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:
Bluetooth® functions in the center console control panel
1 Character keys containing letters and
numbers for dialing numbers, adding
phone book entries, etc.
2 TEL: Press this button to activate/deactivate
the Bluetooth® function.
3 TUNE: Turn to ...
Overview
The Volvo XC90 revolutionised the premium SUV market when it was launched in
2003. With its modern design, powerful engines, Roll-Over Protection System (ROPS)
and seven-seat capability with up to ...
About this manual
• Before you operate your vehicle for the first
time, please familiarize yourself with the
information found in the chapters "Instruments
and controls" and "Starting and
driving.&qu ...
