Cadillac STS Forum - 2005 through 2012 Discussion, Trunk switch antenna in Past Cadillac Vehicle Discussion; I know the trunk proximity antenna is located behind the rear bumper cover but how do I access it. Do ...
I know the trunk proximity antenna is located behind the rear bumper cover but how do I access it. Do I have to remove the entire rear bumper cover.
Funny thing mines doesn't work unless the keys are in the trunk.
The antenna actually clips into a plastic bracket that attaches to the rear bumper fascia. The plastic bracket also provides several attachment points for the rear fascia wiring harness. You will need to remove the fascia to access this and if I'm not mistaken, you will possibly need to separate the bracket from the fascia requiring it to be pop-riveted back in place (two rivets total) once any work is completed. I have circled the antenna location in the photo below.
The rivets can be installed with any general purpose pop-rivet gun, however they are a special type of pop rivet that you may find difficult to easily source. I bought mine from GM in a bag of 10, not a bad thing but I did have to wait for them since no one had them in stock.