Which system alerts other drivers that a vehicle is braking?

The brake stop lamp system is responsible for alerting other drivers that a vehicle is braking. When the driver presses the brake pedal, the stop lamps or brake lights at the rear of the vehicle are activated. This provides a visual cue to following drivers, indicating that the vehicle is slowing down or coming to a stop. This system is critical for road safety as it helps to prevent collisions by allowing other drivers to react appropriately.

While the hydraulic system refers to the mechanism that transfers the force from the brake pedal to the brake pads through brake fluid, it does not send alerts to other drivers. The antilock brake system is designed to prevent wheel lock-up during hard braking, enhancing vehicle control but not providing indication to others. The boost system aids in increasing the force applied to the brakes, improving braking efficiency but does not serve as a warning signal.