All signals required to be given by hand and arm shall be given from the left side of the vehicle in the following manner, and the signals shall indicate the following:
(1)  Left turn. – Hand and arm extended horizontally.

Terms Used In Idaho Code 49-810

  • person: includes a corporation as well as a natural person;
Idaho Code 73-114
(2)  Right turn. – Hand and arm extended upward. A person operating a bicycle may give a right turn signal by extending the right hand and arm horizontally and to the right side of the bicycle.
(3)  Stop or decrease speed. Hand and arm extended downward.