Ferrari F430 Spider Owner's Manual page 92

If the obstacle is located in a lateral
position, it will be detected at distances of
less than 2.6 ft. (0.8 m).
92
Failure signals
The system ECU tests all the components
each time the ignition key is turned to
position II.
The sensors and the respective electrical
connections are then constantly checked
throughout system operation.
In the event of failure of the parking sensor
system, the driver is warned with a beep.
In this case, stop the vehicle and turn the
ignition key to position 0 (Stop). Then try
cleaning the sensors or moving the vehicle
away from any possible ultrasound sources
(e.g., pneumatic truck brakes or pneumatic
hammers) and turn the ignition key back
to position II. In this way, if the cause of
the operating fault has been corrected,
the system resumes full operation and the
warning beep goes off.
Should this not occur, contact your
Authorized Ferrari Dealer to have the
system checked even if it is still working. In
fact, if the failure detected by the ECU does
not affect operation, the system continues
working and the malfunction is stored so
that it can be checked by your Authorized
Ferrari Dealer during a subsequent
inspection.
During parking maneuvers, always be
extremely careful with obstacles that might
be located above or below the sensors. In
particular, low-lying (e.g., curbs, stone posts),
broken (e.g., wire mesh fences, hedges), thin
(e.g., poles, lampposts) or suspended obstacles
(e.g., bars/overhead doors) may in certain
conditions not be detected by the system and
hence damage the vehicle or the obstacles.
The signals transmitted by the sensors can
also be altered by damage to the sensors or
by dirt, snow or ice on the sensors or even
by ultrasound systems (e.g., pneumatic
truck brakes or pneumatic hammers) in the
vicinity.
The driver is in any case always
responsible for parking and other
potentially dangerous maneuvers. During
these maneuvers, always make sure there
are no people (especially children) or
animals in the maneuvering area. The
parking sensors must be considered as an
aid to the driver who, in any case, must
never take less care during potentially
dangerous maneuvers, even if they are
performed at low speeds.