Circuit/System Verification
WARNING: This page is about a different car, the 2008 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
- Observe the scan tool GPS Signal Status Indicator parameter for at least 10 seconds. Verify the indicator displays Yes.
- If the indicator does not display Yes, refer to Circuit / System Testing .
- Call and verify the OnStar advisor receive GPS data.
- If the advisor did not receive GPS data and the call was a 'fail to voice', contact the GM Technical Assistance Center.
- If the advisor did not receive GPS data and the call was not a 'fail to voice', refer to Circuit / System Testing .
- Verify with the OnStar Call Center advisor that your actual position is within a reasonable distance from the actual location of the vehicle.
- If your actual position is not within a reasonable distance from the actual location of the vehicle, replace the VCIM.