Instrument panel lighting
The instrument panel lighting illuminates when
the ignition key is in position II and the light
switch (1) is in either position 
Move the thumb wheel (4) up to increase brightness or down to decrease brightness.
See also:
Instrument overview
Instrument overview
1 Menus and messages, turn signals, high/low beams, trip
computer
2 Cruise control
3 Horn, airbag
4 Main instrument
panel
5 Audio system/Bluetooth
hands-free
cont ...
Contacting Volvo
In the USA:
Volvo Cars of North America, LLC
Customer Care Center
1 Volvo Drive,
P.O. Box 914
Rockleigh, New Jersey 07647
1-800-458-1552
www.volvocars.us
In Canada:
Volvo Cars of Canada Corp
...
ABS (Anti-lock brake system)
If the warning light comes on,
there
is a malfunction of the ABS system
(the standard braking system will
still function). The vehicle should
be driven to a trained and qualified
Volvo service ...