Mercedes-Benz AMG EQS 2021–2026 — technical service bulletin
Bulletin ANN - S/223_EQS/297 · NHTSA communication 11034108 · issued Jun 25, 2026
Technical service bulletin
communication type
Electrical System
component
2021–2026
model years
57
vehicle entries
Official summary
For awareness, after SW update of control unit, IC223, on models 223 and 297, seat belt lamp and chime remains on. Thank you for your patience while we find a solution.
Vehicles covered
- 2022 Mercedes-Benz AMG EQS
- 2023 Mercedes-Benz AMG EQS
- 2024 Mercedes-Benz AMG EQS
- 2023 Mercedes-Benz AMG EQS 4MATIC+
- 2024 Mercedes-Benz AMG EQS 4MATIC+
- 2025 Mercedes-Benz AMG EQS 4MATIC+
- 2024 Mercedes-Benz AMG S 63 E
- 2025 Mercedes-Benz AMG S 63 E 4MATIC+
- 2026 Mercedes-Benz AMG S 63 E 4MATIC+
- 2022 Mercedes-Benz EQS 450+
- 2023 Mercedes-Benz EQS 450+
- 2024 Mercedes-Benz EQS 450+
- 2025 Mercedes-Benz EQS 450+
- 2026 Mercedes-Benz EQS 450+
- 2023 Mercedes-Benz EQS 450 4MATIC
- 2024 Mercedes-Benz EQS 450 4MATIC
- 2025 Mercedes-Benz EQS 450 4MATIC
- 2026 Mercedes-Benz EQS 450 4MATIC
- 2022 Mercedes-Benz EQS 580
- 2023 Mercedes-Benz EQS 580
- 2024 Mercedes-Benz EQS 580
- 2022 Mercedes-Benz EQS 580 4MATIC
- 2023 Mercedes-Benz EQS 580 4MATIC
- 2024 Mercedes-Benz EQS 580 4MATIC
- 2025 Mercedes-Benz EQS 580 4MATIC
- 2026 Mercedes-Benz EQS 580 4MATIC
- 2021 Mercedes-Benz S 500
- 2022 Mercedes-Benz S 500
- 2023 Mercedes-Benz S 500
- 2024 Mercedes-Benz S 500
- 2023 Mercedes-Benz S 500 4MATIC
- 2025 Mercedes-Benz S 500 4MATIC
- 2026 Mercedes-Benz S 500 4MATIC
- 2021 Mercedes-Benz S 580
- 2022 Mercedes-Benz S 580
- 2023 Mercedes-Benz S 580
- 2024 Mercedes-Benz S 580
- 2023 Mercedes-Benz S 580 4MATIC
- 2025 Mercedes-Benz S 580 4MATIC
- 2026 Mercedes-Benz S 580 4MATIC
- 2023 Mercedes-Benz S 580 E
- 2024 Mercedes-Benz S 580 E
- 2023 Mercedes-Benz S 580 E 4MATIC
- 2025 Mercedes-Benz S 580 E 4MATIC
- 2026 Mercedes-Benz S 580 E 4MATIC
- 2021 Mercedes-Maybach S 580
- 2022 Mercedes-Maybach S 580
- 2023 Mercedes-Maybach S 580
- 2024 Mercedes-Maybach S 580
- 2025 Mercedes-Maybach S 580 4MATIC
- 2026 Mercedes-Maybach S 580 4MATIC
- 2022 Mercedes-Maybach S 680
- 2023 Mercedes-Maybach S 680
- 2024 Mercedes-Maybach S 680
- 2023 Mercedes-Maybach S 680 4MATIC
- 2025 Mercedes-Maybach S 680 4MATIC
- 2026 Mercedes-Maybach S 680 4MATIC
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.