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:
Keypads
Keypads in the steering wheel
1 Cruise control, see page 152. Adaptive
cruise control*, see page 154.
2 Infotainment controls, see page 207. ...
Snow chains, snow tires, studded tires
Snow chains
Snow chains can be used on your Volvo with the following restrictions:
Snow chains should be installed on front wheels only. Use only Volvo approved
snow chains.
If accessory, af ...
Using voice commands
The driver initiates a voice command dialogue
by pressing the voice control button (see the
illustration on page 241).
When a dialogue has been initiated, commonly
used commands will be shown i ...
