Turn the knurled ring to 
.
The warning light 
on the instrument
cluster will come on.
See also:
Side bag
They are composed by two types of instant inflation and are housed in the back
rest of the front seats. The task of the side air bags is to increase protection
of the occupants’ chest in the eve ...
General failure indication
The warning light on the dial comes on when a failure is detected. ...
If an exterior light burns out
Alterations or repairs to the electric system not carried out correctly and
without taking into account the system specifications may cause failures and the
risk of fire.
See “If a bulb burns ou ...