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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: Engine are shown. Show all

Bulletins, newest first
5NP-X6N5X-112017-11-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Some Sonata 2.0T (LFa) vehicles may experience deterioration of the air inlet hose near the turbo inlet. This may cause an air rushing noise and may cause potential damage to the turbo charger.
5NP-G2Y2W-112017-11-14. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. Hyundai Motor America is conducting a Service Campaign to replace the air intake hose on certain 2015-17MY Sonata vehicles equipped with 2.0L turbo engine. Service Campaign T2K provides a service procedure to replace the air intake hose.
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-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-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-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."

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