Onstar(R) Cellular Antenna Replacement
REMOVAL PROCEDURE1. Loosen the left rear sail panel (1).
2. Remove the left rear side bolster.
3. Disconnect the coax assembly.
4. Remove the coax assembly.
5. Remove the cellular antenna (1).
6. Disconnect and remove the cellular antenna coupling box.
INSTALLATION PROCEDURE
1. Install and connect the cellular antenna coupling box.
2. Install the cellular antenna (1).
3. Route and install the coax assembly.
Pull back the driver side C-pillar and route the straight connector end of the cellular coax up to the headliner. Pull the coax through and route the coax above the rear overhead trim. When routing the coax behind the driver C-pillar, you may wish to loosen the screw in order to gain access.
4. Connect the coax assembly
5. Install the left rear side bolster.
6. Install the left rear sail panel (1).
7. Verify that the exterior antenna whip (1) and the interior antenna foot (2) are visually squared to the surrounding trim. Verify that no edge or corner has come free from contact with the glass (3). The whip will bend on impact but the swivel screw will keep the whip in position.