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:
Quality and equipment
In the Volvo XC90 considerable importance has been attached to providing a
comprehensive standard specification to reflect the upmarket ambience of the car
itself.
Luxurious touches such as the ...
Whiplash Protection System – WHIPS
The WHIPS system consists of specially designed hinges and brackets on the front
seat backrests designed to help absorb some of the energy generated in a collision
from the rear (when the vehicl ...
Confirmation when locking/unlocking the vehicle
Settings can be made in the menu system for audible and visual confirmation when
the vehicle has been locked or unlocked. With these functions activated, the following
will occur when the vehicle ...