Information - Toyota PRIUS C 2016 Quick Reference Manual

Lane Departure Alert (LDA)
The Lane Departure Alert system recognizes visible white or yellow lane markers
via a front sensor. The system alerts the driver with a warning buzzer sound
and message in the Multi-Information Display (MID) when it detects the vehicle
deviating from or swaying multiple times within its lane.
Turning on the LDA system
Press the LDA switch to turn the LDA system on. Depress again to turn it off.
Note: The system will continue in the last state it was in (ON or OFF) when the
engine is started again.
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