Brake lights? Look at your car in the multifunction display between the tach. and speedo. the tail lights will illuminate on your little car if brakes are being applied due to being too close to a car in front of you. It's hard to see but it does happen. Also, just did 2600 miles in 6 days. The cruise control slows the car considerably while going around long turns at high speeds, one time it slowed me 9 mph on an exit ramp. Also slows the car 2-3 mph when going down hill, hitting a series of bumps or going over a dip. As I first posted there has to be some type of an accelerometer in the car to sense these motions. The best thing about the system is it will save you from rear ending someone if you become distracted. Also the LDWS will shut down in heavy rain and will send you a message it has occurred. Came back on after rain lightened up. One more item, I got a tone, I think it was when I went through 100 mph when I was passing a couple of trucks on a two lane road. That 100 mph mark is easy to break with an R Spec. Got 23.7 mpg cruising at 78 mph. Wonderful car, zero problems even with after market wheels tires and wheel spacers on the it.