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RecallGazette

Vehicle problems, recalls & safety intelligence

Mercedes-Benz AMG GLC43 2020–2025technical service bulletin

Bulletin LI77.21-P-075807 · NHTSA communication 11013336 · issued Jan 23, 2025

Technical service bulletin
communication type
Electrical System
component
2020–2025
model years
24
vehicle entries

Official summary

Complaint Sliding sunroof panel of panoramic sliding sunroof reverses (temporarily, once, multiple times) during closing process without entrapment event: a) from tilt position b) from sliding position Cause a) Sensitive parameterization of the automatic reversing function of the panoramic roof b) Sluggish operation through tolerances of various component parts in the roof mechanism, in particular, at higher temperatures Remedy a) Leave the sliding sunroof panel of the panoramic roof in the rear sliding position (fully open position) for at least 30 minutes (or overnight if necessary), then pe

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.