Driver Alert Control

Limitations of Driver Alert Control

Updated 7/23/2018

The Driver Alert Control (DAC) function may have limitations in certain situations.

In some cases the system may issue a warning despite driving ability not deteriorating, for example:

  • in strong side winds
  • on rutted road surfaces.


In some cases, driving behaviour is not affected despite driver fatigue – e.g. when using the Pilot Assist function – resulting in the driver not getting a warning from DAC.

It is therefore important to always stop and take a break at the slightest feeling of fatigue, whether the DAC function ha given a warning or not.


The function uses the car's camera unit, which has some general limitations, see the "Limitations for camera unit" section.

Did this help?