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:
Collision Warning
The radar sensor and the camera work together to detect a pedestrian, stationary
vehicles and vehicles that are moving in the same direction as your vehicle. If
there is a risk of collision with a ...
Reporting safety defects in Canada
If you believe your vehicle has a defect that
could cause a crash or could cause injury or
death, you should immediately inform Transport
Canada in addition to notifying Volvo Cars
of Canada Corp. ...
Recalibrating TPMS (Canadian models only)
In certain cases, it may be necessary to recalibrate TPMS to conform to Volvo's
recommended tire inflation pressures (see the inflation pressure table on page 275),
for example, if higher infl ...
