Air Brake Wheel Speed Sensor problems of the 2002 GMC Sierra

When you are going 3 to 6 miles per hour going slow or coming to a stop the abs system fails causing the brakes not to work, you have to push really hard on the pedal just to get it to slow down. I,ve talked to other people who have GMC and chevy pick-ups and they have had the same problem. This is something the should be repaired by gm before someone is killed. I also found out today that canada has issussed a recall for this problem. Does it take someone to get killed or injured be the NHTSA does something?.