NHTSA service bulletin

NHTSA Service Bulletin 10208108: 2021, 2022 Ford Explorer

Official manufacturer communication context for 2021, 2022 Ford Explorer, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10208108 summary graphic for 2021, 2022 Ford Explorer
10208108NHTSA document ID
Manufacturer communicationcommunication type
1affected product rows
92/100quality 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

Some 2021-2022 Explorer vehicles equipped with a 2.3L EcoBoost engine and built on 01-Aug-2021 and through 03-Jan-2022 may exhibit a lack of rear heat. This may be due to incorrectly routed coolant hoses in the engine bay. To correct the condition, inspect the 90 degree quick connect coolant hoses attached to the heater outlet hose on the driver's side of the engine. The 90 degree quick connect cooling hose with the shorter abrasion sleeve should be installed on the front port connection of the heater outlet hose, and the 90 degree quick connect cooling hose with the longer abrasion sleeve should be installed on the rear port connection of the heater outlet hose. If the coolant hoses are twisted or installed incorrectly on the heater outlet hose, remove and reinstall them correctly. Refer to Work Shop Manual (WSM), Section 303-03A.

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

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 10208108?

Some 2021-2022 Explorer vehicles equipped with a 2.3L EcoBoost engine and built on 01-Aug-2021 and through 03-Jan-2022 may exhibit a lack of rear heat. This may be due to incorrectly routed coolant hoses in the engine bay. To correct the condition, inspect the 90 degree quick connect coolant hoses attached to the heater outlet hose on the driver's side of the engine. The 90 degree quick connect cooling hose with.

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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