Press 
to turn this function on.
Activation is indicated by the turning on of the warning light
on the instrument panel.
This function is timed and switches off automatically after 30 minutes. To cut
out this function press again button .
IMPORTANT Do not apply stickers on the inside of the rear window over the heating filaments to avoid damage that might cause it to stop working properly.
See also:
Steering Wheel Audio Controls
The remote sound system controls are located on the rear surface of the steering
wheel. Reach behind the wheel to access the switches.
Remote Sound System
Controls (Back View Of Steering Wheel)
...
Start&Stop system and Gear Shift Indicator
With respect for the environment and fuel economy still in mind, the new
model implements a system called Start&Stop. Standard on all engines, this
device temporarily stops the engine and rest ...
If an exterior light burns out
For the type of bulb and power rating, see “When needing to change a bulb”. ...