Circuit/System Verification
WARNING: This page is about a different car, the 2013 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The following verification requires the vehicle to be outside with an unobstructed view of the southern sky. Allow 5 minutes after turning key on for the GPS satellites to acquire vehicle signal.
- Ignition ON, verify DTC B2455 is not set.
- If any DTC B2455 is set, refer to DTC B2455 .
- Ignition ON, verify the OnStar® voice recognition is operating normally.
- If the OnStar® voice recognition is inoperative, refer to Circuit/System Testing - Microphone Malfunction .
- Radio ON, contact the OnStar® call center consultant by pressing the blue OnStar® button. Verify the OnStar® call center consultant can hear you clearly.
- If the OnStar® call center consultant can not hear you clearly, refer to Circuit/System Testing - Cellular Telephone Voice Malfunction .