RAM
18-042-25
Manufacturer communications
- Publication date
- 2025-07-02
- Received by NHTSA
- 2025-07-09
- NHTSA record numbers
- 11020625
Manufacturer summary
Original wording in English
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC):
• P0300 - Multiple Cylinder Misfire. Customers may experience one of the following:
• Vehicle runs rough on initial cold start only after an overnight or extended soak. This bulletin involves reprogramming the PCM with the latest available software.
• P0300 - Multiple Cylinder Misfire. Customers may experience one of the following:
• Vehicle runs rough on initial cold start only after an overnight or extended soak. This bulletin involves reprogramming the PCM with the latest available software.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Ram
P0300Multiple Cylinder MisfireCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ram | 1500 | 2025 |