NHTSA service bulletin

NHTSA Service Bulletin 10250870: Cummins Ev1048

Official manufacturer communication context for model years not specified Cummins Ev1048, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10250870 summary graphic for model years not specified Cummins Ev1048
10250870NHTSA document ID
Manufacturer communicationcommunication type
2affected product rows
83/100quality score

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

This TRP is being issued to update the Thermal Management System on some early built buses in order to be compatible with a harness that contains a fix for Controller Area Network (CAN) interference. This TRP authorizes certified repair locations to complete the up-fit any time the unit is in for maintenance or repairs, with certain restrictions on reimbursement. This is an update to the previously submitted communication.

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
CumminsEv1048model years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsPd7000model years not specifiedAsk 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 10250870?

This TRP is being issued to update the Thermal Management System on some early built buses in order to be compatible with a harness that contains a fix for Controller Area Network (CAN) interference. This TRP authorizes certified repair locations to complete the up-fit any time the unit is in for maintenance or repairs, with certain restrictions on reimbursement. This is an update to the previously submitted.

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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