OnStar Description and Operation (UE1 with IOB/IO6)
This OnStar system consists of the following components:
Telematics communication interface control module
OnStar three button assembly
Micr
DTC B0997
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
appro
Brake Rotor Thickness Measurement
Special Tools
CH-230 - A Disc Gauge
Equivalent regional tools: Special Tools
WARNING: Refer to Brake Dust Warning.
1. If the inboard friction surface of the brake rotor is not accessible,
reposition and support the caliper
with the brake pads. Refer to Front Disc B