RAM 2500 2025–2026 — technical service bulletin
Bulletin S2621000002 REV.A · NHTSA communication 11030263 · issued Mar 19, 2026
Technical service bulletin
communication type
Engine
component
2025–2026
model years
8
vehicle entries
Official summary
The customer concern is Service Transmission, preventing the engine from shutting off. NOTE: The transmission will be in Park and able to hold the vehicle, but the cluster display would indicate Neutral, preventing the engine from shutting off.
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.