Why are the lights on my radio shutting off while driving or sitting without the car running and my traction control light comes on and my security light comes on on the dash of my Cadillac CTS 2006

This may be a programming issue. We would be happy to make you an appointment & see if we can correct the problem, Call Terry at Rick's Automotive 417-887-2225.

I would start by checking your charging voltage while running with a voltmeter. This could be an under voltage issue from a bad alternator. It should be over 13 volts while runnings. Alex

In that case, you will need to scan the car for codes to see what is going on with the abs light. The other problem will need some more electrical testing by someone knowledgeable about the electrical system on the first gen CTS.Use this link to find a good shop near you. https://repairpal.com/repair-shops Alex