Nissan Frontier 2020–2021 — technical service bulletin
Bulletin NTB21-073 · NHTSA communication 10201220 · issued Aug 6, 2021
Technical service bulletin
communication type
Engine
component
2020–2021
model years
2
vehicle entries
Official summary
HESITATION AND/OR SHIFT SHOCK IF YOU CONFIRM The customer reports hesitation and/or shift shock during acceleration, OR Shift shock during deceleration, AND There are no TCM related DTCs stored. ACTION 1. Confirm the current TCM part number. 2. Reprogram the TCM, if applicable.
Vehicles covered
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.