Removal Procedure
Important: 
|    •  | The adhesion promoter must be used to assure adequate bonding of the  coupling. | 
 
|    •  | To obtain maximum adhesion between the new cellular antenna couplings  and the glass surface, the cellular antenna couplings and the glass must be  kept dry and above 15°C (60°F) during the installation, and for 24 hours  immediately following the installation. Otherwise the new couplings may not  remain on the glass. | 
 
|    •  | Do not attempt to reinstall the original couplings using any type of   glue, adhesive tapes, etc. Doing so may  eliminate the cellular signal transfer   through the glass and reduce the maximum performance of the system, including   the air bag deployment notification. | 
 
- Disconnect the coaxial  cable from the inner coupling of the mobile communication antenna (1).
 
Notice: If you use a razor blade or other sharp tool in order to remove the
adhesives or foreign objects from the inside of the rear window, use the blade
carefully. Damage to the grid  lines may result.
Important: If the vehicle is equipped with diversity antennas, move the thin, wide-bladed    plastic tool in the direction away from the antenna grid lines (2).
- Use a thin, wide-bladed plastic tool to cut the double back tape material    while lifting up on the inner antenna coupling.
 
Installation Procedure
- Clean the inside of the   back glass with alcohol wipe.
 
- Dry the glass thoroughly using a lint free cloth.
 
Important: 
|    •  | The adhesion promoter must be used to assure adequate bonding of the  coupling. | 
 
|    •  | Mask or protect the surrounding area before applying the adhesion promoter. | 
 
- Apply Glass Adhesion Promoter GM P/N 12378555 (Canadian P/N 88901239) to the back glass in the area the antenna coupling  is to be installed. Follow the Glass Adhesion Promoter instructions on the  product  label.
 
Important: 
|    •  | Ensure the inner and outer antenna couplings are aligned. | 
 
|    •  | Do not touch the adhesive backing on the antenna coupling. | 
 
- Remove the protective film from the adhesive backing on the inner antenna   coupling.
 
- If the exterior antenna   coupling is not installed, use a grease pencil on the outside glass to mark    the mounting location of the interior antenna coupling. Ensure the marks   are level.
 
- The mounting location for the couplings is on the left quarter    window, 100 mm (4 in) (A) rearward of the black   masking (1), and 48 mm (2 in) (B) below    the black masking.
 
- If the exterior antenna coupling is installed, align the inner   antenna coupling to the 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 back glass (4). Hold pressure on the inner  coupling (2)  for 10-30 seconds.
 
- Inspect the installation to ensure that no surface gaps are present   between the couplings (5,2) and the back glass (4).
 
- Connect the coaxial cable (1)   to the inner antenna coupling.