Tire Pressure Monitoring System problems of the 2007 Chevrolet Silverado 1500

2007 Chevrolet silverado tpms (tire pressure monitor system) inoperative. The tpms system does not relearn as outlined in the vehicle owner manual and if attempted the system is rendered inoperative. A consumer may not know the system malfunction until the first attempt to relearn, but gm supplied document id# 1883524 indicates general motors was aware of the issue on 12/28/06. Despite this information they continue to ignore this issue. It has now been one year since they have identified this issue. I also attempted the relearn procedure in a 2008 vehicle as well and it did not function either. I have made several attempts contacting gm and including the selling dealer to resolve this and no fix is available. Specifically gm business resources paulo salvador (800-231-1841 ext 11824) states ?no fix will be available?. With the assistance of gm customer assistance performing the relearn procedure the system is disabled and inoperative. I don't think this was the intent of the system. The dealer has been able to relearn the system using a tool only and this operation is not 100% either. Some instances the tires were relearned in the wrong locations. Personally this resulted in a front tire low indication when actually it was the right rear tire that was low. And as stated before when attempting to relearn, the system goes inoperative and no tire pressure information is available. Further research concluded that dealer technicians do not relearn tpms when rotating or servicing tires. Gm needs to be held accountable for the incompetence in development and repair of this system. Gm claims they are working on a fix to correct this issue but it?s been over a year now and this should not be acceptable. I can only imagine what it will take before gm reacts.