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Carhelp4u
Carhelp4u, ASE CERTIFIED TECH
Category: Chevy
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Experience:  ASE CERTIFICATION
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Where do I find the Onstar module(VIU/VCIM) on my 2008 Suburban?

Resolved Question:

Where do I find the Onstar module(VIU/VCIM) on my 2008 Suburban?
Submitted: 7 years ago.
Category: Chevy
Expert:  Carhelp4u replied 7 years ago.
This unit is located in behind the radio and heater control unit on the dash. You must remove these parts to access the VIU. Feel free to contact me with any questions or problems! Good luck!
Customer: replied 7 years ago.
I've tried that. I took the radio out and air control panel off but I didn't see it or at least it's not obvious. Is there another plastic "wall/panel" that is in the way?
Expert:  Carhelp4u replied 7 years ago.

Here is an illustration. Note #5

graphic

(1)I/P Trim
(2)Fuse Block - I/P
(3)Body Control Module (BCM)
(4)Speaker - Subwoofer (UQA)
(5)Vehicle Communication Interface Module (VCIM) (UE1)
(6)Digital Radio Receiver (U2K)

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