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Discussion Starter · #1 ·
I have a set of autocross wheels without TMPS. I've been to two events now and have always been expecting a TPMS error to pop up at some point but have not seen anything at all. I'm not complaining, just wondering why I haven't seen it. Do TPMS errors trigger after a certain mileage or speed? Has anyone else run without it and avoided the error?
 

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That's certainly a new one. What does the display show when you switch to the pressure screen? Any numbers or just dashes? Do you get numbers with your normal wheels installed?

I believe TPMS only became standard in 2008. It was optional before that.
 

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I have a set of autocross wheels without TMPS. I've been to two events now and have always been expecting a TPMS error to pop up at some point but have not seen anything at all. I'm not complaining, just wondering why I haven't seen it. Do TPMS errors trigger after a certain mileage or speed? Has anyone else run without it and avoided the error?
Are these autox events or DE? I have found that with autox it does not normally indicate a failure at most events. However some events with longer courses and/or more runs have triggered a warning. I am not sure when the failure is triggered but I bet that you have to move a certain distance or a certain amount of continuous movement time before the error is triggered.

As you said, its a non-issue. But if you want to check, drive on your non-TPMS wheels for 5 miles or so at normal speeds. I bet you get the warning.
 

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Discussion Starter · #4 ·
Thanks guys. I was just curious why I didn't see it. I had prepared myself for a warning and was really surprised I never saw it. This was for autocross but yesterday was evo school so I drove quite a bit. I wonder if the counter gets reset whenever the car is shutoff.

I never switched to the display to see what it said during the event but shortly after leaving I would switch over to verify my street tires were picked up correctly.
 

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I have a 2007 Cayman S and no TPMS on my track wheels. Everytime I switch to the track wheels I get a TPMS warning, it might take 15 minutes before I see it. After shutting the car off, I will get a new warning, also with a similar time delay. As per a previous post there is no pressure indicated on the the screen after the ewarning has been posted. After the initial switch to track wheels, the pressure continues to show until I get the warning.
 

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Can you check the pressures when the new wheels are on? How long do you keep the AX wheels on? TPMS does remember last reading and will show that at first.

And of course, we have to ask - ARE YOU SURE?
 

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Discussion Starter · #7 ·
Tomasz said:
And of course, we have to ask - ARE YOU SURE?
Pretty sure. ;)

I have the wheels on all day and probably drive up to 4 miles without shutting the car off (4 long runs in a row). Sounds like the limit is more than that and I reset the timer when I shut it off. That's great but I still have the thought in the back of my head that some day I am going to ruin a run when an unexpected alarm pops up mid slalom. Even if I know it's low gas or TPMS error I still have to look to make sure it's not "NO OIL!"
 
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