general problems of the 2002 Chevrolet Monte Carlo

About October 10th, 2017 I was coming up on a traffic light and when I applied the brakes, the pedal would not go down. I was going about 45 mph by the grace of god I was able to blast through an intersection and miss everyone, everything!. Rattled I guess I shut the car off when I regained my composer I started the car and everything was fine. I did not want to believe this happened! I thought I did something wrong maybe had my foot under the brake pedal or something. Have been driving the car since 2 weeks ago was stranded in a parking lot, would not start. Had the car towed home, tried to start it and started right up. Now service track light is on and anti lock brakes is on and service engine light is on sometime and the cruise light is on. Yesterday wife was driving the car and same thing no brakes, you could not push the pedal down it is as if there is something under the pedal it's that solid. My concern for my own safety as well as other Monte Carlo owners is most important. If either time we would have been on a expressway where we could not turn to a shoulder this would be catastrophic . Called the service manager where the car was purchased, also harbor chevy in michigan city, in and gates chevy in south bend, indiana, all said they have never heard of this before. Got on the internet and found similar posts in car complaints without any problem, seems odd gm does not know anything about this. For every ones own safety this should be a redundant system in older cars you would not lose all brakes. Could understand if you lost anti lock part but still could stop. This has to be a overlooked flaw in design and gm should be made to correct this before someone gets killed. If someones been killed by this how could they tell you that he lost his brakes? thank you mike.