Tire idiot light on!!!!

[Spank]

They tire shop is saying the cooper Stt pro has 10 ply sidewall and needs at least 45

Bah, they all say that. Discount says the same thing about my KO2s. I run them at 32 and my Jeep drives beautifully.

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[TimAugie]

I’m running 36# with aftermarket sensors on 315/70R17’s and all pressures are reading but idiot light is on, local shop scanned all the sensors and they are reading but idiot light is like the demon in the closet and won’t go out, they advised the sensors may not be playing nice with whatever they send the signal to, Taser is in the mail and when it comes in my thought is to turn it off and then back on and see if it resets and will also lower the alarm limits down

Any update on this? I have the same issue, sensors are reading correct psi but the idiot light is on. I’m thinking of getting a Tazer but I did pay for the TPMS sensors to be installed on my aftermarket wheels, and they are working, so it would be nice to keep it on. The Tazer completely disables the system. Any luck with using the Tazer to turn it off and then back on, with lower thresholds?

 

[GtX]

Any update on this? I have the same issue, sensors are reading correct psi but the idiot light is on. I’m thinking of getting a Tazer but I did pay for the TPMS sensors to be installed on my aftermarket wheels, and they are working, so it would be nice to keep it on. The Tazer completely disables the system. Any luck with using the Tazer to turn it off and then back on, with lower thresholds?

Tazer lets you adjust the threshold within the limits of the system.

 

[Odyssey USA]

Any update on this? I have the same issue, sensors are reading correct psi but the idiot light is on. I’m thinking of getting a Tazer but I did pay for the TPMS sensors to be installed on my aftermarket wheels, and they are working, so it would be nice to keep it on. The Tazer completely disables the system. Any luck with using the Tazer to turn it off and then back on, with lower thresholds?

If I recall correctly the system needs to see a certain amount of change and then you can back off a bit after the light goes off.

 

[TimAugie]

If I recall correctly the system needs to see a certain amount of change and then you can back off a bit after the light goes off.

I had them up to around 41psi with no luck, put them back to 36psi, list still won’t shut off. Will disconnecting the battery assist in any way or will it just kick back on?

 

[TimAugie]

Tazer lets you adjust the threshold within the limits of the system.

Correct, but my tires are reading within the limit. Check out the photo.

 

[WranglerMan]

I sold off my Tazer months ago and after replacing the TPMS sensors with a different set I have only had an occasional issue with the light going on, my guess is the position of the aftermarket sensors in my method wheels pushes the sensors out to far from the receivers and they lose their mind sometimes, TBH if I still had the Tazer I would just turn TPMS completely off and not worry about it.

 

[TimAugie]

I sold off my Tazer months ago and after replacing the TPMS sensors with a different set I have only had an occasional issue with the light going on, my guess is the position of the aftermarket sensors in my method wheels pushes the sensors out to far from the receivers and they lose their mind sometimes, TBH if I still had the Tazer I would just turn TPMS completely off and not worry about it.

I think that may be the best option. Also, I think you may be right that the wheels could be out far enough to cause an error (—19 offset). I’ve never seen any issues with it reading an accurate tire pressure though, it more just bothers me that I can’t figure out the issue why the dummy light is on.

 

[Odyssey USA]

I had them up to around 41psi with no luck, put them back to 36psi, list still won’t shut off. Will disconnecting the battery assist in any way or will it just kick back on?

I’m not sure. I’d be in the same boat it sounds like. Worst case, turn off TPMS I guess.

 

[TimAugie]

I’m not sure. I’d be in the same boat it sounds like. Worst case, turn off TPMS I guess.

Thanks. Just ordered the Tazer. Will try lowering the threshold and if that doesn’t help, so long TPMS.

 

[GtX]

Or ignore the light.

I have two other cars and the light is on in both because at least one sensor has a dead battery.

 

[TimAugie]

Just an update in case someone else had the same situation as me (TPMS working but idiot is on). My issue was determined to be caused by the fact that I’m not running a spare tire with my aftermarket wheel/tire setup. When you program the aftermarket ones, after scanning all 4, it asks to scan the spare. Being that the JL has a self learn system, when it doesn’t see the spare it throws on the idiot light. Dealership said there is no way to change the configuration to only look for the 4 tires, thus I either leave the system on and deal with the light or just use my Tazer and shut if off. Hope this helps others with the same issue.

 

[Goin2drt]

Just an update in case someone else had the same situation as me (TPMS working but idiot is on). My issue was determined to be caused by the fact that I’m not running a spare tire with my aftermarket wheel/tire setup. When you program the aftermarket ones, after scanning all 4, it asks to scan the spare. Being that the JL has a self learn system, when it doesn’t see the spare it throws on the idiot light. Dealership said there is no way to change the configuration to only look for the 4 tires, thus I either leave the system on and deal with the light or just use my Tazer and shut if off. Hope this helps others with the same issue.

This is absolutely false info and sad it came from a dealer. The spare has nothing to do with it. The spare does have a TPMS that is asleep as it is not spinning. Until it gets put in the rotation then the TPMS will pick it up. When you move the and are trying to reset your TPMS it is a good idea to leave the spare off, go drive around and get the sensors all oriented and reading. Then you can go put the spare back on. If you drive around without a spare it makes ZERO difference as the system doesn’t even recognize the spare as it is not rotating. The TPMS machine has an option when you are scanning TPMS for four or five but that is to just check them and has nothing to do with the light etc.

 

[TimAugie]

This is absolutely false info and sad it came from a dealer. The spare has nothing to do with it. The spare does have a TPMS that is asleep as it is not spinning. Until it gets put in the rotation then the TPMS will pick it up. When you move the and are trying to reset your TPMS it is a good idea to leave the spare off, go drive around and get the sensors all oriented and reading. Then you can go put the spare back on. If you drive around without a spare it makes ZERO difference as the system doesn’t even recognize the spare as it is not rotating. The TPMS machine has an option when you are scanning TPMS for four or five but that is to just check them and has nothing to do with the light etc.

So what do you suggest I do to correct the issue? All of the sensors still read just fine, I just can’t get that damn light to go off.

 

[Goin2drt]

So what do you suggest I do to correct the issue? All of the sensors still read just fine, I just can’t get that damn light to go off.

Well here is your situation and I have the same. The TPMS is not strong enough of a signal to turn the light off but it is capturing 'occasionally" the PSI. That is why the PSI is accurate but the system thinks your TPMS is bad because it isn't getting the signal on every tire rotation.

The only solution to this so far and it is hit or miss. The OEM TPMS sensors Schrader 20398 or (if you have a 2020 with Fill Alert then 29117) are your best bet. Any other brand is hit or miss. The problem is with Jeep and its receiver being too weak when you lift or put thicker ply tires on your Jeep. Obviously they won't fix the issue when you go away from stock so I am not hopeful it will even get resolved but it does seem they know there is an issue because we are not seeing the same problems with the 20 JL's only the 18 and 19's.

Of course also a programmer to turn it off will work as well.

Hope that helps.

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