Mercedes-Benz AMG EQS 2021–2023 — technical service bulletin
Bulletin LI54.71-P-075704 · NHTSA communication 10231027 · issued Jan 4, 2023
Technical service bulletin
communication type
Electrical System
component
2021–2023
model years
15
vehicle entries
Official summary
Complaint Message in IC: "Active Brake Assist function restricted". "Active Emergency Stop Assist inoperative" "Active Lane Keeping Assist inoperative" "Active Blind Spot Assist inoperative" Note: The problem can occur after a software update of control unit N62/4 - Driver assistance system A quick test may not show any relevant fault codes related to the IC messages. Cause In rare cases, it may be that no automatic SCN coding was performed after control unit N62/4- driver assistance system was programmed. Remedy Perform SCN coding of N62/4 Driver assistance system
Vehicles covered
- 2022 Mercedes-Benz AMG EQS
- 2021 Mercedes-Benz AMG S63
- 2022 Mercedes-Benz C 300
- 2022 Mercedes-Benz EQS 450
- 2023 Mercedes-Benz EQS450
- 2022 Mercedes-Benz EQS 580
- 2021 Mercedes-Benz S 500
- 2022 Mercedes-Benz S 500
- 2021 Mercedes-Benz S 560
- 2021 Mercedes-Benz S 580
- 2022 Mercedes-Benz S 580
- 2021 Mercedes-Maybach S 560
- 2021 Mercedes-Maybach S 580
- 2022 Mercedes-Maybach S 580
- 2022 Mercedes-Maybach S 680
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.