See also:

Safety
Volvo is a renowned world leader in automotive safety, and the all-new Volvo S80 features a new generation of preventive and protective safety systems. The best way to protect the car occupants is ...

Low battery voltage
If the battery voltage is too low, the parking brake cannot be applied or released. Connect an auxiliary battery if the battery voltage is too low, see page 114. ...

Auto-brake
If a collision is imminent and the driver has not applied the brakes or begun to steer around the vehicle or pedestrian, the auto-brake function is activated without the driver pressing the brake ...