Disable Onstar In 08 Silverado?

7LitreC5 · March 13, 2008

Is it possible to disable OnStar in an 08 Silverado without affecting anything else? If so how? I did a bunch of searching and did not find a conclusive answer.

Steveman · March 13, 2008

Well what you can do is just not sign up for it. Or just wait till the free year ends. Then you wont have it anymore.

Ranger · March 14, 2008

Or find the black box that controls it and cut the wires...Best way I think think of is to cut the connections at the antenna itself.

7LitreC5 · March 15, 2008

Has anyone out there actually done this?

jnpaddison · March 15, 2008

pull the fuse ?

Ranger · March 15, 2008

I haven't seen any fuses for Onstar in my box, at least not in the underhood one.

Deichler · March 15, 2008

Why would you want to do that in the first place??? Like the one guy said, wait till the free year is up and don't sign up. I personally like it, I have a cell phone but the truck gets reception EVERYWHERE, where the cell phone cuts out in deep valley's as we have. Personally, I would leave it. You don't know it's there if you never push the button.

7LitreC5 · March 15, 2008

I don't want to debate the validity of OnStar I am just looking for a way to disconnect it without having it affect anything else.

Why would you want to do that in the first place??? Like the one guy said, wait till the free year is up and don't sign up. I personally like it, I have a cell phone but the truck gets reception EVERYWHERE, where the cell phone cuts out in deep valley's as we have. Personally, I would leave it. You don't know it's there if you never push the button.

7LitreC5 · March 15, 2008

re. fuse

I can't figure out which fuse it is. I have looked at the labling and owners manual description on all of the fuse blocks. It is not obvious to me which fues in which fuse block it would be.

98 Z71 SLT · March 23, 2008

INFO Fuse 10amp

Driver side Instrument Panel fuse block

Tucson_02Silverado · March 23, 2008

The safest way to "disable" OnStar would be to disconnect the antenna and use something like a "cantenna" to safely have the antenna signal go to ground. I'm not sure of the ohm value of the transmission antenna used, maybe 58 ohms. The cantenna like device should be available from places that sell 2-way/ HAM radio equipment. And they would be a good source for more information on maintaining a transmitters equipment without having it actually get a signal in or out.

Silverado4x4 · March 23, 2008

Dont know why you want to disconnect it, I like it for the safety aspect. Imagine driving down the road and getting cut off or swerve to miss something then hit a tree no one around to call for help but onstar will do it for you. Oh well to each his own I guess.

Tucson_02Silverado · March 23, 2008

I think there are some that don't like the "Big Brother" aspect of the OnStar type system. The system can be initiated two ways, not just a user initiated one.

Example: OnStar can downlink to the vehicle to unlock the doors.

Plus to some, with someone having the potential to know of your whereabouts at any given moment, how fast you are going, do you have your seat belts on, etc. Add that now there are front passenger seat sensors to auto-shutoff the airbag, then can possibly also know that you have a passenger or a really big bag of burgers.

SKYrado03 · March 23, 2008

As an aside.....

Onstar is in the process of changing their service with GM vehicle's, not only truck's.

Where the old equipment will no longer work, and if you want to continue with Onstar, and have an 07-06 or older vehicle you need to have all the hardware swapped out at the dealer.

I believe 08's are okay, but again check with the dealer.

7LitreC5 · March 24, 2008

Thanks. I pulled that fuse a couple of weeks ago. The Onstar lights went out on the mirror. I'd like to find a wiring diagram so that I can see if that fuse actually powers the OnStar module.