Under normal driving conditions, when should service brakes primarily be used?

Using service brakes primarily for controlling speed and stopping is fundamental to safe driving under normal conditions. Service brakes are designed to provide the necessary stopping power and allow the driver to manage their speed effectively. This includes slowing down when necessary, coming to a complete stop at intersections, and managing speed while approaching traffic signals or pedestrians.

When driving normally, it is crucial to rely on the service brakes to maintain control over the vehicle's motion. They are engineered to engage smoothly and provide the necessary deceleration without losing traction or stability. The consistent use of service brakes for these purposes helps prevent accidents and ensures a safe driving experience.

While the other options can involve the use of brakes, they do not represent the primary function of service brakes in typical driving situations. For instance, parking (often involves using the parking brake), driving down a steep hill may require engine braking techniques to control speed more efficiently, and off-road conditions might necessitate a different braking approach altogether.