Its been going on for a while, about maybe 2-3 weeks. What happens is the brake, slip, and VDC OFF lights come on at the same time. It usually occurs on a cold start in mornings around 40 to 60 degrees fahrenheit. But when I leave school in the afternoon around 2:30, its still on. But, on a third start for a day, the sensor lights turn off. So, when the lights are on, they usually turn off by a third start of the day. My brake fluid is fine. The lights just come on and off. I diagnosed the car with an OBD and the reading came back with code P0328, knock sensor. Does anyone know about this problem. I don't want to go to the stealership if its not necesssary. Any help is appreciated.

 

Do a search for "VDC Slip Brake"

You find 100 other threads questioning why this is happening (all of which have answers)

 

^ How is that a relevant question on this entire website?