Limitations

In certain situations, the BLIS indicator light(s) may illuminate even when there are no other vehicles in the area monitored by the system.
NOTE
If the BLIS indicator lights illuminate occasionally
even when there are no other vehicles
in the blind area, this does not indicate
a fault in the system.
In the event of a fault, Blind spot syst.
service required will be displayed.
The following are several examples of situations in which the BLIS indicator light(s) may illuminate even when there are no other vehicles in the area monitored by the system.

Light reflected from a wet road surface

The vehicle's own shadow against a large, light, smooth surface such as barriers between lanes on a highway

Sunlight directly in the camera when the sun is low on the horizon
See also:
Cold weather precautions
If you wish to check your vehicle before the approach of cold weather, the following
advice is worth noting:
Make sure that the engine coolant contains 50 percent antifreeze. Any other
mixtur ...
Vehicle loading
Properly loading your vehicle will provide maximum
return of vehicle design performance.
Before loading your vehicle, familiarize yourself
with the following terms for determining your
vehicle's ...
Children should be seated safely
Volvo recommends the proper use of restraint
systems for all occupants including children.
Remember that, regardless of age and size, a
child should always be properly restrained in a
vehicle.
...
