What does a driver signal by extending the left arm downward?
Correct answer: C – Slowing down or stopping
In Indiana, a downward-pointing left arm is the hand signal for decreasing speed. The driver may be slowing or preparing to stop. A horizontally extended arm signals a left turn, while an upward-bent arm signals a right turn.
Source: IC 9-21-8-28 – Hand and Arm Signals; Left Turn; Right Turn; Decrease in Speed, Indiana Driver’s Manual — Ch. 7, “Signaling Intention to Turn”




