A vehicle is provided with multiple object-detecting devices, such as cameras and radar devices, that are configured to detect approaching vehicles from the rear. The object-detecting devices sense the relative distance and speed of the approaching vehicles relative to the vehicle. Based on the relative distance and speed, at least one controller is programmed to determine an anticipated collision time, indicating how long it would take for the upcoming vehicles to potentially collide with the vehicle. The controller can be programmed to illuminate a colored display on a rear-view mirror at a location where an approaching vehicle appears on the mirror, and change a color of the colored display based on the relative distance and relative speed of the approaching vehicle.
展开▼