PRE-RELEASE
Symptoms - Cellular Communication
| Symptoms - Cellular Communication |
| Note | ||
|
The following steps must be completed before using the symptom table. |
| 1. |
Perform the
Diagnostic System Check - Vehicle
before using the Symptom Tables in order to verify that all of the following are true:
|
|
| • |
There are no DTCs set.
|
| • |
The control modules can communicate via the serial data link.
|
| 2. |
Review the system operation in order to familiarize yourself with the system functions. See
OnStar Description and Operation
.
|
|
| Visual/Physical Inspection |
| • |
Inspect for aftermarket devices which could affect the operation of the Radio/Audio System. See
Checking Aftermarket Accessories
|
|
| • |
Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
|
|
| Intermittent |
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .
| Symptom List |
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
| • |
Bluetooth Malfunction
|
|
| • |
OnStar Global Positioning System (GPS) Data Not Current or Inaccurate
|
|
| • |
OnStar Microphone Malfunction
|
|
| • |
OnStar Audio Malfunction
|
|
| • |
OnStar Button LED Malfunction
|
|
| • |
OnStar Call Center Remote Function Requests Malfunction
|
|
| • |
OnStar Button Malfunction
|
|
| • |
Unable to Contact OnStar Call Center
|
|
| • |
OnStar Voice Recognition Malfunction
|
|
| • |
OnStar Steering Wheel Control Functions Malfunction
|
|
