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:
Interior
According to Volvo, the upholstery in the V50's five-passenger interior was
inspired by sportswear. The instrument panel's texture is meant to signal
technical innovation to the occupant. An Intel ...
Function
A vehicle towing a trailer may begin to sway for
various reasons. Normally this only occurs at
high speeds but, for example, if the trailer is
overloaded or if the load is unevenly distributed
...