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
NOTE: Review the system operation in order to familiarize yourself with
the system
functions.
Refer to Steering Wheel and Column Description and Operation.
Symptoms List
Refer to a symptom diagnostic procedure from the following list in order to
diagnose the symptom:
High Effort While Tilting Co
Special Tools
EL-35616 Terminal Test Probe Kit
For equivalent regional tools, refer to Special Tools.
When the condition is not currently present, but is indicated in DTC history,
the cause may be intermittent.
An intermittent may also be the cause when there is a customer complaint, but
the symp