One problem related to brake light on has been reported for the 2018 Jeep Compass. The most recently reported issues are listed below.
I was stopped at a red light, lght turned green and went to press the gas to go thru the light but car stalled and brake light came on. Car behind me almost ran into me and had to swerve to miss me. I had to turn the entire car off at the light, push the emergency brake system a few times until tge light went off before I could proceed through the light. This happened 6-7 additional times before I took it back to the dealership. The dealorship serviced the car 1 week prior and said noting was found on the diagnostic test. Car has stopped, just quit while driving and braking system light comes on. It happens when parked and at a red light or trying to move forward or while driving. Very scary.