NHTSA service bulletin

NHTSA Service Bulletin 11031867: 2020-2026 Mercedes-benz Amg Glc43

Official manufacturer communication context for 2020-2026 Mercedes-benz Amg Glc43, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11031867 summary graphic for 2020-2026 Mercedes-benz Amg Glc43
11031867NHTSA document ID
Manufacturer communicationcommunication type
12affected 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 The panoramic sliding sunroof operates in a stepped movement. The panoramic roof becomes denormalized without an apparent reason (not directly after control unit replacement). Automatic operation of the glass panel and roller sunblind is not possible; only tipmode operation is available. In combination with one, serval, or all of the following Fault Codes stored in the panoramic roof control unit (PSD, A98, TSSR254): B184954 B184955 B1E7554 B1E7555 Note: Please see LI77.21-P-075807 for complaints of the sliding sunroof panel of panoramic sliding sunroof reverses (temporarily, once, multiple times) during closing process without an entrapment event Cause Resetting the panoramic roof control unit (PSD A98 / TSSR254) can lead to loss of normalization. The root cause for the control unit reset is currently under investigation. Remedy Contribution to cause analysis: Print the attached document Panoramic Roof Customer Questionnaire. Complete the questionnaire together with the customer. Open a TIPS case and attach the completed questionnaire. Submit the TIPS case to the Body / Chassis / Entertainment inbox. Repair: Perform Initial StartUp of the panoramic roof control unit (PSD A98 / TSSR254).

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 Glc432024Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc43 4matic2024-2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc43 4matic Coupe2024, 2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc63 S E2024, 2025Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc63 S E 4matic+2025, 2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzAmg Glc63 S E 4matic+ Coupe2025, 2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzGlc 3002020-2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzGlc 300 4matic2023-2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzGlc 300 4matic Coupe2024-2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzGlc 300 Coupe2024Ask for service records and run the exact VIN before purchase.
Mercedes-benzGlc 350 E 4matic2025, 2026Ask for service records and run the exact VIN before purchase.
Mercedes-benzGlc43 4matic Coupe2026Ask 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 11031867?

Complaint The panoramic sliding sunroof operates in a stepped movement. The panoramic roof becomes denormalized without an apparent reason (not directly after control unit replacement). Automatic operation of the glass panel and roller sunblind is not possible; only tipmode operation is available. In combination with one, serval, or all of the following Fault Codes stored in the panoramic roof control unit (PSD,.

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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