I was pulled over by my local police department for defective brake lamps 3 times. i have gone to my local chevy dealerships and they replace the switches 4 times. i then got pulled over again so i brought it to lemay buick and gmc in kenosha wi. they replaced the brake lamp switch 2 times. when you push on the peddle and let up just a hair the brake light go inop. this is a major concern for me because i could get rear ended at anytime with no brake lights. i hooked up a light on my dash to let me know when they are or are not working at highway speeds the lights do not work 95% of the time going 70mph and slowing down to 55mph the lights don't even blink. i tried calling gmc and they said there is not a problem with the lights on these vehicles. *tr