Why would 58 in the front turn the light on? Spec is 60/80, so 58 front isn't low enough to trip the light.

 

Mine has always come on at 64 and wouldnt go back off till it was at 80.

 

I think 55 is the low limit for the fronts.

 

No re-program required on your truck..........

 

OK, Ltngdrvr I just looked and I was completely wrong, you are correct the door actually does say 60/80. But was set from the factory for the low light to come on at 65 on all 4 corners as thats what I have experienced since day 1. The day I drove it off the lot it was 80 all the way around. I lowered them to just above where the light would stay out, so like 68 for all 4. The tire guys set the pressures like the door jamb says and did something different with the sensors themselves.
I've left it at 65 in the fronts 68 in the rears as it seems to ride/drive the best for me around there.

 

OK, Ltngdrvr I just looked and I was completely wrong, you are correct the door actually does say 60/80. But was set from the factory for the low light to come on at 65 on all 4 corners as thats what I have experienced since day 1. The day I drove it off the lot it was 80 all the way around. I lowered them to just above where the light would stay out, so like 68 for all 4.

i would take it to the dealer and get it fixed. Or, better yet, take it to a dealer who can set the alarm pressures to exactly what you want them to be, regardless of the door sticker.

 

Should be 60 front and 80 rear.

You have a 20% buffer

and at 21% the light will trigger.

so yeah, 47, should come on.

 

Heck I have no sensors and it took about a week for me to get a light........

 

For some reason, the geniuses at the dealership decided they were going to put 80psi in my 3500's front tires during PDI. By the time I got home on the 100+ degree day, the tires were over 95psi. The TPMS system said nothing. My 2500 used to complain closer to 55psi, but never noticed if they'd complain with too much pressure.

I'm also shocked you got 18k out of the stock tires!

 

The pdi guys at most dealers are idiots.

And, I got over 80K on two of my original stones, and over 120K out of the other two.

 

mine is 60 in front, 75 in back

 

The TPMS warning light and pressure threshold is not set based on the TPMS sensors in the wheel. The threshold setting is in the BCM not in the sensor itself. All the sensor will do is notify the on board computer of the pressure in each tire. The truck will only throw the error light if the pressure in the tire is below the BCM threshold setting. 58psi up front will not cause the light to come on.

 

They are set at a 20% allowed lower PSI. So the fronts allow 49 and the rears 65. Can't change that.

 

There is a way to reprogram your RHF tire sensors for the BCM to read. Been done just look for the huge thread on tpms turn the light off.. http://www.cumminsforum.com/forum/2013-general-discussion/1670642-how-set-tpms-any-pressure.html
I had my BCM changed to 50psi all the way around and can go up as far as you want. The second step in the process on which the dealer can no longer do is reprogramming the RHF sensor threshold. You have to find someone with the old Witech code or the other programmer I can't recall right now starts with an A and have your vehicle pin to allow the change.

 

I just experienced a low tire in the front and it didn't come on until it was down to 48 psi.

 

and you will have to take it back up to 60 or more to get the warning to go off.