PEUGEOT RCZ Handbook page 150

Deactivation / Activation of the rear parking sensors
The function is deactivated or activated via the vehicle confi guration
menu.
The status of the function is stored when the ignition is switched off.
The function will be deactivated automatically if a trailer is being
towed or a bicycle carrier is fi tted (vehicle fi tted with a towbar or
bicycle carrier recommended by PEUGEOT).
OPERATING FAULT
In the event of a malfunction of the system, when reverse gear
is engaged this warning lamp is displayed in the instrument
panel and/or a message appears in the screen, accompanied
by an audible signal (short beep).
Contact a PEUGEOT dealer or a qualifi ed workshop.
In bad weather or in winter, ensure that the sensors are not
covered with mud, ice or snow. When reverse gear is engaged, an
audible signal (long beep) indicates that the sensors may be dirty.
Certain sound sources (motorcycle, lorry, pneumatic drill, etc.)
may trigger the audible signals of the parking sensor system.