Infiniti Q50 2017–2020 — technical service bulletin

Bulletin ITB23-022 · NHTSA communication 10240534 · issued Jul 11, 2023

Technical service bulletin

communication type

Power Train

component

2017–2020

model years

vehicle entries

Official summary

Dtc p0744 stored in the tcm if you confirm dtc p0744 (torque converter) is stored as past or current in the tcm. Action follow the service procedure in this bulletin to reprogram the tcm.

Vehicles covered

2017 Infiniti Q50
2018 Infiniti Q50
2019 Infiniti Q50
2020 Infiniti Q50
2017 Infiniti Q60
2018 Infiniti Q60
2019 Infiniti Q60
2020 Infiniti Q60

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.