Faults in the system

If the information symbol illuminates and Park assist syst Service required is shown on the information display, this indicates that the system is not functioning properly and has been disengaged. Consult a trained and qualified Volvo service technician.
CAUTION
In certain circumstances, the park assist system may give unexpected warning signals that can be caused by external sound sources that use the same ultrasound frequencies as the system. This may include such things as the horns of other vehicles, wet tires on asphalt, pneumatic brakes, motorcycle exhaust pipes, etc. This does not indicate a fault in the system.
See also:
Reduced alarm function
Turning off the accessory alarm sensors
In certain situations it may be desirable to turn
off the accessory inclination and movement
alarm sensors if, for example, you drive your
vehicle onto a ...
Optimal sound reproduction
The audio system is pre-calibrated for optimal
sound reproduction using digital signal processing.
This calibration takes into account factors such
as the speakers, amplifier, cabin acoustics, th ...
Accessory installation
• We strongly recommend that Volvo owners
install only genuine, Volvo-approved
accessories, and that accessory installations
be performed only by a trained and
qualified Volvo service technician.
...
