METHOD OF VEHICLE U-TURN SIGNAL INITIATION Russian patent published in 2008 - IPC B60Q1/38 

FIELD: mechanics.

SUBSTANCE: u-turn switch, additional electrical wires and diodes, limiting current to other devices not participating in u-turn signaling, are used to perform a vehicle u-turn signal initiation. U-turn signal initiation lights switch on left turn signal lights, a left headlight of antidazzle light and a left light of a back up alarm. The said lights are connected by means of a relay, thus providing a simultaneous switching of lights in a flashing mode, they are also connected by additional electric wires with a u-turn switch, located at a steering wheel column.

EFFECT: increase of traffic safety.