Mercedes-Benz AMG GLC43 2023–2024 — technical service bulletin
Bulletin NCU-2023120004 · NHTSA communication 10248167 · issued Dec 14, 2023
Technical service bulletin
communication type
Structure
component
2023–2024
model years
6
vehicle entries
Official summary
Mercedes-Benz AG (â  MBAGâ  ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2023 GLC (254 platform) vehicles, the panoramic sliding sunroof control unit software does not correspond to the latest series production configuration. In rare cases, the sensitivity of the automatic reversing function may prompt an incorrect reversal of the sliding sunroof panel. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the Panoramic Sliding Sunroof Control Unit software.
Vehicles covered
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.