DAC is designed to help detect a slowly changing driving pattern. It is primarily intended to be used on main roads and is not meant for use in city traffic.
The function activates initially when the vehicle's speed first exceeds 40 mph (65 km/h) and remains active as long the speed remains above approx. 37 mph (60 km/h)
A camera monitors the traffic lane's side marker lines and compares the direction of the road with the driver’s movements of the steering wheel.
If the driving pattern becomes noticeably erratic, the driver will be alerted by an audible signal and Driver Alert Time for a break will appear in the instrument panel along with a symbol.
The warning will be repeated if the driving pattern does not change.
Warning
- DAC is not intended to extend the duration of driving. Always plan breaks at regular intervals to help remain alert.
- A warning from DAC should not be ignored. A driver may not be aware of how fatigued he/she has become.
- In certain cases, fatigue may not affect the driver’s behavior. In situations of this type, no warning will be provided. Therefore, it is important to take breaks at regular intervals, regardless of whether or not DAC has given a warning.