Just picked up my '08 2500 Diesel and am really happy with it. Dodge/Cummins trucks have always been used by my family, but it took me a long time to be able to afford my own.
I have a question about the low pressure warning light. It came on shortly after I picked it up and it seems like like it happened after my son pushed the light load button on the dash. I checked to tire pressure in all four tires and they were all above the required pressure (60 lbs in the rear and 70lbs in the front). The light will not shut off. Any ideas?

Thanks

 

could be a bad sensor. Not sure how to find out which one????

 

Yeah, dont those things have batteries in them?? Could be a sensor like Dirty said.

 

Make sure the spare doesn't have one and it is low. The dealer can scan it and tell which sensor is out of spec.

 

now thats funny spare tire being low on pressure...nuts but i guess it could be...nice to know new vehicles come with such add ons...

 

I know my dads truck tells him which tire it is (Chevy) and my moms Pontiac also tells her which one it is. Just gotta be careful if you rotate tires

 

When I was working in a tire shop I had to take some stupid TPMS course to know how to recalibrate all the sensors and how they work.. Most of the sensors will also trip if they are over pressure.. I dont know where the sweet spot is for our truck ones but the manual should tell you some info, most of the cars like hondas and chit keep the light off between 20-40psi.. anything over or under that will turn the light on..

 

May have to clear the code to have the light go out.

 

This is funny because it actually got me a couple of weeks ago. My wifes Jeep had the light on so I checked all 4 tires and they were fine. I was starting to get pissed because I figured one of the sensors had gone bad, and of coarse they are somewhere around $100 a piece. Then it hit me, I crawled under the back and checked the spare. Guess what, low pressure. Filled it up and the light went off.

 

Somehow I was thinking you were going to say it was the Jeep that had a low tire. lol