NHTSA service bulletin

NHTSA Service Bulletin 10189725: 2021 Thor Motor Coach Axis

Official manufacturer communication context for 2021 Thor Motor Coach Axis, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10189725 summary graphic for 2021 Thor Motor Coach Axis
10189725NHTSA document ID
Manufacturer communicationcommunication type
2affected product rows
90/100quality 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

The steel tube backer in the coach floor may not have been installed in the correct location to adequately secure the gray water holding tank underneath the 2021 24.3 Axis & Vegas motorhomes. This procedure is to be used to add a Z bracket to the bottom of the rear-most cross member in the chassis of the 24.3 Axis/Vegas product. This new bracket is intended to replace the Z brackets that are currently installed near the top of the tank above the cross member because of inadequate backer in the unit floor

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
Thor Motor CoachAxis2021Ask for service records and run the exact VIN before purchase.
Thor Motor CoachVegas2021Ask 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 10189725?

The steel tube backer in the coach floor may not have been installed in the correct location to adequately secure the gray water holding tank underneath the 2021 24.3 Axis & Vegas motorhomes. This procedure is to be used to add a Z bracket to the bottom of the rear-most cross member in the chassis of the 24.3 Axis/Vegas product. This new bracket is intended to replace the Z brackets that are currently installed.

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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