Power brakes function only when theengine is running

Volvo XC90 / Volvo XC90 Owners Manual / Starting and driving / Brake system / Power brakes function only when theengine is running

Power brakes function only when theengine is running - Brake system - Starting and driving - Volvo XC90 Owners Manual - Volvo XC90

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:

    Accessing and using menus
    In menu mode, you can change settings and program new functions in the audio system. The various menu alternatives are shown in the display, and the current level in the menu structure is show ...

    Using the system's menus
    Selections in the RSE menus are made using the remote control. See page 251 for more information about the RSE menus. ...

    Lighting panel
    Overview, light switches 1 - Thumb wheel for adjusting display and instrument lighting 2 - Rear fog light 3 - Headlights/parking lights Instrument lighting Illumination of the display and instr ...