Noob 1500 owner here, just brought an almost new 08 home yesterday & the light came on. Checked my pressure & it was low so I filled them all to what the door sticker said & the light still comes on... I'm guessing from reading all these previous posts that the real point of this light is to notify drivers to check their pressure... then bug the hell out of them until the end of time?

 

Ah the ongoing saga of the light that annoys. The last couple of times I drove my truck no light. Great. Truck sat in my shop for a couple of weeks, the weather is hot, today I start the truck and the light stays on all day to town and back. Who knows why. It does this at any temperature. There is no pattern or reason to it. Just like a mosquito in the room at 3 AM it`as the previous stated it`s put there to annoy. I actually did have a flat tire a few weeks ago but didn`t need a light to tell me that, the angle the truck sat at told me plus the tire had a very large flat spot on the bottom.

 

Anybody that needs an idiot light (and three ding dings) to tell them they have a low tire, should have to take a sobriety test.

This is obviously a chronic problem, it's too bad that Dodge hasn't come forward and addressed it, maybe not as a full blown recall but just to let everybody know that they're aware of it.

I just bought a 2008 Quad Hemi that I'm really happy with, I drove one other and both had the tire light on.

 

If you've got a diesel, then 50 psi isn't going to cut it. You're under-inflating your tires, and if you didn't get load range E tires, you're probably over-loading your tires and creating a hazardous situation.

What does your door sticker say? Mine wants 65 front, 45/70 rear, or something like that.






My TPMS has worked flawlessly for the month and a half and ~6000 miles I've owned my truck, with one exception.

While towing the 14k pound trailer, the TPMS light came on and started blinking at me while cruising down the freeway.

Being one of those people who errs on the side of caution, I reduced speed immediately, and pulled off at the next exit.

Having checked all 4 tires for loss of pressure, I was baffled - they were all within spec.

I read the owner's manual sitting there in a vacant parking lot on the side of the freeway exit.

What did it say?

It said that the TPMS light can also get triggered by a passing vehicle or any other electronic that uses the same frequency.

Perhaps some of you with TPMS issues have aftermarket electronics interfering with your TPMS?

In my case it was most likely a car that passed me whose TPMS system was on a close enough frequency that it tricked my TPMS into thinking I had a low tire.

A few miles down the road it righted itself, and several thousand miles later it's still fine.

 

I see this is an old thread. I'm trying to find more info on this "Light Load" button I've got on my 2010 Dodge 2500 diesel. I can't find crap on the DVD that comes with the truck now that they are trying to save trees. My paper owner's manual is on order.

According to the stickers in the door jam of my truck, the manufacturer's recommended tire pressure is 55/70 front/rear for heavy loads and 45 all the way around for light loads. These days, I typically tow around 5,000 lbs hauling toys on the weekend but most of my driving is non-towing during the week. This is what I was towing with my last 1/2 ton. So, I've dropped the tire pressure down to 45 PSI and I'm going to try out this "Light Load" button. But I'm curious, what makes you think that 50 PSI isn't going to cut it with the diesel?

Are you towing with a 2500? I know my 2010 2500 diesel is rated up to 13,450 lbs. My 2005 3500 diesel was rated at just over 14,000. Was there a change in towing capacity on the 2500 in 08 or are you towing more weight because you've upped the HP on yours? I might be wrong but I'm thinking the limiting factor on these Dodge diesels is more likely in the suspension, brakes or transmission more so than the horsepower. How is that 14,000 lbs working for you?

 

I had *no* idea the trailer weighed that much until I was 1/2-way across the country. As soon as I could, I got a shipping container from upack.com and reduced the amount in the trailer. The gross weight on my trailer is 10k, and I didn't figure that our belongings weighed anywhere near as much as they obviously did.

The sticker on the receiver of my truck says max 12,000 trailer weight. I'm guessing it's due to the lack of the heavier overload springs found in the 3500, so even with weight distributing bars you're still overloading the rear suspension, causing the front end to be light, which will have a negative impact on handling.

My truck's sticker calls for 60 front both light and max load, 45 rear light and 70 max load. 50 would be under-inflated, unless you're altering tire size significantly from stock. It may be fine, but you may find that it handles a little squishy, or you may notice your tire shoulders wearing faster than the center lugs.

Your 2010 has a different steering setup, one that doesn't alter toe under compression, and perhaps that allows for lower tire pressures while not hauling.

I don't know, I'm only following Dodge's recommendation on that.

Back to the light load button - when you're not hauling, you can drop the pressures down to a 2nd threshold and then press the light load button. All it does is keep the TPMS light from turning on until you're lower than that 2nd level.

 

'08 Quad cab 1500. Light came on over two months ago. Put air in the tires IAW the door panel, light stays on. Every time I start the truck I get four warning bings. I had all four tires replaced and the problem persists. I took it to the dealer and we checked the sensors. The sensors are working as they are supposed to. The dealer hooked up the OBD reader and cleared the codes. The light still comes on. He mentioned that the reciever for the sensor is the problem but that would cost money as my warranty ran out six thousand miles ago. Any suggestions?

 

I haven't found the answer yet but I'm hoping that someone reading this forum will help. I'd just like to be able to disarm the crap. Unplug it, pull the light out and shoot the 'dinger'.

 

I dropped the PSI in my tires down to 45 and hit the "Light Load" button. It rejected the light load change at first. Then after a mile or so it gave me a low TPS warning and then accepted the light load when I hit the button. No problems so far. I hate the fact that others are having issues with theirs and hope this isn't typical of their TPSs.

 

Added electronics only means added problems. I still don't get why people want electronic steering, brakes, throttle, ignition, gear selection.... they can't even get tire pressure monitoring perfected...