NHTSA service bulletin

NHTSA Service Bulletin 11028237: 2025 Ram 4500

Official manufacturer communication context for 2025 Ram 4500, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11028237 summary graphic for 2025 Ram 4500
11028237NHTSA document ID
Manufacturer communicationcommunication type
2affected product rows
2source rows grouped

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

Flash: Powertrain Control Module (PCM) Updates V2C 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): P06B9-00 - Cylinder 1 Glow Plug Circuit Performance. P06BA-00 - Cylinder 2 Glow Plug Circuit Performance. P06BB-00 - Cylinder 3 Glow Plug Circuit Performance. P06BC-00 - Cylinder 4 Glow Plug Circuit Performance. P06BD-00 - Cylinder 5 Glow Plug Circuit Performance. P06BE-00 - Cylinder 6 Glow Plug Circuit Performance. P0263-00 - Cylinder 1 Contribution/balance. P0266-00 - Cylinder 2 Contribution-balance. P0269-00 - Cylinder 3 Contribution/balance. P0272-00 - Cylinder 4 Contribution/balance. P0275-00 - Cylinder 5 Contribution/balance. P0278-00 - Cylinder 6 Contribution/balance. P026B-00 - Injection Timing Performance. P020A-00 - Cylinder 1 Injection Timing. P020B-00 - Cylinder 2 Injection Timing. P020C-00 - Cylinder 3 Injection Timing. P020D-00 - Cylinder 4 Injection Timing. P020E-00 - Cylinder 5 Injection Timing. P020F-00 - Cylinder 6 Injection Timing. P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low. P0087-00 - Fuel Rail Pressure Too Low. P2540-00 - Low Pressure Fuel System Sensor Circuit Range/Performance. P2543-00 - Low Pressure Fuel System Sensor Circuit Intermittent. P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold - Bank 1 Catalyst 1. P203F-00 - Reductant Level Too Low. P2698-00 - Exhaust Aftertreatment Fuel Injector "A" Performance. P1C54-00 - SCR NOX Catalyst Missing. P056E-00 - Cold Start Turbocharger/Supercharger Boost Control "A" Performance. P242F-00 - Diesel Particulate Filter Restriction - Ash Accumulation. P1451-00 - Diesel Particulate Filter System Performance. M18 FSAR-TSB-6454 -2- P0234-00 - Turbocharger Overboost Condition. P20E8-00 - Reductant Pressure Too Low. P208B-00 - Reductant Pump 1 Control Performance. Customers may also comment on one or more of

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

MakeModelModel yearsBuyer note
Ram45002025Ask for service records and run the exact VIN before purchase.
Ram55002025Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 11028237?

Flash: Powertrain Control Module (PCM) Updates V2C 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): P06B9-00 - Cylinder 1 Glow Plug Circuit Performance. P06BA-00 - Cylinder 2 Glow Plug Circuit Performance. P06BB-00 - Cylinder 3 Glow Plug Circuit Performance. P06BC-00 - Cylinder 4 Glow Plug Circuit.

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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