Cellular Communication System: Removal & Installation Chevrolet Silverado 3500

Removal Procedure

1. Remove the I/P trim panel. Refer to «Trim Panel Replacement - Instrument Panel (I/P) Upper»(ref-184121-S09813216512005082200000) in Instrument Panel, Gages and Console.
2. Lower the headliner. Refer to «Headliner Replacement»(ref-184122-S23148783902005082200000) in Interior Trim.
3. Disconnect the cables from the antenna base.
4. Remove the cable retainers from the roof and pillar.
5. Disconnect the cable (3) from the module.

Installation Procedure

1. Install the cable retainers to the roof and pillar.
2. Connect the cables (3) to the module.
3. Connect the cables to the antenna base.
4. Install the headliner. Refer to «Headliner Replacement»(ref-184122-S23148783902005082200000) in Interior Trim.
5. Install the I/P trim panel. Refer to «Trim Panel Replacement - Instrument Panel (I/P) Upper»(ref-184121-S09813216512005082200000) in Instrument Panel, Gages and Console.

1. Lower the headliner. Refer to «Headliner Replacement»(ref-184122-S23148783902005082200000) in Interior Trim.
2. Disconnect the cables from the antenna.
3. Loosen the retaining nut until the antenna assembly can be pulled from the top of the roof.

Scheme 6

1. Place the antenna assembly on the roof opening.
2. Tighten the retaining nut. Tighten: Tighten the nut to 6 N.m (53 lb in).
3. Connect the antenna cables.
4. Install the headliner. Refer to «Headliner Replacement»(ref-184122-S23148783902005082200000) in Interior Trim.

OnStar Button Assembly Replacement

The OnStar button assembly located on the rearview mirror can not be serviced separately from the rearview mirror. Should the button assembly need to be replaced, the entire rearview mirror assembly will need to be replaced. Refer to Rearview Mirror Replacement in Stationary Windows.

Scheme 7

Scheme 8

1. Remove the Instrument Panel (I/P) upper trim panel. Refer to «Trim Panel Replacement - Instrument Panel (I/P) Upper»(ref-184121-S09813216512005082200000) in Instrument Panel, Gages and Console.
2. Fully open the I/P storage compartment.
3. Disconnect the electrical connectors (2) from the Vehicle Communication Interface module (VCIM) (1).
4. Disconnect the coaxial cable (3) from the VCIM.
5. Remove the screws (1, 3) from the passenger side upper I/P support (2).
6. Remove the passenger side upper I/P support (2).
7. Remove the screw (1) retaining the VCIM bracket to the I/P.
8. Remove the retainer from the VCIM bracket.
9. Remove the nuts holding the mounting brackets to the VCIM.
10. If necessary, move the cross-car duct forward slightly in order to make room for the removal of the module.
11. Remove the VCIM and bracket assembly from the I/P.
12. Remove the nuts (4) from the VCIM mounting brackets (2).
13. Remove the mounting brackets (2) from the VCIM (1).

Scheme 9

1. If replacing the VCIM, record the 10-digit STID number, and the 11-digit ESN number from the labels on the new module.
2. Ensure the nuts (3) are installed on the module mounting brackets (3).
3. Install the mounting brackets (2) to the VCIM (1).
4. Install the nuts (4). Tighten: Tighten the nuts to 2 N.m (18 lb in).
5. If necessary, move the cross-car duct forward slightly in order to make room for the installation of the module.
6. Install the VCIM and bracket assembly to the I/P.
7. Install the push in retainer.
8. Install the VCIM screw (1) to the I/P. Tighten: Tighten the screws to 2 N.m (18 lb in).
9. Install the passenger side upper I/P bracket (2).
10. Install the I/P upper bracket screws (3). Tighten: Tighten the screws (3) to 2 N.m (18 lb in).
11. Install the I/P upper bracket screws (1). Tighten: Tighten the screws (1) to 50 N.m (37 lb ft).
12. Connect the coaxial cable (3) to the VCIM.
13. Connect the electrical connectors (2) to the VCIM.
14. Install the I/P trim panel. Refer to «Trim Panel Replacement - Instrument Panel (I/P) Upper»(ref-184121-S09813216512005082200000) in Instrument Panel, Gages and Console.
15. Install the scan tool. Use the special functions menu in order to perform the OnStar® setup procedure for this vehicle.
16. Move the vehicle to an open area that is away from tall buildings and with a clear view of unobstructed sky. Allow the vehicle to run for 10 minutes.
17. Use the ID information menu on the scan tool to access the new station ID (STID) and the electronic serial number (ESN) from the new VCIM.
18. Press the blue OnStar® button to connect to the OnStar® Call Center and perform the following procedure: Tell the advisor that this vehicle has received a new VCIM. Ask the advisor to add the new STID and the ESN to update the customer's account. Follow any additional instructions from the OnStar® advisor. Ask the advisor to activate the OnStar® Personal Calling feature, if available.
19. The default language for voice recognition in the generation 5 OnStar® module is English. To change the language resident in the module, refer to «Service Programming System (SPS)»(ref-184120-S18443623862005082200000) in Programming.

Scheme 10

1. Remove the overhead console. Refer to «Console Replacement - Overhead»(ref-184122-S07252984812005082200000) in Interior Trim.
2. Disconnect the microphone (2) connector from the jumper harness.
3. Unclip the microphone bracket (1) from the overhead console.
4. Disconnect the microphone 2-way connector (2) from the mating 2-way connector.

1. Mount the microphone (1) to the overhead console at the left rear corner of the overhead console.
2. Clip the microphone bracket (1) to the overhead console.
3. Connect the microphone connector (2) to the mating 2-way connector.
4. Reinstall the overhead console. Refer to «Console Replacement - Overhead»(ref-184122-S07252984812005082200000) in Interior Trim.