When the knurled ring is at 
push
the lever towards the dashboard (stable position).
The warning light 
on the instrument
cluster will come on.
Pulling the lever towards the steering wheel again, the main beams are turned off and the dipped beams on.
See also:
LATCH — Child Seat Anchorage System (LowerAnchors and Tether for CHildren)
Your vehicle is equipped with the child restraint anchorage system called LATCH,
which stands for Lower Anchors and Tether for CHildren. The LATCH system provides
for the installation of the child ...
Engine
...
Anti-Lock Brake System (ABS)
This system aids the driver in maintaining vehicle control under adverse braking
conditions. The system controls hydraulic brake pressure to prevent wheel lockup
and help avoid skidding on slipper ...