SDCL § 58-11-9.8: Adding of uninsured motorist coverage limits for multiple vehicles prohibited.

Regardless of the number of policies involved, vehicles involved, persons covered, claims made, vehicles or premiums shown on the insured's policy, or premiums paid, in no event may the limit of liability for uninsured motorist coverage for two or more of the insured's motor vehicles be added together to determine the limit of insurance coverage available to an injured person for any one accident.