NHTSA service bulletin

NHTSA Service Bulletin 10177543: 2020 Mercedes-benz Amg S63

Official manufacturer communication context for 2020 Mercedes-benz Amg S63, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10177543 summary graphic for 2020 Mercedes-benz Amg S63
10177543NHTSA document ID
Manufacturer communicationcommunication type
7affected 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

The software for the transmission control unit on the above model series vehicles transferred to you does not correspond to the current series production configuration. Because of this, the transmission may not shift beyond third gear when in automatic drive program D. Manual shift operation beyond third gear is still possible using the paddle shifters.

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 S632020Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg S652020Ask for service records and run the exact VIN before purchase.
Mercedes-benzS 4502020Ask for service records and run the exact VIN before purchase.
Mercedes-benzS 5502020Ask for service records and run the exact VIN before purchase.
Mercedes-benzSl 4502020Ask for service records and run the exact VIN before purchase.
Mercedes-benzSl 5502020Ask for service records and run the exact VIN before purchase.
Mercedes-benzSlc 3002020Ask 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 10177543?

The software for the transmission control unit on the above model series vehicles transferred to you does not correspond to the current series production configuration. Because of this, the transmission may not shift beyond third gear when in automatic drive program D. Manual shift operation beyond third gear is still possible using the paddle shifters.

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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