You can signal another vehicle with your headlights by lightly pulling the multifunction lever toward the steering wheel. This will turn on the high beams until the lever is released.
See also:
Incomplete door locking
The warning light on the dial turns on (on certain versions together with the
message on the display) when one or more doors, the boot (indication fitted on some
versions only) or the bonnet ...
29. Speedometer
The Speedometer shows the vehicle speed in miles per hour (mph) and/or kilometers
per hour (km/h). ...