RAM 1500 2026 — technical service bulletin
Bulletin 18-059-26 · NHTSA communication 11033875 · issued Jun 6, 2026
Technical service bulletin
communication type
Power Train
component
2026
model years
1
vehicle entries
Official summary
Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P2AF6-00 - Starter Relay 3 Stuck Off (with PCR). ● P00FD - Battery B State Of Charge Performance.** ● P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected (In Active or Stored status). ● P0111-00 - Intake Air Temperature Sensor 1 Circuit Performance (In Active or Stored status). ● P0071-00 - Ambient Air Temperature Sensor Performance (In Active or Stored status). ● P
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.