NHTSA service bulletin

NHTSA Service Bulletin 10244738: 2021-2024 Mercedes-benz Amg S63

Official manufacturer communication context for 2021-2024 Mercedes-benz Amg S63, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10244738 summary graphic for 2021-2024 Mercedes-benz Amg S63
10244738NHTSA document ID
Manufacturer communicationcommunication type
8affected 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

Following a software update of the head unit to FUP3 variant 316.5 or higher, the "Residual heat" button is no longer displayed in the air conditioning system operating menu. A26/17 head unit MBUX software There is currently no remedy available. Replacing the hardware will not remedy the problem. A software update is intended with the FUP4 software E444.x (planned release for Q4/23)

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
Mercedes-benzAmg S632021Ask for service records and run the exact VIN before purchase.
Mercedes-benzS 5002021-2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzS 5602021Ask for service records and run the exact VIN before purchase.
Mercedes-benzS 5802021-2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzS 580 E2023, 2024Ask for service records and run the exact VIN before purchase.
Mercedes-maybachS 5602021Ask for service records and run the exact VIN before purchase.
Mercedes-maybachS 5802021-2023Ask for service records and run the exact VIN before purchase.
Mercedes-maybachS 6802022-2024Ask 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 10244738?

Following a software update of the head unit to FUP3 variant 316.5 or higher, the "Residual heat" button is no longer displayed in the air conditioning system operating menu. A26/17 head unit MBUX software There is currently no remedy available. Replacing the hardware will not remedy the problem. A software update is intended with the FUP4 software E444.x (planned release for Q4/23)

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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