Labels problems of the 2012 Cadillac CTS

I am concerned about the repair kit sent to me by gm to correct a safety "defect" in my car. I wanted to make sure that the solution to this safety problem (labeled gm safety recall 1497) I received is the best and safest solution to fixing the problem. I received by regular us mail a repair kit and instruction letter to repair the ignition "run" problem. The kit included 4, approximately dime size thin metal key rings. Two of the rings were small enough to fit inside the larger rings. I was instructed to replace the rings that I received when I received the car from the Cadillac dealer with the new smaller rings. The bulky heads of the ignition key and rke transmitter made it very difficult to put on the rings. The rings became stretched when putting on the rings and now I am concerned about loosing either the key or transmitter. These rings could also have damage the the person or the transmitter when trying to get the small rings to fit the head of the transmitter. I want to know if the national highway traffic safety administration (NHTSA) approved this fix and is it enough to correct a problem that you thought was serious enough to issue a safety recall? the NHTSA campaign number for the recall is 14v394. Please advise in writing as soon as possible. Thank you.