NHTSA service bulletin

NHTSA Service Bulletin 10079683: 2014 Champion American

Official manufacturer communication context for 2014 Champion American, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10079683 summary graphic for 2014 Champion American
10079683NHTSA document ID
Warranty program / extensioncommunication type
22affected product rows
80/100quality 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

HEATER VALVES MUST BE OPENED WHILE REAR HEATERS ARE RUNNING. FAILURE TO DO SO WILL RESULT IN FAILURE OF THE HEAT PUMP, VOIDING THE WARRANTY ON THE COMPONENTS. THIS PROCEDURE IS NOT NECESSARY IF YOU VEHICLE IS EQUIPPED WITH ELECTRIC OR VACUUM DRIVEN SHUT OFF VALVES.

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
ChampionAmerican2014Ask for service records and run the exact VIN before purchase.
ChampionAmerican Coach2014Ask for service records and run the exact VIN before purchase.
ChampionAmerican Crusader2014Ask for service records and run the exact VIN before purchase.
Champion BusDefender2014Ask for service records and run the exact VIN before purchase.
ChampionChallenger2014Ask for service records and run the exact VIN before purchase.
ChampionCorporal2014Ask for service records and run the exact VIN before purchase.
ChampionCrusader2014Ask for service records and run the exact VIN before purchase.
ChampionCts-fe2014Ask for service records and run the exact VIN before purchase.
ChampionCts-re2014Ask for service records and run the exact VIN before purchase.
ChampionDefender2014Ask for service records and run the exact VIN before purchase.
ChampionDfuc2014Ask for service records and run the exact VIN before purchase.
ChampionEz-street2014Ask for service records and run the exact VIN before purchase.
ChampionEz-trans2014Ask for service records and run the exact VIN before purchase.
ChampionHc2014Ask for service records and run the exact VIN before purchase.
ChampionHc American2014Ask for service records and run the exact VIN before purchase.
ChampionHcac2014Ask for service records and run the exact VIN before purchase.
ChampionLf Transport2014Ask for service records and run the exact VIN before purchase.
ChampionM12352014Ask 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 10079683?

HEATER VALVES MUST BE OPENED WHILE REAR HEATERS ARE RUNNING. FAILURE TO DO SO WILL RESULT IN FAILURE OF THE HEAT PUMP, VOIDING THE WARRANTY ON THE COMPONENTS. THIS PROCEDURE IS NOT NECESSARY IF YOU VEHICLE IS EQUIPPED WITH ELECTRIC OR VACUUM DRIVEN SHUT OFF VALVES.

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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