RAM 1500 2026 — technical service bulletin
Bulletin 08-139-26 · NHTSA communication 11030419 · issued Mar 28, 2026
Technical service bulletin
communication type
Electrical System
component
2026
model years
1
vehicle entries
Official summary
Flash: Radio Frequency Hub Module (RFHM) Updates Customer may experience the following: SYMPTOM: ● 12V vehicle battery dies if keys are left within proximity range. 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.