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February 4, 2026 Service bulletin

Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL)...

Ram technical service bulletin 18-015-26 for 2024 Ram 1500.

Bulletin number
18-015-26
Component
Electrical system
Summary
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): lP0300-00 - Multiple Cylinder Misfire - in Active or Stored status set during cold start catalyst heating. lP0301-00 - Cylinder 1 Misfire - in Active or Stored status set during cold start catalyst heating. lP0302-00 - Cylinder 2 Misfire - in Active or Stored status set during cold start catalyst heating. lP0303-00 - Cylinder 3 Misfire - in Active or Stored status set during cold start catalyst heating. lP0304-00 - Cylinder 4 Misfire - in Active or Stored status set during cold start catalyst heating. lP0305-00 - Cylinder 5 Misfire - in Active or Stored status set during cold start catalyst heating. lP0306-00 - Cylinder 6 Misfire - in Active or Stored status set during cold start catalyst heating. Customers may also comment on one or more of the following: lVehicle has a rough idle. lEngine has a miss. lNoisy valvetrain. This bulletin involves reprogramming the PCM with the latest available software.

Owners of these vehicles have filed 28 complaints in the electrical category.

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