Genesis G70 2019–2025 — technical service bulletin
Bulletin 21-AT-012G · NHTSA communication 10253038 · issued Jul 27, 2020
Technical service bulletin
communication type
Power Train
component
2019–2025
model years
23
vehicle entries
Official summary
This bulletin provides a procedure to transfer oil pressure data to the TCU using GDS Mobile. This procedure is necessary to reduce the TCU learning time and improve the shift quality. ï · Before replacing an automatic transmission (Pages 2~3): Input the data from the new transmission into the TCU using the GDS. ï · Before replacing a TCU (Pages 4~6): Back up the oil pressure data from the old TCU into the GDS and then transfer the data to the new TCM.
Vehicles covered
- 2019 Genesis G70
- 2020 Genesis G70
- 2021 Genesis G70
- 2022 Genesis G70
- 2019 Genesis G80
- 2020 Genesis G80
- 2021 Genesis G80
- 2022 Genesis G80
- 2019 Genesis G90
- 2020 Genesis G90
- 2021 Genesis G90
- 2022 Genesis G90
- 2023 Genesis G90
- 2024 Genesis G90
- 2022 Genesis GV70
- 2023 Genesis GV70
- 2024 Genesis GV70
- 2025 Genesis GV70
- 2021 Genesis GV80
- 2022 Genesis GV80
- 2023 Genesis GV80
- 2024 Genesis GV80
- 2025 Genesis GV80 Coupe
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.