RAM 1500 2025 — technical service bulletin
Bulletin 08-140-26 REV. A · NHTSA communication 11031427 · issued Apr 16, 2026
Technical service bulletin
communication type
Electrical System
component
2025
model years
1
vehicle entries
Official summary
Flash: Radio Frequency Hub Module (RFHM) Updates Customer may experience one or more of the following: SYMPTOM: ● **Excessive Ignition Off Draw (IOD) on 12v vehicle battery if keys are left within proximity range.** (NA vehicles only). ● RFHM software update fails when attempting to perform a flash. ● Low vehicle battery. ● Key fob is inoperable. ● Proximity is inoperable. This bulletin involves inspecting and possibly reprogramming the RFHM module with the latest available software.
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.