If a driver extends the left arm horizontally with the palm of the hand facing backward, what maneuver are they signaling?

Question

DentroTest · Accepted Answer

The General Traffic Regulations establish that maneuvers must be warned of with the vehicle's light signals or, failing that or in their absence, with the arm. To warn of the intention to reverse, the reversing light is used or the arm is extended horizontally with the palm facing backward. The other options are incorrect: to turn left, the arm is extended horizontally with the palm facing down, and to warn of braking or stopping, the extended arm is moved up and down with short, quick movements.

If a driver extends the left arm horizontally with the palm of the hand facing backward, what maneuver are they signaling?

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