Sec. 17-153. Method of giving hand-and-arm signals.
   All signals herein required by this article given by hand-and-arm shall be given from the left side of the vehicle in the following manner and such signals shall indicate as follows:
   (1)   Left turn. Hand and arm extended horizontally.
   (2)   Right turn. Hand and arm extended upward.
   (3)   Stop or decreased speed Hand and arm extended downward.
(Code 1982, § 23-1203)
   State law reference—Similar provisions, SDCL § 32-26-24.