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Old 05-20-2013, 12:49 PM   #1
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10A JKUR Tire Pressure

I'm running stock rims/tires on a 10A JKUR. Inside the door, it says tires should be inflated to 43PSI all around. I keep reading where people are saying to run tires much lower than this. What pressure "should" i go with, and why?

thanks for the feedback

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Old 05-20-2013, 12:55 PM   #2
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Quote:
Originally Posted by J33P4M3 View Post
I'm running stock rims/tires on a 10A JKUR. Inside the door, it says tires should be inflated to 43PSI all around. I keep reading where people are saying to run tires much lower than this. What pressure "should" i go with, and why?

thanks for the feedback
The 43psi is the max pressure they should be inflated to cold I believe. But all my tires I have ever had that are stock sizes I've run 32psi. Gives even ware an a solid ride an feel.

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Old 05-20-2013, 01:23 PM   #3
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My 10A JKUR came from factory with 47 psi (!) on all four tires.

Is the psi too high? And if I lower the psi, do I need to reset the TPMS myself or by the dealer?

Thanks,
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Old 05-20-2013, 01:41 PM   #4
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my '13 JKUR came from factory/dealer at 40psi cold. I was told that was a bit high.
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Old 05-20-2013, 01:44 PM   #5
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Im not too sure if its the same (it should be) but when i had tpms and when i air down to go wheeling, the low tire pressure light would light up and the DIC would say "inflate to 37 psi". Try letting some air out and see what the dash says.
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Old 05-20-2013, 03:55 PM   #6
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yeah mine came in with varying pressures in all 4 tires from the factory, but they're all at 43psi now. I didnt realize that was a "max" pressure and not an "optimal" pressure. Seems to be varying thoughts on the best pressure to run in these tires.
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Old 05-20-2013, 04:32 PM   #7
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Mine came from the factory with all four tires at 47 PSI, and it was quite a wild ride on the drive home.

I dropped them all to 34 - 35 and it drives great. Many people drop to 28 - 30, but I find 34 - 35 to be good for me.
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Old 05-21-2013, 01:54 PM   #8
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Mine came from the factory with all four tires at 47 PSI, and it was quite a wild ride on the drive home.

I dropped them all to 34 - 35 and it drives great. Many people drop to 28 - 30, but I find 34 - 35 to be good for me.
Thanks, mine was similar with 47 psi from factory. When your dropped yours to 34 - 35, did it trigger any TPMS warnings?
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Old 05-21-2013, 02:01 PM   #9
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Thanks, mine was similar with 47 psi from factory. When your dropped yours to 34 - 35, did it trigger any TPMS warnings?
It should not trigger any tpms warnings. I think factory is set for warning at 32? I now have mine turned off (thanks AEV pro cal)
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Old 05-21-2013, 02:02 PM   #10
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Originally Posted by Aeschylus View Post
Mine came from the factory with all four tires at 47 PSI, and it was quite a wild ride on the drive home.

I dropped them all to 34 - 35 and it drives great. Many people drop to 28 - 30, but I find 34 - 35 to be good for me.
I don't have the KM2's anymore but it was that same way for me too. Couldn't believe the pressure was so high from the factory. It was like I had smooth round rocks for tires! Just awful.

When you drop the pressure down to in the thirties it will trip the tpm sensor and you'll get the freak out message on your dash. Mine tells me it wants the pressure at at least 43psi. I'm running 35psi on my Duratracs. For now, I just ignore it but eventually I'll decide what to do to fix it. Flashcal most likely.
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Old 05-21-2013, 02:50 PM   #11
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It should not trigger any tpms warnings. I think factory is set for warning at 32? I now have mine turned off (thanks AEV pro cal)
Lowering mine to 35 does trigger a TPMS alert. The system actually informs me to fill them to 43. I hate the idea of always having a low pressure light lit now. Can I have the TPMS adjusted to monitor 35 as the new set point w/out having to spend $159 on a Pro Cal? Anyone with one near Chattanooga? I'll buy you a beer
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Old 05-21-2013, 03:01 PM   #12
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I see you are new so here is a tip that might help you in the future. I've been on online forums for years and years and so I'd like to pass this along. When you are in a thread like this, be sure to read all the responses for what others have done. Many times, people will answer your questions before you even ask! If you come across something you aren't familiar with, a term, brand etc, google it for immediate insight. Chances are, if you are talking about it now, it's been talked about before elsewhere. I really only say this to help you. It can be annoying to wait around for responses online when in fact they are already there. Perhaps its my ADD kicking in though, I just don't like to wait!

It's a good way to to find extra info, also some threads are just more informative than others so it's good to do some digging sometimes.

I mentioned I'm likely going to use Flashcal and another member in here mentioned he used AVE's Procal to fix this issue. They allow you to adjust many factory set parameters including the tpms.
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Old 05-21-2013, 04:29 PM   #13
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PROCAL is vehicle specific. You have to reset the vehicle back to the stock setting before you can use the PROCAL for another Jeep. To change the TPMS setting you might ask the dealer if their tech could do that with their equipment. I bought the PROCAL and reset mine to 20 psi for the TPMS as well as for the oversize tires I put on. Also I will need it anyway to recalibrate for a gear ratio change should I install new 4.56's and a locker down the road. Before I reprogrammed the TPMS light came on around 34 psi.
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Old 05-21-2013, 04:42 PM   #14
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35 lbs.

hi, came with 35 lbs. so I keep @35 lbs. if it goes to 30 lbs the tpms
comes on great jeep, 1 year and no prblems! what does consumer report know...not much.. no it's not made by toyota!!
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Old 05-21-2013, 04:49 PM   #15
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As others have said, dropping to the mid 30s will trigger TMPS warning. It is only mildly annoying - the EVIC display just defaults to the warning screen every time you crank the truck and the yellow light stays illuminated on the instrument cluster.

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