NHTSA service bulletin

NHTSA Service Bulletin 11027659: 2024-2026 Mercedes-benz Amg Cle53 4matic

Official manufacturer communication context for 2024-2026 Mercedes-benz Amg Cle53 4matic, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11027659 summary graphic for 2024-2026 Mercedes-benz Amg Cle53 4matic
11027659NHTSA document ID
Manufacturer communicationcommunication type
10affected product rows
90/100quality 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

Complaint "Key Not Detected" message appears on the IC while driving even though the key is in the car and no doors have been opened. Cause Possible SW Remedy Confirm that the message is not due to the driver's door being opened and that the door latch is reading properly. For vehicles that do not have the above issues, there is SW in development. Current workaround is to ensure that the key is left on the antenna in the storage compartment.

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 Cle53 4matic2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cle53 4matic Cabriolet2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cle53 4matic+2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Cle53 4matic+ Cabriolet2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzCle 3002024Ask for service records and run the exact VIN before purchase.
Mercedes-benzCle 300 4matic2024-2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzCle 300 4matic Cabriolet2024-2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzCle 4502024Ask for service records and run the exact VIN before purchase.
Mercedes-benzCle 450 4matic2024-2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzCle 450 4matic Cabriolet2024-2026Ask 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 11027659?

Complaint "Key Not Detected" message appears on the IC while driving even though the key is in the car and no doors have been opened. Cause Possible SW Remedy Confirm that the message is not due to the driver's door being opened and that the door latch is reading properly. For vehicles that do not have the above issues, there is SW in development. Current workaround is to ensure that the key is left on the antenna.

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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