Volvo V70 Owner's Manual page 123

BLIS (Blind Spot Information System)
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.
NOTE! 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).
122
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