Three problems related to brake sensor have been reported for the 2011 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Hyundai Sonata based on all problems reported for the 2011 Sonata.
The car is still throwing the ecm code up after its been replaced supposedly the brakes have been grinding since day 1 the brake actuator is bad something is making the throttle position sensor to keep going bad the dealership was aware of all the issues and made us aware of 2.
As I applied the brakes I could feel the abs trying to kick in and then the car started excellerating. I was approaching a very busy street so I put the car into a snowbank. I had the car towed to dealership, in fear of driving it, to get ot inspected. Mind you, this make and model car has had several recalls. While in shop they fixed two recalls #'s 132 and 136 and then they diagnosed that the brake sensor malfunctioned and that they had to recode it. I was fortunate to have avoided what could have been a major accident. They, Hyundai, don't really want to stand behind their product once it's past warranty.
Brake pedal sensor failure resulted in a car that wouldn't start. The key-less entry depends on the brake pedal being depressed, otherwise the ignition will not turn over. Under normal operation when the driver is trying to start the car, the key must be inside the vehicle, the driver must depress the brake pedal and then press the ignition button. The car normally turns over. In this situation all systems function as if the car does not know the brake peddle is being depressed. The battery has full charge, all accessories function normally, but the ignition will not turn over. Because there is no way to manually start the car, the car is rendered completely useless.