PEUGEOT RCZ Handbook page 145

Visual assistance
This supplements the audible signal by displaying bars in the
multifunction screen which move progressively nearer to the vehicle.
When the obstacle is near, the "Danger" symbol is displayed in the
screen.
FRONT PARKING SENSORS
In addition to the rear parking sensors, the front parking sensors are
triggered when an obstacle is detected in front and the speed of the
vehicle is still below 6 mph (10 km/h).
The front parking sensors are interrupted if the vehicle stops for more
than three seconds in forward gear, if no further obstacles are detected
or when the speed of the vehicle exceeds 6 mph (10 km/h).
The sound emitted by the speaker (front or rear) indicates whether the
obstacle is in front or behind.
Deactivation / Activation of the front and rear parking sensors
The function is deactivated by pressing this button. The indicator lamp
in the button comes on.
Pressing this button again reactivates the function. The indicator lamp in
the button goes off.