PEUGEOT 3008 2015 Handbook page 238

Driving
If the lateral distance between your
vehicle and the space is too great, the
system may not be able to measure the
space.
Any object projecting beyond the envelope
of the vehicle (e.g. a ladder on the roof
or a towball) won't be taken into account
by the Park Assist system during a
manoeuvre.
In bad weather or in winter, ensure that
the sensors are not covered by road dirt,
ice or snow.
In the event of a fault, have the system
checked by a PEUGEOT dealer or a
qualified workshop.
High pressure jet washing
When washing your vehicle, keep the lance at
least 12 inches (30 cm) away from the sensors.
236