I can understand your concern. However, it's not unusual for a refrigerator door to open sometimes when the freezer door is closed. This can happen due to the rush of air, that is forced into the opposite compartment, when the door is closed. Refrigerators now are built very tight and there is no place for the air to escape. Usually tilting the unit back and loading the door will help and also make sure the door is not in any kind of a bind. It must be free, so it will close by itself, if it does pop open.
Now, this model does have upper and lower cam closers that may be worn. The upper cam is # 2182179 and the lower cam is # 2155311. There are no instructions to replace these cams. The door will have to removed. To remove the door, first disconnect power to the unit. Remove everything from the door and close it. Now, remove the top door hinge and you will be able to lift the door up, off the bottom hinge. Lay the door down now and you will be able to replace the cams. They are held in place with screws. The upper cam is attached to the bottom of the door and the lower cam fits on top of the bottom door hinge.
The only time a door gasket needs to be replaced, is if it gets torn. The magnets do not wear out. If the gasket develops some gaps, you can use a hair dryer to smooth them out. Just be careful not to get the gasket too hot and melt it. I hope this will help you. If you would like more assistance, additional details will be helpful and I will be glad to assist you further. Thank you for using Manage My Life.
If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services