Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious...
Mercedes-Benz technical service bulletin LI54.71-P-079104 for 2022-2026 Mercedes-Benz C300, 2025-2026 Mercedes-Benz E350 and 2023-2026 Mercedes-Benz GLC 300 and others.
- Bulletin number
- LI54.71-P-079104
- Component
- Electrical system
- Summary
- Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: • Flashing without a speed limit ("‑ ‑"). • Flashing when current vehicle speed is under speed limit. • Flashing between US speed limit symbol and European speed limit symbol. NOTE: • Verify that the concern falls under one of the attachment videos. If not, then it is outside of the scope of this LI. • This also does not cover "Traffic Sign Inoperative" messages on the instrument cluster. Cause There are two identified reasons for this concern: 1. Country code information stored incorrectly at a particular geographic latitude range. 2. Incorrect reference data when the vehicle is started and a GPS signal is not immediately available. Remedy Update head unit software to latest version and the re‑check function in the same location. If vehicle is still exhibiting one of the symptoms as described exactly as in the complaint section or as shown in the video attachments, open a TIPS case to the Body/Chassis/Entertainment inbox with the following: • Video of the concern. • Exact location (latitude and longitude is best)
Owners of these vehicles have filed 338 complaints in the electrical category.
Vehicles covered
- Mercedes-Benz C300 2022-2026 20222023202420252026
- Mercedes-Benz E350 2025-2026 20252026
- Mercedes-Benz GLC 300 2023-2026 2023202420252026
- Mercedes-Benz GLE 350 2020-2023 2020202120222023
- Mercedes-Benz GLS 450 2020-2021 20202021
- Mercedes-Benz GLE 450 2020-2023 2020202120222023
- Mercedes-Benz EQS 450 2022-2026 20222023202420252026
- Mercedes-Benz E 450 2024 2024
- Mercedes-Benz AMG C43 2023-2024 20232024
- Mercedes-Benz GLS 450 4matic 2022-2025 2022202320242025
- Mercedes-Benz Gle 350 4matic 2021-2026 202120222023202420252026
- Mercedes-Benz S 580 2021, 2023 20212023
- Mercedes-Benz S 580 4matic 2022-2026 20222023202420252026
- Mercedes-Benz AMG Glc43 2024-2026 202420252026
- Mercedes-Benz GLC 300 4matic 2023-2026 2023202420252026
- Mercedes-Benz AMG Gle53 2021-2022 20212022
- Mercedes-Benz EQE 350+ 2023-2026 2023202420252026
- Mercedes-Benz GLC 350 E 4matic 2025-2026 20252026
- Mercedes-Benz S 500 4matic 2022-2026 20222023202420252026
- Mercedes-Benz EQS 580 2022-2024 202220232024
- Mercedes-Benz AMG Gle53 4matic+ 2023-2025 202320242025
- Mercedes-Benz Gle 450 4matic 2021-2026 202120222023202420252026
- Mercedes-Benz Gle 450e 4matic 2024-2025 20242025
- Mercedes-Benz GLS 580 4matic 2020, 2022-2025 20202022202320242025
- Mercedes-Benz Eqe 350 4matic 2023-2025 202320242025
- Mercedes-Benz E 450 4matic 2024-2026 202420252026
- Mercedes-Benz AMG Eqs 2022-2024 202220232024
- Mercedes-Benz Eqs 580 4matic 2022-2026 20222023202420252026
- Mercedes-Benz EQE 500 2023-2025 202320242025
- Mercedes-Benz Eqs 450 4matic 2023-2026 2023202420252026
- Mercedes-Benz E 350 4matic 2024-2026 202420252026
- Mercedes-Benz AMG Gls63 2021-2022, 2026 202120222026
- Mercedes-Benz GLE 580 2020-2021 20202021
- Mercedes-Benz AMG SL63 2022-2023, 2025 202220232025
- Mercedes-Benz C 300 4matic 2022-2026 20222023202420252026
- Mercedes-Benz GLS580 2021 2021
- Mercedes-Benz Eqs SUV 580 4matic 2023-2025 202320242025
- Mercedes-Benz CLE 300 2024 2024
- Mercedes-Benz AMG GT43 2025-2026 20252026
- Mercedes-Benz AMG SL55 2022-2025 2022202320242025
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