Turn the knurled ring to 
.
The warning light 
on the instrument
cluster will come on.
See also:
Operation with trailer
The system is preset for deactivating automatically when the trailer electric
cable plug is fitted into the car tow hook socket.
Sensors are reactivated when removing the trailer cable plug.
For p ...
Important notes
The vehicle must be fitted with a homologated tow hitch and suitable electrical
system for towing a caravan or trailer. Installation must be carried out by skilled
personnel who will issue documen ...
Fuel filler cap
To open the cap, turn it anticlockwise and then remove it.
During refuelling, secure the cap to the anti-loss device on the flap as shown
in the figure.
On certain versions the cap has a keylock ...