Diagnostic Aids
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the serial data circuits and connections at the electronic brake control module and the inflatable restraint sensing diagnostic module. They should be free from sources of electromagnetic interference and the connections should be clean and tight.