Volvo XC90 Owner's Manual page 136

System status
BLIS not functioning
Right-hand camera
blocked
Left-hand camera
blocked
Both cameras blocked
BLIS system off
BLIS system on
WARNING!
The BLIS cameras have the same limitations as the human eye, i.e.
they "see" worse in heavy snowfall or thick fog for example.
The messages above are only shown if the
ignition key is in position II and BLIS is active
(i.e. if the driver has not switched off the
system).
Text in the display
BLIND-SPOT SYST SERVICE
REQUIRED
BLIND-SPOT SYST R CAMERA
BLOCKED
BLIND-SPOT SYST L CAMERA
BLOCKED
BLIND-SPOT SYST CAMERAS
BLOCKED
BLIND-SPOT INFO SYSTEM OFF
BLIND-SPOT INFO SYSTEM ON
Starting and driving
NPR