Power brakes function only when theengine 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:
Security
Volvo's passion for safety also extends to issues of personal security. The
Volvo XC90 is fitted as standard with a wide range of features designed to
protect occupants from burglary, theft and as ...
Unleaded fuel
Each Volvo has a three-way catalytic converter and must use only unleaded gasoline.
U.S. and Canadian regulations require that pumps delivering unleaded gasoline be
labeled "UNLEADED". O ...
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 ...
