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Service bulletin 20-AT-010H

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10173554
Published by NHTSA2020-04-07
Manufacturer's number20-AT-010H
Manufacturer's date2020-03-31
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

Hyundai approves only the ATF, DCT gear oil and IVT gear oil specified in the vehicle’s owner’s manual. Use of other ATF may result in improper shift quality or other drivability conditions. Use of other DCT and IVT gear oil may result in reduced durability. Hyundai does not approve the use of any aftermarket ATF or gear oil additives.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline, Automatic transmission

Vehicles listed
HYUNDAI HYUNDAI

Listing a model year does not mean every vehicle of it is concerned: the document says which.