Section VI: Voice Recognition; Using Voice Commands; Using Voice Commands - Page 34

1. 

If the vehicle is located in a parking garage, tunnel, or an area where there are tall 
buildings or large trucks, those obstructions may be interfering with the GPS signal.  
Once the vehicle moves out of this area, the GPS signal should work. 

 
2. 

If there are objects placed on top of the instrument panel, these may be interfering 
with the GPS receiver.  Remove any objects from the dashboard. 

 
3. 

After-market glass tinting will interfere with the system’s ability to receive GPS 
signals and cause the system to malfunction.  Customers might have to replace the 
window to correct the problem.  This would NOT be covered by their warranty. 

 
4. 

You may not be able to receive a GPS signal if the satellites are being repaired or 
improved. 

If the vehicle is not in the correct position on the map, see the instructions for 
recalibrating the vehicle. 

 
 
Refer to the following for further info: 

Recalibrating the System

Section VI:  Voice Recognition 

Using Voice Commands 

 
To use voice recognition, do the following: 
 
1. 

Press the Talk symbol steering wheel control and release it when you hear a 

beep.  If the audio system is on, it will mute. 

 
2. 

Clearly state the command.  The commands are listed in the Navigation System 
Supplement (words in brackets are optional).  Commands are available for 
navigation, radio, CDs, auxiliary devices, and OnStar.  
 
 
Refer to the following for further info: 

Storing Voice Tags

Setting a Destination through Voice Recognition

Troubleshooting Voice Recognition