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RecallGazette

Vehicle problems, recalls & safety intelligence

Mercedes-Benz AMG GLC43 2020–2024technical service bulletin

Bulletin LI77.21-P-075807 · NHTSA communication 10244745 · issued Oct 2, 2023

Technical service bulletin
communication type
Visibility
component
2020–2024
model years
21
vehicle entries

Official summary

Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, multiple times) during closing process without entrapment event. Sensitive parameterization of the automatic reversing function of the panoramic roof. Perform SW update of panoramic roof control unit (PSD, A98, TSSR254).

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.