Has anyone been able to set the TPMS below 80lbs in EVIC 2014 2500

[SBreaux]

Hi All,

I purchased a new 2014 2500 CC 4x4 last week. When I took delivery there was 80 lbs pressure in all 4 tires. As you can imagine it was a wild ride home 165 miles away. Wondered all over the road. When I got home I lowered the pressure to 60 all around. I tow nothing at all. The door sticker states 60 in front and 80 in the rear. I dropped them all to 60 lbs. The ride was much better but I believe I still have way too much air in the rear. The outer edges of the tire tread in the rear about an inch or so is not making contact with the ground. I made an appointment with the dealer this past Wednesday and they tried for two hours to lower the set point below the 80 lbs in the rear but no go. There is no "light load" setting in the 14's. So every time I start the truck it immediately goes to the EVIC and flashes warning to inflate the rear to 80 pounds and has a red light in the dash. The front is obviously heavier and no problem with 60 pounds there so I don't understand the rear. Does the new 5 link rear suspension require this much air to work proper? I would really like to be able to lower the pressure in the rear and not have any warnings or red lights. I asked Firestone (factory tires) if 45 lbs would be too low in the rear and I was told no problem but not lower.

Anyway has anyone had any luck with any dealer being able to change the set point or is this just the way it is with 2014's? 80 lbs?

 

[Chris N5CWM]

I'd love to hear an answer to this as well. I'm running 72 PSI in the front and rear. So far no LTPWS warning, but I'd rather run it lower for a better ride and tire wear as well.

Subscribed...

 

[MelvinPierce]

I believe your dealer can do this, just not the user!

I am soooo glad my 3500 just displays the pressures, no warning. Put them where I want, no problem. However, I will not get a warning if pressure drops.

 

[EDankievitch]

Wait, they removed the light load heavy load selector switch? My 13 has the switch next to the engine break switch. I thought that it was now part of the touch screen display menu on trucks that have the larger U connect systems.

 

[TimothyLong]

Yes, the dealer can adjust those pressure settings to what ever you want. I asked the dealer to reset the rear pressure setting on my 2013 from 75 psi to 65 psi. They were able to do it no problem.

 

[Jim W]

Hey good luck on this I have been fighting this issues since Nov 07 on my 08 2500 Mega Cab. I run the rear tires at 70 PSI when towing with no issues what’s so ever. But I use to lower the rears tires especially in the winter to 45PSI light; would come on and the alarm would ding twice letting me know that I had low tire pressure. I went to three different dealers back when I was under warranty with no resolution to my TPMS problem. I gave up and now run the rear tires at 50 PSI works most of the time except in extreme cold weather for me; light and alarm will come on sometimes when the day time ambient temp is -0 or lower lately. The TPMS sensors in the tires have been rebuilt by the tire dealer when new tires were installed in 2011 on the truck.
Jim W.

 

[SBreaux]

The programming according to the dealer has changed for 2014. However seeing that the front can be at 60 with no issues there has got to be a way the rear programming can use the same set points as the front. 60 pounds is all the front calls for with the factory Firestones. This is also on my sticker in the door. I just wonder if the dealer has not figured out how to do it or it just can't be done. Makes no sense since rotating tires or buying new tires may not call for that high of a pressure. If anyone by chance has a 2014 or buys one and gets the programming changed I would appreciate a holler back. The book says 20% tire pressure difference is what we have to work with, the dealer says 8 pounds is all. I hope this can be worked out. Think I am going to call RAM today and see what customer support says.

Also wanted to let everyone know that one trick the dealer told me they use is to put all the wheel sensors in the spare and just air it up. Now I don't know if that's done programmable or other method but that trick did not work for me either.

 

[Cummins12V98]

Run your fronts at 75 and rears at 45 empty or you will have pre mature wear.

 

[sag2]

I have not seen the law on this but I'm going to make an assumption that it is illegal to set the pressure thresholds at anything other than what the tire label on the door says. In fact in California any repair or tire shop MUST by law inflate the tire to the placard pressures and record them on the repair order.
If the low pressure switch is gone I'm also going to assume the law changed this year with respect to truck tire pressure monitors.

From the 14 owner manual
The Tire Pressure Monitor System (TPMS) will warn the
driver of a low tire pressure based on the vehicle recommended
cold placard pressure.

 

[Cummins12V98]

I guess the tire weight/inflation charts mean nothing.

 

[Bob4x4]

I guess the tire weight/inflation charts mean nothing.

Not since Ford and firestone's ******* match

 

[TimothyLong]

Okay, for folks who want to run different size/load range tires from stock this is going to be a problem. I am running a a 285 load range D tire and the tire manufacturer specifies 65 psi as max inflation pressure. That's why I asked the dealer to change mine and they did. It seems as if we're not supposed to run custom wheels/tires anymore.

 

[Bob4x4]

A few years back CHP did a road side tire inspection sweep.They ticketed all the trucks they inspected with tires under spec-ie d rated when door sticker indicated e rating.This was in response to a high number of accidents with toy haulers from what I read

 

[sag2]

Most of this is from the few people who ignore the manufacturers information and then when they get into trouble they want to hold someone else responsible. I can't blame any company that makes it difficult to modify their product. Because in today's world nothing is your fault, so now everyone gets to pay the price.

 

[SBreaux]

Okay here is the story as I know it. I spent part of the afternoon reading part 49 of the CFR to see what I could understand on the TPMS rule. Seems the rule is TPMS must and only has to use the original maximum psi for the tire since the load for the vehicle is not known. Thats truly the long and short of it. The measurements only have to comply with the original set of tires that came on the vehicle first time purchase. So it looks like I will have to live with the 60 and 80 pound settings as thats what is on my truck today. Should I buy new tires supposily I am to purchase tires equal to or those that exceed my original tire size and rating. Thats how the DOT rule reads. Just thought I would pass this along. This applies to any vehicle 10k pounds and under.

 

[MelvinPierce]

Makes me glad I got a 3500, with a TPIS instead of a TPMS! Put the pressure wherever I want it!

 

[Kry226]

Makes me glad I got a 3500, with a TPIS instead of a TPMS! Put the pressure wherever I want it!

Yeah, I was just perusing the Ram website and in the detailed chart comparison of the 3500 models, I can see a "Delete Tire Pressure Monitoring" option. Is this what you did? Anyone else?

 

[MelvinPierce]

Yeah, I was just perusing the Ram website and in the detailed chart comparison of the 3500 models, I can see a "Delete Tire Pressure Monitoring" option. Is this what you did? Anyone else?

No. The 3500's have TPIS, NOT TPMS. I have a DRW, and sensors. I get a read out on the EVIC of what the pressure is in each of the 6 tires. That is ALL it does. Tell me what the pressures are. No warning if one goes low.

But, I can put whatever pressure I want in each tire, and it tells me on the dash what that pressure is. NO WARNING, NO LIGHT, etc.

Allows me to monitor the pressures, but does NOT keep sending warnings if I want to lower the pressures. ie, lowering the rear wheels pressure when I am solo, and upping it when I want to put a heavy load on.

 

[Kry226]

Thanks. After I posted my question, I realized it's just a standard feature and not an option, per se. Ram's site doesn't make it easy to figure things out sometimes.

 

[Jackedupsteve]

So I bought a 2014 and had the same issue when putting 35's on it. Checked forums w no luck. So I accessed tech connect via password and did some research. Found that the threshold for the tpms system is 64 psi when the placard reads 80 psi. This means that if u go below 65psi the light will come on. So w no help from the dealer of course because of new federal laws, I decided to pump up the rears like it said to 80 psi. Drove the truck about 1000 feet and the tpms light went out. At that point I lowered my tires to 67 psi. The light stayed out and I don't really care if I'm a couple psi over. Remember u must drive( at least I had to) the truck to get the pressures to change. 1000 ft or so. If u lower the pressure below 65 psi on an 80 psi placard u will have to start all over. Suggest standing back as much as possible when inflating tires w safety eyes and ears. Hope this helps the 2014 ram owners. Peace