Is it normal for an ignition switch to be replaced with only 51,000 miles?

Flush all the fuel out, pull apart all the fuel system components and clean them, it is likely completely clogged with dried gas residue.

Could be lower arm bent,did you hit anything.

Yes. The light is activated by a sensor within the pad to tell if failure is in range. Depending on your driving habits you may have a few hundred miles of pad left, if you do not change them soon other damage can occur to rotors or calipers.

All I am getting from your discription, is that you
have a code & a misfire ,you have yet to diagnose.

Except for replacing the wires, that should last the life
of the car,your doing okey

You now are embarking on throwing parts at it,
not diagnosing.

I can't tell you how to continue,as I don't know
if have any test equip or skills required.

You may have a bad ignition module or other
issues

Again,test,don't install 1 part,unless something
tests bad.

Maintenance light does not man rush to garage.but having it regular maintenance done at regular specified period is always good for long life of your car.

according to the owners manual there is no 50,000 mile service, it is due at 51,000, the recommended service by Chrysler is as follows:
1.CHANGE OIL AND FILTER
2.ROTATE TIRES
3.INSPECT ENGINE AIR FILTER AND REPLACE AS NEEDED

Dealers have there own services that they recommend at mileage intervals that may vary from factory recommendations, beware of those large expensive packages they try to sell u.

check the plug gap 25th

Never have heard anything on this problem and have 3 friends with these cars with more mileage and they have not had this issue.

sound like fuel sending unit has a loose wire or need replacing.

check fuse, maybe you just have a blown fuse. Or you might want to see if you need it charged.