Installation Procedure
- Place the antenna assembly on the roof opening.
- Tighten the retaining nut. Tighten: Tighten the nut to 6 N.m (53 lb in).
- Connect the antenna cables.
- Install the headliner. Refer to «Headliner Replacement (w/ Sunroof)»(ref-196949-S34546525122005101000000) or «Headliner Replacement (w/o Sunroof)»(ref-196949-S16085180052005101000000) in Interior Trim.
Removal Procedure
- Disconnect the coaxial cable from the inner coupling of the mobile communication antenna.
- Use a small wide-bladed plastic tool to cut the double-back tape material while lifting up on the inner antenna coupling.
Scheme 10
Scheme 11
- Clean the inside of the rear window with an alcohol wipe.
- Dry the glass thoroughly using a lint free cloth.
- Apply glass adhesion promoter GM P/N 12378555 (Canadian P/N 88901239) to the rear window in the area where you will install the antenna coupling. Follow the instructions on the product label.
- Remove the protective film from the adhesive backing on the inner antenna coupling.
- Align the inner antenna coupling to the existing exterior coupling.
- Press firmly on all 4 corners and on the center of the antenna inner coupling (2) in order to ensure proper adhesion to the rear window (4). Hold pressure on the inner coupling (2) for 10-30 seconds.
- Ensure that no gaps occur between the couplings (5, 2) and the rear window (4).
- Connect the coaxial cable to the inner coupling (2).
- Keep the vehicle dry. Allow 6-8 hours, at 15°C (60°F), for the adhesive to cure after installation.
- Install the inner coupling first if both the inner and the outer couplings are to be replaced. Refer to «Coupling Replacement - Antenna Inner»(ref-196939-S19717688032005101000000) .
- Use a small wide-bladed plastic tool to cut the double back tape material while lifting up on the outer antenna coupling.
- Clean the rear window with an alcohol wipe.
- Dry the glass thoroughly using a lint free cloth.
- Apply glass adhesion promoter GM P/N 12378555 (Canadian P/N 88901239) to the rear window in the area where you will install the antenna coupling. Follow the glass adhesion promoter instructions on the product label.
- Remove the protective film from the adhesive backing on the outer antenna coupling.
- Align the outer antenna coupling to the inner antenna coupling.
- Press firmly on all 4 corners and on the center of the antenna outer coupling (5) in order to ensure proper adhesion to the rear window (4). Hold pressure on the outer coupling (5) for 10-30 seconds.
- Ensure that no gaps occur between the couplings (5, 2) and the rear window (4).
- Keep the vehicle dry. Allow 6-8 hours, at 15°C (60°F), for the adhesive to cure after installation.
Scheme 12
- Disable the SIR. Refer to «SIR Disabling and Enabling Zone 2 (Coupe)»(ref-196951-S00773360792005101000000) or «SIR Disabling and Enabling Zone 2 (Sedan)»(ref-196951-S36348943332005101000000) and «SIR Disabling and Enabling Zone 6 (Coupe)»(ref-196951-S41368052052005101000000) or «SIR Disabling and Enabling Zone 6 (Sedan)»(ref-196951-S30577493352005101000000) in SIR.
- Remove the headliner. Refer to «Headliner Replacement (w/ Sunroof)»(ref-196949-S34546525122005101000000) or «Headliner Replacement (w/o Sunroof)»(ref-196949-S16085180052005101000000) in Interior Trim.
- Disconnect the antenna cable.
- Disengage the cable fasteners from the roof.
- Squeeze the antenna tabs to disengage the navigation antenna from the roof.
- Remove the navigation antenna from the vehicle.
Scheme 13
- Connect the antenna cable.
- Install the antenna cable fasteners in the roof.
- Position the navigation antenna.
- Press on the antenna until the clips engage.
- Install the headliner. Refer to «Headliner Replacement (w/ Sunroof)»(ref-196949-S34546525122005101000000) or «Headliner Replacement (w/o Sunroof)»(ref-196949-S16085180052005101000000) in Interior Trim.
- Enable the SIR. Refer to «SIR Disabling and Enabling Zone 2 (Coupe)»(ref-196951-S00773360792005101000000) or «SIR Disabling and Enabling Zone 2 (Sedan)»(ref-196951-S36348943332005101000000) and «SIR Disabling and Enabling Zone 6 (Coupe)»(ref-196951-S41368052052005101000000) or «SIR Disabling and Enabling Zone 6 (Sedan)»(ref-196951-S30577493352005101000000) in SIR.
Scheme 14
- Remove the rear shelf trim. Refer to «Trim Panel Replacement - Rear Window Shelf (Late Production)»(ref-196949-S33970795482005101000000) in Interior Trim.
- Remove the CIM from the bracket by pulling back on the bracket tabs.
- Remove the OnStar® bracket screw.
- Remove the OnStar® bracket from the rear shelf.
- Install the OnStar® bracket to the rear shelf.
- Install the OnStar® bracket screw. Tighten: Tighten the screw to 2.5 N.m (23 lb in).
- Install the CIM in the bracket.
- Install the rear shelf trim. Refer to «Trim Panel Replacement - Rear Window Shelf (Late Production)»(ref-196949-S33970795482005101000000) in Interior Trim.
- Remove the rear shelf trim. Refer to «Trim Panel Replacement - Rear Window Shelf (Late Production)»(ref-196949-S33970795482005101000000) in Interior Trim.
- Remove the interface module from the bracket by pulling back on the bracket tabs.
- Disconnect the electrical harnesses and the antenna cable.
- Connect the antenna cable and electrical connections to the VCIM.
- Install the VCIM into the mounting bracket.
- Install the rear shelf trim. Refer to «Trim Panel Replacement - Rear Window Shelf (Late Production)»(ref-196949-S33970795482005101000000) in Interior Trim.
- Reconfigure the OnStar® system. Refer to «OnStar Reconfiguration (Gen 6)»(ref-196939-S10192714772005101000000) or «OnStar Reconfiguration (Gen 6.1)»(ref-196939-S27374822372005101000000) .