEDURE TO INSPECT THE SD CARD.
5NP-D9L7X-012017-01-25. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). "THIS BULLETIN DESCRIBES THE SD CARD INSPECTION AND REPLACEMENT PROCEDURE FOR CERTAIN SONATA AND ELANTRA NAVIGATION SYSTEMS."
5NP-X9D6M-012017-01-24. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). "THIS BULLETIN PROVIDES INFORMATION RELATED TO CERTAIN 2017 SONATA VEHICLES TO UPDATE THE ECU AND/OR TCU FOR SHIFT QUALITY IMPROVEMENT."
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).
5NP-F9E3D-092016-10-13. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). "THIS BULLETIN DESCRIBES STEPS TO ACTIVATE APPLICABLE VEHICLES WITH NAVIGATION OR DISPLAY AUDIO RADIOS THAT HAVE BEEN DE-ACTIVATED FOR THE FOLLOWING REASONS: H A CUSTOMER WHO INITIALLY WAIVES BLUE LINK ENROLLMENT, AND THEN DECIDES TO ENROLL AFTER PURCHASE OF VEHICLE. H A CUSTOMER WHO ALLOWS ALL PACKAGES OF THEIR BLUE LINK SUBSCRIPTION TO EXPIRE AND THEN WISHES TO RE-SUBSCRIBE TO BLUE LINK. H A CUSTOMER WHO DID NOT ENROLL IN BLUE LINK WITHIN THE FIRST 30 DAYS OF OWNERSHIP (AT WHICH TIME THE DEVICE BECOMES INACTIVE), BUT THEN DECIDES TO ENROLL. H A SUBSEQUENT OWNER WHO WISHES TO ENROLL IN BLUE LINK."
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.
5NP-M5P8Y-072016-09-29. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). THIS TSB PROVIDES INTRUCTION ON UPDATING THE NAVIGATION/AUDIO SYSTEM TO INCLUDE APPLE CARPLAY AND ANDROID AUTO FEATURES.
16-AT-0042016-07-14. Service bulletin. POWER TRAIN. AUTOMATIC TRANSAXLE (6-SPEED) ATM FLUID LEVEL CHECK Description: The following vehicles are equipped with a 6-speed automatic transmission. The ATF level must be checked by the following procedure: NOTICE Use only ATF meeting the SP-IV specification approved by Hyundai. DO NOT use SP-III or other ATF which may result in degradation of shift quality or transaxle durability.

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