Power brakes function only when the engine is running

Power brakes function only when the engine is running  - Brake system - Brakes - Your driving environment - Volvo S60 Owners Manual - Volvo S60

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:

    High/low beam headlights
    Headlight switch and lever 1 High beam flash 2 Toggle between high and low beams ...

    Three-way catalytic converter
    Three-way catalytic converter - general information • Keep your engine properly tuned. Certain engine malfunctions, particularly involving the electrical, fuel or distributor ignition systems, ma ...

    Infotainment system volume
    If no phone call is in progress, volume for the infotainment system can be adjusted in the normal way with the infotainment system's VOL control or from the steering wheel keypad. Infotainment ...