What does cruise control do?

Cruise control is a system that allows a vehicle to maintain a constant speed without the driver needing to keep their foot on the accelerator pedal. By doing so, it helps reduce driver fatigue during long trips and can enhance comfort by allowing for a steady driving pace. The system is typically controlled by the driver engaging it at a desired speed. Once activated, cruise control takes over the throttle control to maintain that speed, enabling the driver to relax their foot and focus on steering and observing traffic conditions.

While cruise control can contribute to improved fuel efficiency (as it can maintain a consistent speed, potentially avoiding unnecessary acceleration and deceleration), its primary function is about maintaining speed rather than directly influencing fuel consumption. Automatic lane changes and collision prevention are features associated with advanced driver-assistance systems, which are separate from standard cruise control functionalities.