Three problems related to brake light on have been reported for the 2015 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Kia Motor Optima based on all problems reported for the 2015 Optima.
Head lights and brake lights keep shorting out making it hard for you to drive at night or even during the day. The anti lock brake jams and will cause you to slide if you are not carefully in the rain and snow.
The brake lights would not go off when I turned my car off. This ended up killing my battery. When I got the battery recharged it allowed the car to start without the brakes being pushed in. Also I noticed that the stopper had broken. This allowed the computer to think that the brakes were engaged even though the peddle wasn't pushed.
Both back brake lights went out at same time and we replaced lights and still does not work. Happened when I was driving home.