One problem related to brake light on has been reported for the 2017 Cadillac XTS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2017 Cadillac XTS based on all problems reported for the 2017 XTS.
After backing out of my garage, my xt5 after 3 previous brake stops two with stop signs, the next stop the brakes locked up with a sudden stop. I did nothing different with the 4th stop when the brakes locked. I noticed that the brake light was displayed and needed to be pressed to in order to drive the car to reach a city road.