(A)   No person shall turn any vehicle without giving an appropriate signal in the manner herein provided in the event any other traffic may be affected by such movement.  A signal of intention to turn right or left when required shall be given continuously during not less than the last 100 feet traveled by the vehicle before turning.
   (B)   No person shall stop or suddenly decrease the speed of a vehicle without first giving an appropriate signal in the manner provided herein to the driver of any vehicle immediately to the rear when there is opportunity to give such signal.
('81 Code, § 71.26)  Penalty, see § 70.99
Statutory reference:
   Signals required for turning or stopping, see S.C. Code § 56-5-2160