How can you tell whether the rear fog lamp is switched on?

The rear fog lamp indicator is designed to alert the driver when the fog lights are active. In Germany, as per the traffic regulations, the rear fog lamp is typically indicated by an amber warning light on the dashboard. This is important because it informs the driver that the fog lights are on, which can be crucial for visibility in low-visibility conditions such as fog or heavy rain.

In some vehicles, there may also be a separate blue indicator light for the front fog lamps, and a red indicator light for brake lights, but these do not relate to the rear fog lamp. Thus, recognizing the amber light is essential to ensure safe driving. Always ensure that your rear fog lights are used appropriately, as using them in clear conditions can be distracting to other drivers and is against traffic regulations.