5D

OnStar Control Module (673):

Location:
5D: under luggage compartment floor in front of subwoofer. K12

OnStar Control Module (673):

Location:
5D: under luggage compartment floor in front of subwoofer. K16A

OnStar Control Module (673):

Location:
5D: under luggage compartment floor in front of subwoofer. K16B