NHTSA complaint #11562463

Owner complaint summary

During the month of November while driving on Interstate 35 inTexas I attempted to administer my braking system during slowed traffic and they did not respond. The brake pedal became completely stiff and I had to apply incredible pressure to get the vehicle to slow down until I turned on my hazards and rolled to a stop on the shoulder. I did not have any alerts or warnings until I powered the vehicle off and powered back on to find my engine light on and the service brake assist alert on as well. I had it towed for service to which they replaced the vacuum pump, brake booster pressure sensor and brake fluid. Everything seemed to be working fine however a month later the same exact issue occurred. I took it in to the same place for service and had a brake inspection done and was told everything looked good and they were not sure what was wrong other than the ecm and ebcm were now reading codes. The issue is that this is intermittent with no warning and has been incredibly difficult to pinpoint the exact issue. This has also been incredibly pricey trying to chase an issue that appears one day and clears itself the next and lastly this has been terrifyingly frustrating as I do not know if i will have valid brake control or not on each ride. This issue could be life or death and was traumatizing as I had my son and mother in the car with me during the first event.