Your motor vehicle is equipped with a lane change assist system without steering intervention. While driving, the warning light flashes on the left-hand exterior rear-view mirror. What is this warning light indicating?

You answered correctly by choosing answer 1 and answer 2. When the lane change assist warning light flashes on the left exterior mirror, it means that another vehicle is detected in your left blind spot or approaching quickly in the adjacent lane. This indicates you should not change lanes to the left at that moment, as it is not safe. The system is warning you of potential danger, so you must wait until the warning signal disappears before changing lanes. The warning does not mean it is safe to change lanes—always stay alert and check your mirrors and blind spot yourself.