Power brakes function only when the engine is running

The power brakes utilize vacuum pressure which is only created when the engine is running.
Never let the vehicle roll to a stop with the engine switched off.
If the power brakes are not working, considerably higher pressure will be required on the brake pedal to compensate for the lack of power assistance. This can happen for example when towing your vehicle or if the engine is switched off when the vehicle is rolling. The brake pedal feels harder than usual.
See also:
Clearing the phone book
In phone mode, all entries in the infotainment system's phone book can be cleared
in Phone menu Phone book Clear phone book.
NOTE
Clearing the entries in the infotainment system's pho ...
Front airbags
Front airbags ...
R-design
The R-DESIGN is a sporty version of the Volvo C30 and most closely resembles
the Volvo C30 Design Concept. Exterior design includes an R-DESIGN badge in the
front grille, colour coordinated bodykit, ...
