One problem related to adaptive cruise control has been reported for the 2013 Cadillac XTS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Cadillac XTS based on all problems reported for the 2013 XTS.
Dic(digital information cluster) fails to come on when I start the car. This is an electronic dashboard and also affects all the steering wheel controls including cruise control, turning signals and heads up display. Without the system you are essentially driving blind. I notified Cadillac customer service a few months ago and they said they would replace the part but I would have to pay for the labor but they have not done so thus far. This instrument failure apparently happens often and through 2015 they had a service call to replace the part but I was not notified and it did not happen in my car until recently.