RAM 1500 2025–2026 — technical service bulletin
Bulletin 9100806 · NHTSA communication 11032337 · issued Apr 27, 2026
Technical service bulletin
communication type
Electrical System
component
2025–2026
model years
2
vehicle entries
Official summary
DTC C008F Calibration Not Learned remains active until the EPB Assembly Check is successfully completed at the vehicle assembly plant. This function is performed using the EPB Assembly Check Routine. Dealers must run the EPB Assembly Check Routine and confirm successful completion before replacing the EPB module, as module replacement should not be performed to address this condition. Note: Replacement modules leave supplier with C008F active.
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.