This OnStar system consists of the following components:
Telematics communication interface control module
OnStar three button assembly
Microphone
Cellular antenna
Navigation antenna
Blueto
The Emergency Road Assistance Global Navigation Satellite System (ERA GLONASS)
consists of the
following components:
Telematics communication interface control module
Telematics two button assembl
This OnStar system consists of the following components:
Telematics communication interface control module
OnStar three button assembly
Microphones
Cellular antenna
Navigation antenna
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Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provide an overview of each diagnostic
category.
DTC Descriptor
DTC
Special Tools
GE-26568 Coolant and Battery Fluid Tester
GE-42401 Radiator Cap and Surge Tank Test Adapter
GE-47716 Vac N Fill Coolant Refill Tool
Draining Procedure
WARNING: With a pressurized cooling system, the coolant temperature in
the radiator
can be considerably higher than the boiling p