Each time the button is pressed, the headway changes as follows:

For example, if you drive at 56 mph (90 km/h), the distance is maintained as follows:

• Distance 4: approximately 172 ft (52.5 m)

• Distance 3: approximately 130 ft (40 m)

• Distance 2: approximately 106 ft (32.5 m)

• Distance 1: approximately 82 ft (25 m)