― Dirt, ice or snow is adhering to the rear bumper surface.
― The vehicle is driven in heavy rain or snowfall, or under conditions where water on the road is sprayed by the vehicle.
― The vehicle is towing a trailer.
― The vehicle accelerates from a standing-start with a target vehicle alongside.
― A target vehicle moves laterally from a lane two lanes over to the adjacent lane.
― The difference in vehicle speed between the vehicle and a target vehicle is higher with the target vehicle passing through the detection area in a very short period.
― On a steep incline, or if there is a difference in height between lanes.