Has anyone had this warning light pop up on their dash? I was driving on the highway over the weekend and this light started flashing. I stopped and turned the car off and everything was fine. Manual says take it to a dealer, but thus far the car has been braking as normal.

 

You need to use a Bosch Hammer or PST2 to read and check the system when the error occurs. More than likely it is one of your wheel speed sensors. You can remove and clean the outside of them and that may help.