Tl* the contact owns a 2007 chevrolet trailblazer. while driving at 30 mph, the service traction control light illuminated on the instrument panel. the brakes seized when the contact attempted to stop the vehicle. the contact stated that the failure occurred intermittently and on a previous occasion. the vehicle was not diagnosed or repaired. the manufacturer was not made aware of the failure. the failure mileage was 136,000.