"No OnStar" shown on the display
Read the instructions below then start the fault diagnostic procedure.
Symptom: "No OnStar" shown on the display
OnStar telephone out of order |
Fault symptom
"No OnStar" shown on the displayConditions
The car is within an area of coverage for the service.The car's OnStar system is registered with OnStar.
No DTCs stored with the fault symptom in question.
The diagnostic tool is communicating with the control module.