What is the button with a wavy line next to the mirror adjustment button on the T-Roc?

[DeMarley]

It is the rearview mirror heating switch for the T-Roc, usually located next to the exterior mirror adjustment button, which is a rectangular button with a wavy line. Car rearview mirrors: The rearview mirror is a tool that allows the driver to directly obtain external information about the rear, side, and lower parts of the car while seated in the driver's seat. For the convenience of the driver and to prevent traffic safety accidents and ensure personal safety, all countries require that cars must be equipped with rearview mirrors, and all rearview mirrors must be adjustable in direction. The function of rearview mirror heating: This feature is generally used in rainy, snowy, or very cold weather when the rearview mirror accumulates a layer of fog. With one press of the heating button, the mirror surface can quickly become clear and bright, ensuring driving safety.