Circuit/System Verification

WARNING: This page is about a different car, the 2018 Chevrolet Bolt EV. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The green OnStar LED stays off when there is no OnStar subscription for the vehicle or when a remote diagnosis is being run. In these cases the LED can also not be turned on by using the control function.

Ignition - On/Vehicle - In Service Mode
Verify no other DTCs are set.
- If any DTC is set
  Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If no DTC is set
Verify the component turns On and Off: With Scan Tool - Green Indicator Command - On and Off
- If the component does not turn On and Off
  Refer to Circuit/System Testing. - Green Indicator - Test
- Go to next step: If the component turns On and Off
Verify the component turns On and Off: With Scan Tool - Red Indicator Command - On and Off
- If the component does not turn On and Off
  Refer to Circuit/System Testing. - Red Indicator - Test
- Go to next step: If the component turns On and Off
All OK.