What causes the automatic opening of the sunroof in the Mercedes GLC?

[LaneMarie]

The reason for the automatic opening of the sunroof in the Mercedes GLC is that the vehicle has been parked for an extended period, causing the battery voltage to drop too low. A disconnected or low-voltage battery can affect the sunroof's initialization settings, leading the sunroof control unit to fail to recognize the exact position of the sunroof, resulting in misjudgment and incorrect operation of the sunroof. Below are some recommendations for sunroof usage: 1. If the vehicle has been parked for a long time and the power supply voltage is too low, the battery should be recharged, and the sunroof should be reinitialized. 2. Regularly clean and maintain the sunroof track. 3. The sunroof mainly consists of a glass window, sealing rubber strips, and a driving mechanism. The opening styles are generally categorized into external sliding panel, internal sliding panel, and tilting types.