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April 17, 2026 Service bulletin

Head-up display flickers

Mercedes-Benz technical service bulletin LI54.30-P-080421 for 2020-2024 Mercedes-Benz GLE 350, 2020-2021 Mercedes-Benz GLS 450 and 2020-2024 Mercedes-Benz GLE 450 and others.

Bulletin number
LI54.30-P-080421
Component
Electrical system
Summary
Complaint Head-up display flickers Cause Software A 40/12 - Head-up display and N133/1 - Instrument cluster (IC). Remedy Please do not replace any parts. Step1: Please add SA code 2O8 to the vehicle. Step2: Update the HUD177 to the latest SW Step3: Update the IC177M software update to the latest available version (software A1779048302 ) (E216.0)

Owners of these vehicles have filed 150 complaints in the electrical category.

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