Check a VIN

September 2, 2020 Service bulletin

This bulletin provides a procedure to transfer pressure data to the TCU using GDS Mobile

Hyundai technical service bulletin 20-AT-020H for 2018-2021 Hyundai Sonata, 2019-2021 Hyundai Santa Fe and 2020-2021 Hyundai Palisade.

Bulletin number
20-AT-020H
Component
Power train
Summary
This bulletin provides a procedure to transfer pressure data to the TCU using GDS Mobile. This procedure is necessary to reduce the transmission learning time and improve the shift quality.

Owners of these vehicles have filed 277 complaints in the transmission category.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Hyundai Sonata?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history