traction control and 3rd light issue

Bruce Fletcher

Asked by Bruce Apr 10, 2013 at 01:22 PM about the 2003 Cadillac CTS Base

Question type: Maintenance & Repair

Just purchased a 03 cts contingent on inspection sticker. The trac control light is on and the cruise
doesnt work as well as the 3rd brake light. I have heard that the second of 2 brake switches is
responsible for this .anyone have this problem? How did you fix it.

1 Answer


The brake pedal has two switches. One the turns on the brake lights and one that is used for other functions like cruise control. It actually sends a signal to the BCM and the BCM sends power to the CC.

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