RAM 1500 2023 — technical service bulletin
Bulletin 21-054-26 · NHTSA communication 11035056 · issued Jul 9, 2026
Technical service bulletin
communication type
Power Train
component
2023
model years
1
vehicle entries
Official summary
Flash: Transmission Control Module (TCM) Updates Customers may comment on one or more of the following: SYMPTOM: ● Harsh or slipping feeling during upshifts (1st - 5th). ● Harsh or slipping feeling during kickdown events under throttle. ● Transmission fluid odor (burnt smell).
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.