One problem related to brake sensor has been reported for the 1998 Chevrolet Lumina. The most recently reported issues are listed below.
My brakes have always malfunctioned in my vehicle. They have been maintained and will go out when I am turning or trying to stop. I had them checked for 4 years straight- pads changed and completely serviced- my mechanic said it is some computer sensor in the brakes that goes out in this particular chevy. It is expensive and a defect. I have went through intersections- and been so close in rear ending several vehicles because of my inability to stop my car.