Hi guys,

I recently switched back to my iforge rims without tpms inside, however the tpms warning light doesn't come up. I am actually pretty surprised and happy that is no warning lights. But I am also worried that Is there something wrong with the warning system? Anyone experience this before? Please advice.

 

Where are your TPMS from your old wheels? Still installed on your old wheels sitting in your garage? Reason i ask is this happened to me too. If your TPMS sensors are still installed on your older wheels with the tires installed, your car is still communicating with those sensors. The sensors work for about 15 miles radius. My wheels were in my garage, but i could drive to work (10 miles) and the lights would not come up. When i drove further, the light would turn on since i was too far from the the sensors. It would turn off when i got closer to the sensors. I feel like this may be your problem.

 

Yep.....just give it time.......dashboard will light up eventually

Also, i don't think what sleekbrian said is completely accurate......I don't think they have a 15 mile radius in terms of how far they transmit.....I think it's just that the system doesn't *continuously* check for the sensors, which is why it could be ok if original sensors are close by but not 20 minutes later. I can't imagine the sensors themselves having that far of a range

 

yah, I lol'd at that...

Every TPMS system is a little different, but, if you aren't going far and the system doesn't drive enough miles, it may not check for them, or if it does, it may ignore the first missing request and when they are close by in the garage later, it resets the system and tells it they are close...

 

OK guys, I have been reading this kind of posts regarding sensors away from car (in the garage perhaps) with no warning lights at all on dashboard.
I want to use my reasoning/common sense here but I probably need some help trying to understand this.

If this were to be the case in which the sensors can be in the garage with tires and one can drive a few miles aways from these sensors and no lights will go off, can anybody explain why can't we just have these sensors programmed to our cars but just keep them in the glove compartment or somewhere else in the car so the car can always read them and limit the cances of geting them damage in a tire blow out/hitting a curve. Or even better, for those guys/gals that buy after market wheels but sensors don't fit because of the angle, can they just keep them somewhere in the car and don't worry about any warning lights?

I think it is a valid question that can solve some of your theories.

 

yah they are in my another set of wheels and in my garage.
I actually got this set with tpms and my oem set with tpms as well, so total two sets of tpms...does that give me the double range (30 miles) LOL...JK haha

 

+1 on that...really curious too!

 

Actually, you can do that.

The only problem is that you will need some sort of container that you can pressurize so that the sensors see proper air pressure. The entire sensor can be inside it, they don't even need to be mounted, whatsoever, but, again, the container will need to be pressurized.

The easiest way to build something like this is to take 4" PVC pipe, large enough to fit the sensor, so, only 4" or so long really. Add an end cap to one end, add a screw close fitting on the other end. On the end with the cap, drill a hole for a valve stem (.453" diameter) and install one of the sensors in this hole, or, just a regular rubber valve stem. Drop the sensors in the pipe, close the one end with the screw down cap and fill the pipe to 35 or 40 psi, the same or a little more than the door placard on your car says...

Throw it in the glove box or trunk and you shouldn't have any issues with warning lights...

You also won't know when a tire is low, aside from the normal, air pressure gauge, but, whatever... You could also just install the TPMS sensors in the tires and do it the right way too!

 

lol i guess im wrong with my proposed idea. I saw someone else have the exact experience as me and they also thought it was due to the distance, so i adhered to that thought. And no you wouldn't get double the range cause your car is initialized to one set at a time :P Im curious about the real reason this happens now...

 

I just told you the real reason in my first post in this thread.

The real reason it happens is that your car looks for the sensors every so often. If it sees them without too much break between seeing them, then they assume nothing is wrong. They are wireless sensors, the computer doesn't expect to get a good read every single time it looks for them, so, if it looks while you are away from the wheels, it doesn't throw a fault right away, but if it looks too many times without seeing them, then it does throw a fault. Of course, parking in your garage gives the computer what it is looking for, thus resetting the count on number of faults...

 

Instead of going through all this trouble, can we just put three inside the spare and just keep one in place? Will that work the same?
I know what part of your answer might be. No, I will remember my TPMS are in there and will call AAA in case I get a flat (I won't use my spare).

 

yup,that's true-i experienced it also and until now

 

Sure, you could, but, tell ya what, when you absolutely need to get somewhere and the spare is just sitting there not able to be used, you will be thinking long and hard about how expensive the sensors are versus how badly you need to get where you are going quickly... Trust me, its life - it always happens at the most inconvenient times... besides, we're talking $15 worth of PVC and 15-20 minutes absolute tops...

 

Here you go....https://www.clublexus.com/forums/is-...pipe-bomb.html

 

Thanks for the link... seems like I'm not the only one that has come up with that!