Reference Information
WARNING: This page is about a different car, the 2019 Chevrolet Traverse. However, it is still accessible from the selected car via links, so may be relevant.
Schematic Reference
OnStar/Telematics Wiring Schematics
Connector End View Reference
Master Electrical Component List , or Component Connector End Views - Index
Description and Operation
OnStar Description and Operation (without UI3) , or OnStar Description and Operation (UI3)
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information
Special Tools
EL-49903 GM OnStar Antenna Diagnostic Tool Kit