The **direction indicators** are lights used to warn other drivers that a vehicle is going to turn or move to the right or left. It is important to turn them on whenever there is a change of direction, sense, or lane. However, they can also be used to signal any **lateral movement**, even if it does not involve a lane change. This is because their main function is to warn other road users about any lateral movement the vehicle is going to make, thus ensuring safety in traffic. Therefore, the correct answer is that **yes**, direction indicators can be used to signal a lateral movement that does not involve a lane change.