Parking lig
The front and rear parking lights can be turned on even when the ignition is switched off.
Turn switch (1) to position 
The license plate lights also illuminate when the
parking lights are switched on.
See also:
Use of Additives
With the exception of gas line antifreeze during
winter months, do not add solvents, thickeners,
or other store-bought additives to your
vehicle's fuel, cooling, or lubricating systems.
Overuse ...
Decals
There are various types of decals in the vehicle whose purpose is to provide
important information in a clear and concise way. The importance of these decals
is explained as follows, in descending ...
Climate control maintenance
Special tools and equipment are required to
maintain and carry out repairs on the climate
system. Work of this type should only be done
by a trained and qualified Volvo service technician. ...