SDCL § 32-28-8.2: Procedure when traffic lights malfunctioning.

If a traffic control signal is out of operation or is not functioning properly, the vehicle traffic facing a:

(1) Green signal may proceed with caution as indicated in § 32-28-2;

(2) Yellow signal may proceed with caution as indicated in § 32-28-3; and

(3) Red or completely unlighted signal stop shall stop in the same manner as if the vehicle is at a stop sign.