RAM 1500 2025–2026 — technical service bulletin
Bulletin S2623000029 · NHTSA communication 11032341 · issued Apr 29, 2026
Technical service bulletin
communication type
Electrical System
component
2025–2026
model years
10
vehicle entries
Official summary
B235c-64-trailer connection - signal plausibility failure diagnostic trouble code (dtc) set.
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.