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01-01-2012, 10:53 AM #1
OnStar Unit Location within 2004 GMC Sierra?
I'm trying to find a diagram showing where the OnStar unit is hidden as my search for it has yielded no fruit. I strongly suspect it's under the dash behind the air bag as that's one of the few stones I've left unturned ... but I'm hesitent to go poking around, there, without a diagram or some explanation of how that area is put together.
Can anyone provide some insight?
01-01-2012, 11:14 AM #2
- Join Date
- Apr 2010
- Piermont,NY, back in Northern NJ now, But may be in IL soon....
I belive it's behind the glove box or in the dash08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X
01-01-2012, 01:33 PM #32007 Silver Birch Metallic Sierra Classic SLE Crew Cab Z71
Line-X bed liner
Putco box rails
Truxedo Lo Pro QT box cover
Cloud-Rider grill inserts
01-01-2012, 02:53 PM #4
I learned that yanking the fuse just disables to voice junk.
P.S. It's not behind the glove box, Enkie. It's also not behind the radio or behind the instrument cluster or under the driver's side kick plate. If it's in the dash it's gotta be up by the passenger side somewhere.
01-01-2012, 04:15 PM #5
My Onstar brain is located behind the lower middle dash panel that has the ash tray in it.
01-01-2012, 06:42 PM #6
01-02-2012, 07:09 PM #7
Found it. Passenger side -- behind the air bag. It can be (and was, shortly after I found it) disconnected from the glove box. I'll likely post a how-to on this with pictures, this week, such that others with the same body style as me know what to look for and what to disconnect. I'm also going to remove the sucker (without removing the dash; my small hands will likely let me). I got 80% of the way there but had to quit because the temp dropped quickly on me and it became too cold to work outside.
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