NHTSA Service Bulletin 11023602: 2025 Ram 1500
Official manufacturer communication context for 2025 Ram 1500, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.
Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.
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): **P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking - in ACTIVE or STORED status. P0325-00 - Knock/Combustion Vibration Sensor 1 Circuit - in ACTIVE or STORED status. P0330-00 - Knock/Combustion Vibration Sensor 2 Circuit - in ACTIVE or STORED status. P032A-00 - Knock-Combustion Vibration Sensor C Circuit - in ACTIVE or STORED status. P018B-00 - Fuel Pressure Sensor "B" Circuit Range/performance - in ACTIVE or STORED status. P2AF6-00 - Starter Relay 3 Stuck Off - in ACTIVE or STORED status. P0300-00 - Multiple Cylinder Misfire - in ACTIVE or STORED status set during cold start catalyst heating. P0301-00 - Cylinder 1 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. P0302-00 - Cylinder 2 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. P0303-00 - Cylinder 3 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. P0304-00 - Cylinder 4 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. P0305-00 - Cylinder 5 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. P0306-00 - Cylinder 6 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. NOTE: To confirm the cold start catalyst heating, use WiTech Freeze Frame data, and confirm "Time Since Engine Start" less than 30 seconds and "Engine Coolant Temperature F" less than 122F (50C) when Misfire Code was set. See Step 3 for more details. U0104-00 - Lost Communication With Cruise Control Module - in ACTIVE or STORED status. This software flash will allow these permanent fault codes to naturally clear. U0405-00 - Invalid Data Received From Cruise Control Module - in ACTIVE or STORED status. This software flash will allow these permanent fault codes to naturally clear.** Customers may experience the following: A potential to stall when coming to a stop with an immediate restart. If the engine were to stall while stopping, a message would display in the Instrument Panel Cluster (IPC) informing the driver to shift to park to restart the engine This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software.
What this bulletin may mean before buying
Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.
Affected products listed in this communication
Buyer checklist
- Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
- Check recall campaign pages for safety actions that may require dealer repair.
- Compare this bulletin with common problem pages for the same model and component area.
- Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
- Use the used-car buying checklist and get an independent inspection.
Frequently asked questions
What is NHTSA service bulletin 11023602?
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): **P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking - in ACTIVE or STORED status. P0325-00 - Knock/Combustion Vibration Sensor 1 Circuit - in ACTIVE or STORED status. P0330-00 - Knock/Combustion.
Is a service bulletin the same as a recall?
No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.
How should a used-car buyer use this bulletin?
Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.
Check the exact VIN before you buy
Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.
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