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:
Steering column lock
Engaging
When the key is to STOP or PARK remove the key and turn the steering wheel until
it locks.
Disengaging
Rock the steering wheel slightly as you turn the ignition key to MAR.
WARNING
N ...
Left-hand and right-hand direction indicator
(green - intermittent) (Natural Power versions)
The warning light turns on when the direction indicator control lever is moved
downwards or, together with the right indicator, when the hazard war ...
Child lock
To prevent opening the sliding side doors from the inside.
Engage by inserting the tip of the ignition key as shown in fig. 113 and turning
it.
Position 1 - device off.
Position 2 - device on.
T ...