Circuit/System Verification
WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, cellular, entertainment and navigation (radio) ON.
- Press and/or scroll each of the buttons on the radio control switch.
- The cellular, entertainment and navigation (radio) should respond to desired function of the radio switch.
- Ignition ON, observe the DTC information with a scan tool. Verify no DTCs are set.
- If a DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .