Note: All VLAND headlights and taillights do not have parking lights/position lights. But can be passively provided by "side marker retroreflectors".
Front position lights (known as parking lights in North America and front sidelights in the UK) provide nighttime standing-vehicle conspicuity. They are designed to use little electricity so they can be left on when parked for prolonged periods of time. Despite the UK term, these are not the same as the side marker lights described below. The front position lights on any vehicle must emit white light, with the exception of motorcycles, which may have amber front position lights.
In Germany, the StVZO (Road Traffic Licensing Regulations) calls for a different function provided by these lights: with the vehicle's ignition switched off, the operator may activate a low-intensity white light at the front and red light at the rear on either the left or right side. This function is used when parking in narrow unlit streets to provide parked-vehicle conspicuity to approaching drivers. This function, which is optional under UN and US regulations, is served passively in the United States by mandatory side marker retroreflectors.
Note: You can disable this feature when your vehicle shows parking lights dashboard warning lights. ("side marker retroreflectors" can replace this feature.)