Circuit/System Verification
WARNING: This page is about a different car, the 2016 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Verify that DTC B2455 is not set.
- If DTC B2455 is set
Refer to DTC B2455 .
- If DTC B2455 is not set
- If DTC B2455 is set
- Verify that a successful OnStar® voice command can be made.
- If your voice can not be heard clearly.
Refer to Circuit/System Testing - Microphone Malfunction.
- If your voice can be heard clearly
- If your voice can not be heard clearly.
- All OK.