Q: How to replace the Automatic Transmission Shift Indicator on Cadillac CTS?
A: The first step to replace the shift indicator involves disassembling the shift control knob and shift control trim plate through lifting the rear section followed by pulling it backward until the front retaining tabs disengage. The electrical connectors need detachment from the trim plate before removal of the Center Console assembly. To remove the shift indicator lamp sockets (1 and 2) you must rotate them one quarter turn before carefully spreading the retaining tabs to lift the back of the shift indicator past them. Release the front retaining tabs on the shift indicator by lifting its front edge before the shift indicator can be removed from the shift control assembly. The installation of the shift indicator starts by lowering it over the shift control shaft until front retaining tabs can go through their corresponding holes in the assembly. Then press down to lock them into place. Press down gently on both retaining tabs while oppositionally aligning them with the assembly sides. Position and secure both shift indicator lamp sockets (1 and 2) by turning them a quarter round to prevent loose attachment. Afterwards reinstall the Center Console assembly. After setting the front retaining tabs of the shift control trim plate into the console you should press down on the rear to secure the rear retaining tabs and then add the shift control knob.