NHTSA service bulletin

NHTSA Service Bulletin 10178056: 2020 Ford Transit

Official manufacturer communication context for 2020 Ford Transit, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10178056 summary graphic for 2020 Ford Transit
10178056NHTSA document ID
Manufacturer communicationcommunication type
1affected product rows
82/100quality 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

In all of the affected vehicles, the Standard Battery Guard (SBG) feature, typically used by specific third-party converters and upfitters, may not remain active for the period of time specified in the Ford Body & Equipment Mounting Manual (BEMM) after the vehicle is turned off. The SBG feature is used to control accessory power to peripheral devices connected to the vehicle power supply by utilizing the auxiliary fuse panel. For dual-battery equipped vehicles, the SBG can also control accessory power for the Customer Connection Point 2 (CCP2). The SBG feature may timeout prematurely and shut off vehicle accessory power to non-Ford connected peripheral devices at around 15 to 20 minutes rather than the full SBG timeout of 30 minutes on single battery equipped vehicles and 75 minutes on dual-battery equipped vehicles.

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
FordTransit2020Ask 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 10178056?

In all of the affected vehicles, the Standard Battery Guard (SBG) feature, typically used by specific third-party converters and upfitters, may not remain active for the period of time specified in the Ford Body & Equipment Mounting Manual (BEMM) after the vehicle is turned off. The SBG feature is used to control accessory power to peripheral devices connected to the vehicle power supply by utilizing the auxiliary.

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.

Get Full Report