NHTSA service bulletin

NHTSA Service Bulletin 10185571: 2021 Holiday Rambler Endeavor

Official manufacturer communication context for 2021 Holiday Rambler Endeavor, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10185571 summary graphic for 2021 Holiday Rambler Endeavor
10185571NHTSA document ID
Service campaigncommunication 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

The attached owner notification letter regarding Product Upgrade campaign 201217REV was mailed 1/15/2021 to the owners of certain model year 2021 Holiday Rambler Endeavor (manufactured 6/24/2020- 9/28/2020) and Navigator (manufactured 6/24/2020- 9/4/2020) Class A diesel motorhomes. The purpose of this owner notification letter is to inform the owners of certain model year 2021 Holiday Rambler brand Endeavor and Navigator Class A diesel motorhomes about Product Upgrade 201217REV. On motorhomes affected by this Product Upgrade, there may be inadequate clearance between the oil fill tube and adjacent chassis components. Adjusting the position of the oil fill tube mounting bracket will correct this condition.

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
Holiday RamblerEndeavor2021Ask for service records and run the exact VIN before purchase.
Holiday RamblerNavigator2021Ask 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 10185571?

The attached owner notification letter regarding Product Upgrade campaign 201217REV was mailed 1/15/2021 to the owners of certain model year 2021 Holiday Rambler Endeavor (manufactured 6/24/2020- 9/28/2020) and Navigator (manufactured 6/24/2020- 9/4/2020) Class A diesel motorhomes. The purpose of this owner notification letter is to inform the owners of certain model year 2021 Holiday Rambler brand Endeavor and.

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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