Symptoms - Entertainment

Symptoms - Entertainment

Important: The following steps must be completed before using the symptom table.


1. Perform the Diagnostic System Check - Vehicle 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. Refer to Radio/Audio System Description and Operation (with Monochrome Display) Radio/Audio System Description and Operation (with Monochrome Display)Radio/Audio System Description and Operation (with Color Display) Radio/Audio System Description and Operation (with Color Display).

Visual/Physical Inspection

* Inspect for aftermarket devices which could affect the operation of the Radio/Audio System. Refer to Checking Aftermarket Accessories Checking Aftermarket Accessories.

* Inspect for 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 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:

* Application Malfunction Application Malfunction

* Auxiliary Audio Input Malfunction (without SD Card Reader) Auxiliary Audio Input Malfunction (without SD Card Reader)Auxiliary Audio Input Malfunction (with SD Card Reader) Auxiliary Audio Input Malfunction (with SD Card Reader)

* Bluetooth Malfunction (OnStar) Bluetooth Malfunction (OnStar)Bluetooth Malfunction (Radio) Bluetooth Malfunction (Radio)

* Digital Radio Poor or No Reception Digital Radio Poor or No Reception

* Navigation System - Voice Recognition Malfunction Navigation System - Voice Recognition Malfunction

* No Global Positioning System (GPS) Reception No Global Positioning System (GPS) Reception

* Radio Controls Malfunction (with Monochrome Display) Radio Controls Malfunction (with Monochrome Display)Radio Controls Malfunction (with Color Display) Radio Controls Malfunction (with Color Display)

* Radio Information Display Malfunction - DTC U0257 (with Monochrome Display) DTC U0257 (With Monochrome Display)Radio Information Display Malfunction - DTC U0257 (with Color Display) DTC U0257 (with Color Display)

* Radio Poor Reception B125A

* Speaker Malfunction Speaker Malfunction

* Navigation System Malfunction Navigation System Malfunction