RAM 2500 2025–2026 — technical service bulletin
Bulletin S2609000005 · NHTSA communication 11030430 · issued Mar 27, 2026
Technical service bulletin
communication type
Power Train
component
2025–2026
model years
8
vehicle entries
Official summary
Check Engine Light (CEL) Illuminated Diagnostic Trouble Code (DTC) P0381-00 Wait to Start Lamp Inoperative
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.