Voice Recognition Inoperative

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: OnStar Schematics Connector End View Reference: Entertainment/Communication Connector End Views
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	IMPORTANT: The vehicle must be located in a quiet area. Turn ON the ignition, with the engine OFF. Press the OnStar® Call Center button. Ask the OnStar® operator if your voice can clearly be heard. Does the OnStar® operator hear your voice?	Go to Step 3	Go to Microphone Inoperative - Caller Cannot Be Heard
3	Press the Call Answer button. Pronounce all hands-free commands. Refer to OnStar Description and Operation for proper pronunciation. Did the OnStar® system recognize any of the voice commands?	Go to Step 5	Go to Step 4
4	Press the Call Answer button. Have another person pronounce all hands-free commands. Refer to OnStar Description and Operation for proper pronunciation. Did the OnStar® system recognize any of the voice commands?	Go to Step 5	Go to OnStar Description and Operation
5	The system is operational, but cannot identify certain word commands due to pronunciation. For tips on proper pronunciation refer to OnStar Description and Operation . Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2