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:
Introduction
Center console control panel
1 Volvo Navigation System (VNS)* – NAV:
see the separate VNS manual for operating
instructions.
2 Infotainment (RADIO, MEDIA, TEL*): see
the infotainment system o ...
Emergency stop
If the seat accidentally begins to move, press one of the buttons to stop the
seat.
WARNING
Because the driver's seat can be adjusted with the ignition off, children
should never be ...
Environment
Volvo is passionately committed to protecting our environment. Along with
safety, environmental protection is a cornerstone of the Volvo brand,
commensurate with the company's philosophy to protect ...
