NHTSA service bulletin

NHTSA Service Bulletin 11031223: 2025, 2026 Ram 2500

Official manufacturer communication context for 2025, 2026 Ram 2500, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11031223 summary graphic for 2025, 2026 Ram 2500
11031223NHTSA document ID
Manufacturer communicationcommunication type
4affected product rows
4source 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

R1H Radio USB Update to U40.20 Customers may experience one or more of the following: SYMPTOM: Incorrect phone listed on passenger display. Navigation widget black/stuck at loading. Apple carplay icon not present during carplay session. Diesel exhaust brake indicator is yellow/on when starting the vehicle even though the exhaust brake was set to OFF when vehicle ignition was turned off. Brake soft button in on position. Press and hold button stuck. Articulation graphic not updated. Icon overlap in status bar. Pressure in trailer tires set at zero psi. Compass intermittently shows "--" in cluster. Navigation stuck at same location. This bulletin involves inspecting and if required, updating the radio software level to U40.20.

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
Ram25002025, 2026Ask for service records and run the exact VIN before purchase.
Ram35002025, 2026Ask for service records and run the exact VIN before purchase.
Ram45002025, 2026Ask for service records and run the exact VIN before purchase.
Ram55002025, 2026Ask 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 11031223?

R1H Radio USB Update to U40.20 Customers may experience one or more of the following: SYMPTOM: Incorrect phone listed on passenger display. Navigation widget black/stuck at loading. Apple carplay icon not present during carplay session. Diesel exhaust brake indicator is yellow/on when starting the vehicle even though the exhaust brake was set to OFF when vehicle ignition was turned off. Brake soft button in on.

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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