Buick Regal: Navigation System Malfunction (and SD Card Errors)

For issues with the Navigation system follow the steps below:

• Verify the radio has the latest software installed
• Verify the SD Card is fully installed and seated into the SD Card slot
• Verify the SD Card installed in the vehicle has the correct region and part number Check for DTC's, if any are present diagnose those first Diagnostic Trouble Code (DTC) List - Vehicle
• Test the X83 Auxiliary Audio Input, and if equipped the X92 USB Receptacle with a compatible USB device for audio playback.

  If no audio is heard refer to Auxiliary Audio Input Malfunction (IO5/IO6), Auxiliary Audio Input Malfunction (IOB), or Auxiliary Audio Input Malfunction (IOR/IOS/IOT) Ensure the SD Card is not removed with the ignition ON, this can corrupt the SD Card and cause navigation related errors.

• Ensure that SD Cards are not swapped from vehicle to vehicle, SD Cards are VIN specific.
• If the read/write switch on the side of the SD card is in the incorrect position any of the following messages may appear on the display- "Once initialized, this SD card can only be used for navigation in this vehicle" or "Navigation Service Expired" and a loss of the current navigation route may be experienced if the ignition is cycled. If the switch is in the read-only (down) position then this may be the reason for the messages. The switch needs to be placed in the write position (up towards the contacts). After placing the switch in the correct position, re-insert the SD card and verify the condition is no longer present. Be sure to emphasize to the customer the SD card should not be removed from the SD card slot.

In the event of an error code being displayed on the Radio Information Display the information below can assist in diagnosing the issue.

The following is an example of how to analyze the error code:

Example error code: 0x1.9845.9876.1123.9876

• 0x1 - Error code (see Navigation Error Codes)
• 9845 - Last 4 digits of originally paired VIN or "0x" if the value is null
• 9876 - Last 4 digits of originally paired SD Card ID or "0x" if value is null
• 1123 - Last 4 digits of currently obtained VIN or "0x" if the value is null
• 9876 - Last 4 digits of currently obtained SD Card ID or "0x" if the value is null

In this example the SD Card is paired to a vehicle with VIN ending in 9845 but it is installed in a vehicle with VIN ending in 1123. Therefore, the SD Card is not valid and cannot be used for the vehicle with VIN ending with 1123.

The table below contains the error messages and error codes displayed on the Radio Information Display and the recommended action.

Navigation Error Codes

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification

• For control module replacement, programming, and setup refer to: Control Module References

OnStar Voice Recognition Malfunction

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.
• Refer to Diagnostic Procedure Instructions for an overview of each diagnostic category.

Circuit/System Description

The telematics communication interface control module is capable of interpreting voice commands received over the cellular microphone circuit. Speech recognition allows the user to speak to one computer in the vehicle, and one reached over the cellular communication network. The module attempts to understand the users command, and responds by speaking back, or by taking the appropriate action, e.g. dialing the phone.

Reference Information

Schematic Reference

OnStar/Telematics Wiring Schematics

Connector End View Reference

Component Connector End View Index

Description and Operation

OnStar Description and Operation (UE1 with IOB/IO6) , OnStar Description and Operation (UI3) , or OnStar Description and Operation (UE1 without IOB/IO6)

Electrical Information Reference

• Refer to Circuit Testing
• Refer to Connector Repairs
• Refer to Testing for Intermittent Conditions and Poor Connections
• Refer to Wiring Repairs

Circuit/System Verification

NOTE:

• It is necessary to have the vehicle in an open outside area where a cellular call can be successfully placed and GPS data can be received from satellites.
• The vehicle should be located in a quiet area.

1. Ignition ON/vehicle in Service Mode, press the blue OnStar Call button.

2. Verify that your voice is heard clearly by the OnStar Call center.

• If your voice can not be heard clearly

Refer to OnStar Microphone Malfunction (IO5/IO6/IOB) or OnStar Microphone Malfunction (IOR/IOU/IOT/IOS)

• Go to next step: If your voice can be heard clearly

3. Verify that the system responds appropriately to all voice commands by pressing the voice command button and attempting to operate the system using multiple voice commands.

• If the OnStar system does not respond to any voice commands

Replace the K73 Telematics Communication Interface Control Module

• If the OnStar system responds to some, but not all voice commands

For tips on proper pronunciation, refer to OnStar Description and Operation (UE1 with IOB/IO6) , OnStar Description and Operation (UI3) , or OnStar Description and Operation (UE1 without IOB/IO6).

• Go to next step: If the OnStar system responds to all voice comman

4. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair procedure.

Control Module References for telematics communication interface control module replacement, programming, and setup.

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