Forward Collision Warning

It uses radar or camera. It often precedes automatic braking. Sensitivity is often adjustable. Typical warnings include a red symbol in the instrument cluster or head-up display, an urgent sound and sometimes a short brake jolt. Many systems also prepare the brakes for a faster response. Warnings can be triggered by parked cars in bends or vehicles turning off ahead, which is normal behaviour.

The system calculates time to collision.

React immediately to warnings. Sensor blockage disables it.