Volvo XC90: Driver support / Radar sensor
The radar sensor is used by several driver support systems to detect other
vehicles.

Location of radar sensor
The radar sensor is used by the following functions:
- Distance Alert*
- Adaptive Cruise Control*
- Pilot Assist*
- Lane Keeping Aid
- City Safety
- Steering assistance at risk of collision
Any modifications to the radar sensor may make its use illegal.
* Option/accessory.
(Option/accessory.
Messages for Park Assist Pilot (PAP1) may be displayed in the instrument
panel and/or the center display. Several examples are provided below...
The type approval for the vehicle's radar units for adaptive cruise control*
(ACC1), Pilot Assist* and BLIS*2 are found here.
This device complies with Part 15 of the FCC Rules and with Industry Canada licenseexempt
RSS standard(s)...
Other information:
The vehicle's ignition can be put in various modes (levels) to make different
functions available.
To enable the use of a limited number of functions when the engine is not running,
the ignition can be put in one of three different levels: 0, I and
II...
HD Radio is deactivated when the car leaves the factory.
When listening to an HD Radio station and driving through areas with weak HD
signals (fringe areas), you may experience that the radio repeatedly switches between
analog/digital and digital/analog reception...