NHTSA service bulletin

NHTSA Service Bulletin 10235085: 2021-2023 Ford Mustang Mach E

Official manufacturer communication context for 2021-2023 Ford Mustang Mach E, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10235085 summary graphic for 2021-2023 Ford Mustang Mach E
10235085NHTSA document ID
Over-the-air software updatecommunication type
1affected product rows
1source 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

Some 2021-2023 Mustang Mach-E vehicles may experience loss of phone as a key after an over the air (OTA) update. There may also be diagnostic trouble code (DTC) U0214 stored various modules for loss of communication with the remote function actuator (RFA) module. This may be due to software in the RFA module causing it be locked/stuck in programming mode. To restore phone as a key functionality for the customer and RFA communication, remove RFA fuse (F18/19) located in the body control module (BCM) for one minute and plug it back in. Reprogram the RFA module using the latest software level of the Ford Diagnosis and Repair System (FDRS). For claiming, use causal part 14G617 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.

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
FordMustang Mach E2021-2023Ask 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 10235085?

Some 2021-2023 Mustang Mach-E vehicles may experience loss of phone as a key after an over the air (OTA) update. There may also be diagnostic trouble code (DTC) U0214 stored various modules for loss of communication with the remote function actuator (RFA) module. This may be due to software in the RFA module causing it be locked/stuck in programming mode. To restore phone as a key functionality for the customer 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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