The hand and arm bent at 90 degrees and pointing downward indicate the driver’s intention to

Explanation

You must use hand and arm signals if your vehicle's turn signals have failed. To indicate a right turn, the hand and arm are bent at 90 degrees and pointing upward. To indicate a left turn, the hand and arm are extended leftward. To slow down or stop, the hand and arm are bent at 90 degrees and pointing downward.