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: Transmission control module are shown. Show all
| 21-AT-014H | 2021-09-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN. Certain vehicles (listed below) equipped with 7-speed Double Clutch Transmissions (DCT) may exhibit abnormal vibration at low speeds. This bulletin outlines the procedures for diagnosing clutch judder, updating the Transmission Control Unit (TCU) with revised logic, and/or replacing the Double Clutch. |
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| 5NP-X9D6M-01 | 2017-01-24. 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.