Circuit/System Description
WARNING: This page is about a different car, the 2015 GMC Acadia, 2015 Chevrolet Traverse, and 2015 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
The vehicle navigation radio provides verbal directions to the driver through the radio speakers, The navigation radio receives an audio voice signal from the communication interface module (CIM).