Optimal sound reproduction

The audio system is pre-calibrated for optimal sound reproduction using digital signal processing.
This calibration takes into account factors such as the speakers, amplifier, cabin acoustics, the listeners' seating positions, etc., for each combination of vehicle/infotainment system.
There is also a dynamic calibration that takes into consideration the volume level, radio reception, and the speed of the vehicle.
The settings that are described in this manual, (Bass, Treble, Equalizer etc.) are only intended to enable the user to adapt sound reproduction to his/her personal tastes.
See also:
Safety
The S40 has earned good crash-test scores from the Insurance Institute for
Highway Safety. Specifically, it scores Good (the best possible) in frontal and
rear impacts and Acceptable (one ranking ...
Handling
• Check that the battery cables are correctly
connected and tightened.
• Never disconnect the battery when the
engine is running (for example, when
replacing the battery).
• If the battery is ...
Locking the vehicle
Models with keyless drive have a pressure-sensitive area on the outside door
handles and a rubber- covered button next to the trunk opening control
The doors and the trunk can be locked by pressi ...
