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.