When a vehicle is detected, a red warning symbol is displayed in the exterior mirror glass to inform the driver that it may be dangerous to change lanes. If the driver then pursues to switch on the indicators, the red light will start to flash and the driver will be alerted by a warning sound.
This system only adds to the growing list of Mercedes-Benz radar-based safety systems available, such as the PRE-SAFE crash anticipation system, the DISTRONIC PLUS proximity detecting cruise control and the Brake Assist PLUS emergency braking assistance.