Adaptive cruise control (ACC) is a driver-assistance technology that automatically adjusts a vehicle's speed to maintain a safe following distance from the car in front. For example, if the car ahead slows down, the ACC system will automatically reduce the speed of the Toyota RAV4 you are driving, ensuring a safe distance is maintained at all times.
ACC is a valuable safety feature that can help to reduce the risk of rear-end collisions. It is also a convenient feature that can help to reduce driver fatigue on long journeys. The first ACC system was developed in the early 1990s by Mitsubishi Motors, and the technology has since been adopted by many other car manufacturers.