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TPMS question (not beating dead horse)

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playbak

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Discussion starter · #1 ·
After reading the extensive thread on this subject I just wanted some clarification. I've read peoples posts on their experience with not having the TPM sensors and there doesn't seem to be one decisive explanation as to what the vehicle does.

Some say in chimes 4 times at start up, then a light stays on.
Others say it chimes every 10 minutes.
Some say the light goes out.

I'm leaning towards not spending an extra $200 when getting my wheels and living with the warning light (or whatever happens), depending on its annoyance.

I'm getting a 4x4 Sport, my guess is the digital display will not be as detailed as the limited.

Anyone running aftermarket or snow tires without TPM sensors please clarify for me exactly what the vehicle does and how annoying it is, and whether you have a limited, or sport.

Thanks in advance.
 
#2 · (Edited)
I am not sure there is a definite answer here since so many people had different results. the TPM in the EVIC should be the same regardless of limited/sport, but it may be year dependent?

2007 sport - no snow tires for us :) - but had to use the dreaded donut. The first time, it had low pressure when we removed it, so every startup, it gave us the warning chime and displayed the TPM section of the display - once you click the EVIC button it stops reminding you (until next restart). The second time (repair didn't take the first time) it was above minimum pressure and it did not give us the warning every startup. Don't know if that lasts or not since we only had the donut for a day each time, but that's our input...
 
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#5 ·
playbak said:
After reading the extensive thread on this subject I just wanted some clarification. I've read peoples posts on their experience with not having the TPM sensors and there doesn't seem to be one decisive explanation as to what the vehicle does.

Some say in chimes 4 times at start up, then a light stays on.
Others say it chimes every 10 minutes.
Some say the light goes out.

I'm leaning towards not spending an extra $200 when getting my wheels and living with the warning light (or whatever happens), depending on its annoyance.

I'm getting a 4x4 Sport, my guess is the digital display will not be as detailed as the limited.

Anyone running aftermarket or snow tires without TPM sensors please clarify for me exactly what the vehicle does and how annoying it is, and whether you have a limited, or sport.

Thanks in advance.
Click to expand...
I have a Limited, and I opted not to buy the sensors for my winter tires since my dealership was selling them at $75 apiece plus tax. When you start up the Jeep, it'll chime as many times as there are tire pressures that it can't read. The system is pretty glitchy, even with tires on that have no sensor, you'll often get a "reading" from those tires for some reason, which is why it may chime only 3 times instead of 4, if it detects one tire's pressure level.

It then chimes once every 10 minutes to let you know that you still don't have tires with sensors in them. ;) The odometer part of the display (right hand side) will brighten up to its highest setting and this:
Image
will start flashing on and off for about a minute, before the display dims back down again. All I know is that on a 10/15 minute drive to university for me, the screen will probably brighten twice in the whole trip, and the chime goes off at the 10 minute mark.

At this point in time I've completely tuned the system out, so if I get a flat when I have my summer tires on, I'll probably tune that out too. :p

Oh, and if you get the EVIC, when you start up the Jeep, it'll show your tire pressures on the left side of the screen to show that there's no readings, or that there's one or two there (instead of going to the default temperature/compass display when it normally starts up).
 
#6 ·
I bought the sensors with my wheels and tires from tirerack.com. They were $134 and required no computer reset or calibration. My question would be: Is tire pressure the only thing that these sensors read and effect? Do they have any effect on the stabilty or traction control? I just ask because I have always figured that everything would be tied together in the computer.
 
#7 ·
Wheezy;57194It then chimes once every 10 minutes to let you know that you still don't have tires with sensors in them. ;) The odometer part of the display (right hand side) will brighten up to its highest setting and this: [img said:
http://www.jeeppatriot.com/forum/images/icons/icon4.gif[/img] will start flashing on and off for about a minute, before the display dims back down again. All I know is that on a 10/15 minute drive to university for me, the screen will probably brighten twice in the whole trip, and the chime goes off at the 10 minute mark. .
Click to expand...
Just curious, if you hit your EVIC button to acknowledge the TPM warning, does it still come back and chime in 10minutes? Mine didn't, but it was only 1 tire...
 
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#8 ·
newjeepgirl said:
Just curious, if you hit your EVIC button to acknowledge the TPM warning, does it still come back and chime in 10minutes? Mine didn't, but it was only 1 tire...
Click to expand...
Yep, when you push the button you just change the screen, it still recognizes your tire "problems" and chimes after 10 minutes. It's pretty stupid that you can't disable this system, to be honest.
 
#11 ·
Did you know that these sensors have to be changed completely when the battery dies? Yeah, you can't just have the batteries changed in them, you have to drop $130 to $240. And it is recommended that you replace them at Tire change intervals. So tack on another $200 to your $400+ tire change. And also, my dealer told me that there are serial numbers on the sensors so not just any one will work with your car. What a bunch of bull.
 
#12 ·
stretch said:
Did you know that these sensors have to be changed completely when the battery dies?
Click to expand...
design wise, it makes sense. They're spinning around at high speeds for a very long time - imagine your flashlight battery case not coming unscrewed over that amount of time
 
#13 ·
I heard that the batteries are supposed to last about 8 years and that new sensors can be bought for about $35 each. I bought 4 steel wheels just for my winter tires and they don't have sensors. I have the EVIC and on startup I get 4 chimes and the EVIC displays 4 lines of dashes. I immediately press the EVIC button and the normal display of Temperature returns. My system never chimes again until the next startup. I put some black electrical tape on the dash to cover up the TPM light.
 
#14 ·
Mine is the same as wheezy, mine only chimes after 10 minutes after the initial chimes if the vehicle picks up one of the sensors on the stock wheels in my shed which is about 50 feet away. The vehicle will also pick up other compatible sensors in traffic or in a parking lot.
 
#15 ·
I don't have Evic. Mine chimes once on startup and then shows the tire pressure warning graphic for the rest of the trip. I bought a sensor and had the dealer program the computer to listen to it. It still doesn't work correctly. I just ignore it. It will be different with and without EVIC. It may also vary with year.

The system is designed to have the four wheels and tires on the ground when you bought the vehicle rotated in a four wheel rotation pattern. Anything else will cause TPMS problems.

If you buy four snow wheels and tires, you will need four new sensors and your dealer will need to introduce your vehicle's computer to the sensors and then do the same again when you switch back to your summer tires. Alternatively, you can move your sensors back and forth between the winter and summer wheels. You are supposed to replace the crush washer on the stem when you move the TPMS from one wheel to another.

I wish the car didn't have the system. But, too many people got in trouble because they didn't check their tire pressures. Oh well.
 
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#16 ·
RHill said:
I don't have Evic. Mine chimes once on startup and then shows the tire pressure warning graphic for the rest of the trip. I bought a sensor and had the dealer program the computer to listen to it. It still doesn't work correctly. I just ignore it. It will be different with and without EVIC. It may also vary with year.

The system is designed to have the four wheels and tires on the ground when you bought the vehicle rotated in a four wheel rotation pattern. Anything else will cause TPMS problems.

If you buy four snow wheels and tires, you will need four new sensors and your dealer will need to introduce your vehicle's computer to the sensors and then do the same again when you switch back to your summer tires. Alternatively, you can move your sensors back and forth between the winter and summer wheels. You are supposed to replace the crush washer on the stem when you move the TPMS from one wheel to another.

I wish the car didn't have the system. But, too many people got in trouble because they didn't check their tire pressures.
Click to expand...
Not so. I bought a second set of wheels and new sensors. I had a tire shop mount them up and the car never even gave me an error message. No programming, no screwing witht he computer at all.

However, If I can ever figure out a way to trick the system so I can get rid of the aluminum valve stems in favor of rubber or steel, I will. I think making the TPMS part of the valve stem is stupid design.
 
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#17 ·
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