Service bulletins for the 2017 Hyundai Elantra
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.
159 on file from NHTSA, as of 2026-10-19.
About P0128 on the 2017 Hyundai Elantra: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P0128 are shown. Show all
| 5NP-A2Y3D-05 | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This bulletin provides a procedure for replacing the thermostat on certain 2017 Elantra vehicles. The thermostat may not function properly and may result in Diagnostic Trouble Code P0128. Replacement of thermostat is required even without a P0128 code. |
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| 5NP-V2N3H-09 | 2016-10-05. Service bulletin. ENGINE. THIS BULLETIN PROVIDES A PROCEDURE FOR REPLACING THE THERMOSTAT ON CERTAIN 2017 ELANTRA VEHICLES. THE THERMOSTAT MAY FUNCTION IMPROPERLY AND MAY RESULT IN DIAGNOSTIC TROUBLE CODE P0128. NO DRIVABILITY ISSUES ARE ASSOCIATED WITH THIS CONDITION. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.