Mercedes-Benz AMG GLC43 2020–2024 — technical 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).
Vehicles covered
- 2020 Mercedes-Benz AMG GLC43
- 2021 Mercedes-Benz AMG GLC43
- 2022 Mercedes-Benz AMG GLC43
- 2023 Mercedes-Benz AMG GLC43
- 2024 Mercedes-Benz AMG GLC43
- 2020 Mercedes-Benz AMG GLC63
- 2021 Mercedes-Benz AMG GLC63
- 2022 Mercedes-Benz AMG GLC63
- 2020 Mercedes-Benz AMG GLC63 S
- 2021 Mercedes-Benz AMG GLC63 S
- 2022 Mercedes-Benz AMG GLC63 S
- 2023 Mercedes-Benz AMG GLC63 S
- 2024 Mercedes-Benz AMG GLC63 S E
- 2020 Mercedes-Benz GLC 300
- 2021 Mercedes-Benz GLC 300
- 2022 Mercedes-Benz GLC 300
- 2023 Mercedes-Benz GLC 300
- 2024 Mercedes-Benz GLC 300
- 2020 Mercedes-Benz GLC 350
- 2020 Mercedes-Benz GLC 350 E
- 2021 Mercedes-Benz GLC 350 E
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.