I am told that I can not change rear pressure sensor pressure for my back tires.

What is your question?

I must keep 80#s in the tires in order to keep the low pressure indicator light off. I do not need 80# in my rear tires when I am not towing my 5th wheel. I need just the indicator the same as the front tires. I do not need to change the indicator settings when I tow. 2014 dodge ram 3/4 ton diesel. I was not able to show model or engine type!