Reference Information

WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. 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

Component Connector End View Index

Description and Operation

OnStar Description and Operation (UE1 with IOB/IO6) , OnStar Description and Operation (UI3) , or OnStar Description and Operation (UE1 without IOB/IO6)

Electrical Information Reference

Refer to Circuit Testing
Refer to Connector Repairs
Refer to Testing for Intermittent Conditions and Poor Connections
Refer to Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information