Tahoe 07 Navigation Problem
CF Active Member
Joined: Nov 2006
Posts: 217
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RE: Tahoe 07 Navigation Problem
ORIGINAL: TMW597
Let's drop the OnStar references out of this thread just to avoid confusion. The point of this thread is about the fact that janracals navigation voice prompt is not working. Just staying on the subject.
I would think to check the navigation voice prompt volume first as ty_1 suggested. I do know that this volume control is sensitive. I turned mine all the way up one time thinking that it was too low, and it damn near blew my head off. The trick I found out is to set the volume with the radio's speakers down low to get the right level.
Mine does the exact same thing by the way, but I think it's because it doesn't have the VSS hooked up. ???? Not too sure on that on though.
Let's drop the OnStar references out of this thread just to avoid confusion. The point of this thread is about the fact that janracals navigation voice prompt is not working. Just staying on the subject.
I would think to check the navigation voice prompt volume first as ty_1 suggested. I do know that this volume control is sensitive. I turned mine all the way up one time thinking that it was too low, and it damn near blew my head off. The trick I found out is to set the volume with the radio's speakers down low to get the right level.
Mine does the exact same thing by the way, but I think it's because it doesn't have the VSS hooked up. ???? Not too sure on that on though.
Here is what I noticed before/after I hooked up the VSS wire:
Before: You input a destination, you get the fuscia colored route drawn up on the nav map, and a voice prompt that tells you something like "proceed to your route & navigation will begin". Then thats all you get - no turn by turn or proximity ("proceed for approximately X miles") updates. When you finally arrive at the destination I did get a voice prompt to that effect.
After: Turn by turn voice prompts immediately commence as well as proximity updates (distance to next action "countdown" bar). Also, I noticed that instead of your position updating ~ every 5 seconds, once the VSS was connceted the cursor was moving about every 2 seconds.
CF Active Member
Joined: May 2006
Posts: 240
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RE: Tahoe 07 Navigation Problem
Boy oh boy did I have this same problem. From day 1 that I took delivery it did not work "as designed".......Sometimes it would start giving me the voice commands then all of a sudden, the voice prompts would start, even though the display would still show the turn by turn mapping. I have the link to my problem and how it was resolved here:
https://chevroletforum.com/m_3082/tm.htm
I think you will see I had to make several trips to the dealership. My service tech new I had the problem but because there was "no" error code, GM said there was no problem. But thru the help of GM Customer service and my GM tech, problem solved....new NAV radio.
https://chevroletforum.com/m_3082/tm.htm
I think you will see I had to make several trips to the dealership. My service tech new I had the problem but because there was "no" error code, GM said there was no problem. But thru the help of GM Customer service and my GM tech, problem solved....new NAV radio.
CF Beginner
Joined: Jan 2007
Posts: 4
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RE: Tahoe 07 Navigation Problem
Definitely a VSS issue! I just upgraded my 07 Avalanche to the GM Nav unit and have been playing around with the VSS cable ( I thought if I disconnected it, I would be able to "fool" the truck into thinking it was at a stoplight...
), so I could enter an address or scroll the XM cats. No the case..Just in case you were wondering, the features go grey...I guess Denso and GM thought of everything...If it's a new truck, bring it back to the dealer and tell them to investigate the VSS connection!
Just like konasmrz mentions below in his before and after explanation, I can replicate this EXACT situation, when I unplug or plug in the VSS connector in the back of the nav unit. Onstar has nothing to do with this!
), so I could enter an address or scroll the XM cats. No the case..Just in case you were wondering, the features go grey...I guess Denso and GM thought of everything...If it's a new truck, bring it back to the dealer and tell them to investigate the VSS connection! Just like konasmrz mentions below in his before and after explanation, I can replicate this EXACT situation, when I unplug or plug in the VSS connector in the back of the nav unit. Onstar has nothing to do with this!
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