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:
Steep inclines and/or heavy loads
ACC is primarily intended for use on fairly level
roads. The system may have difficulty maintaining
the correct distance to a vehicle ahead
on steep inclines, if the vehicle is carrying a
heav ...
Interior design
The interior of the Volvo XC90 endorses the car's premium feel, materials
used and a high standard of detailing impart an air of luxury and craftsmanship.
The driver will appreciate a clear and er ...
Information displays
Information displays in the instrument panel
The information displays show information on some of the vehicle's functions,
such as cruise control, the trip computer and messages. The informat ...