One problem related to brake sensor has been reported for the 2004 Chevrolet Suburban. The most recently reported issues are listed below.
The contact owns a 2004 Chevrolet Suburban. The contact stated that the brakes were spongy and continued to feel weakened. The dealer replaced the sensor for the front anti-lock braking system five times to no avail. The contact stated that the anti-lock braking systems would independently engage at low speed and the brakes would feel shaky. The dealer was unable to provide a cause for the failure. The failure mileage was 37,520 and the current mileage was 80,000.