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:
Central door locking system
From the outside
With the doors closed, fit and turn the key in one of the front door locks.
From the inside
With the doors closed, press (to lock) or lift (to unlock) one of the side door
knobs ...
Low battery charge
Turning the key to MAR the warning light on the dial turns on, but it should
go out as soon as the engine is started (with the engine running at idle speed a
brief delay in going out is allowed) ...
Engine
...