overhead console - mystery button

rtliquid

Registered Member
Original poster
Aug 6, 2015
43
Any idea what this button is/does? I can't find it documented anywhere.
 

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rtliquid

Registered Member
Original poster
Aug 6, 2015
43
Sorry, I should have mentioned that it's my newly acquired '04 Trailblazer. The only aftermarket mods that I'm aware of are a Sony stereo and a power brake booster.
 

Mooseman

Master Blaster
Moderator
Dec 4, 2011
22,548
Ottawa, ON
Welcome to the Nation! :tiphat:

That's doesn't look like factory installed. Have you tried it? Maybe something the previous owner added to operate something he has taken off.
 

rtliquid

Registered Member
Original poster
Aug 6, 2015
43
I've tried it and don't hear or notice anything happening. It did just occur to me that I have 2 roof antennae. Maybe it's for a power antenna. hmmm ..... I'll hafta try that.
 

Blckshdw

Likes lights and stuff
Moderator
Nov 20, 2011
10,255
Tampa Bay Area, FL
If you open the sunglasses holder, there's 2 small torx bit screws in the corners holding it up. In the front by the Homelink and memo modules, it's held in by clips. I'd say pull the console down and have a peek at what's going on up there, then you'll have a better idea of what you're dealing with.

And of course post pics, cuz we wanna see too! :biggrin:
 

Sparky

Moderator
Dec 4, 2011
12,798
Yeah that doesn't look factory. Take a peek and let us know. I'm curious!
 

djthumper

Administrator
Nov 20, 2011
14,940
North Las Vegas
If you have OnStar in the vehicle you will have 2 antennas up there.
 

rtliquid

Registered Member
Original poster
Aug 6, 2015
43
I don't have any Onstar controls or markings on my rear view mirror, so I'm guessing I don't have it. There's a member over on trailvoy who supplies build sheets / options lists for vehicles if you supply the VIN, but I haven't heard back from him yet.
 

djthumper

Administrator
Nov 20, 2011
14,940
North Las Vegas
You likely won't hear back from him any time soon. Trailvoy is just a library for reference, most of us came from there. Take a pic of things and we can try to help.
 
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Sparky

Moderator
Dec 4, 2011
12,798
I've seen some VIN decoder things online that may give you that info.
 

DAlastDON

Guru
Apr 6, 2014
5,550
Kentucky
gmcman said:
Would it have something to do with this?

Mounce said:
Probably not, thing to the left is a microphone for making calls through an aftermarket Bluetooth enabled radio.
If it has anything to do with an aftermarket radio then it will make some kind of noise. Kenwood DNX9140 i have has voice recognition. Press the request button and it prompts you to say a command.
 
Jul 6, 2014
9,237
Valet button for remote start? Puts a hit out on anyone named jimmy?

Is it toggle or momentary push?
 

rtliquid

Registered Member
Original poster
Aug 6, 2015
43
I have a sony aftermarket stereo with bluetooth and smartphone interoperability, etc. I just can't see where it does anything. It doesn't make any beep/sound/signal. I've tried speaking a voice command during/after pushing it. It's a momentary - not latching.
 
Jul 6, 2014
9,237
Previous owner could've had air horns and it activated them... I agree, trace it.
 

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