Service bulletins for the 2018 Hyundai Elantra GT
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.
117 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Automatic transmission are shown. Show all
| 21-AT-013H | 2021-09-17. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION. Certain vehicles (listed below) equipped with 7-speed Dual Clutch Transmission (DCT) may exhibit abnormal vibration at low speeds. This bulletin outlines the procedures for diagnosing and replacing the Double Clutch, including a Transmission Control Unit (TCU) software update. |
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| 19-AT-010H | 2019-07-01. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION. This bulletin provides a procedure to transfer pressure data to the ECU/TCU using GDS Mobile. This procedure is necessary to reduce the TCU learning time and improve the shift quality. |
| 5NP-P5L7D-05 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. If you are servicing a vehicle with a harsh and/or delayed shift, use the GDS as shown in the Service Procedure to measure shift engagement time. |
| 5NP-Z6F3A-11 | 2017-11-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Before installing an automatic transmission, check the depth of the torque converter in the case to confirm the torque converter is fully installed in the transmission. If this is not done, the oil pump may be damaged. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.