I looked through previous threads and couldn't find anything, but has anybody had the system tell you that you have a flat tire when it isn't?
It has happened a couple of times and I get out and check the "runflats" (which seem to be known as "runcr@ps") and they have plenty of air in them. When restarted, the warning usually goes away. More of an annoyance than anything, but I was curious if this is common. I was thinking it might be a bad sensor in the valve stem. (It always says LFT Front is Flat)
thanks

 

This happened to me also. It would randomly throw the flat tire alert but the tire was not flat (I have non-RFs). I took it to the tire shop and we both thought it was the sensor, but it was a nail in the tire that was somehow affecting the sensor. When the tire was fixed the the sensor works fine now. I knew something was wrong because that same tire had a slooow leak. Tire repair was under warranty, so no sensor purchase was needed.

 

I have had consistent problems with my tire sensors, primarily the right front. I get "flat tire" warnings several times a week, then after a few minutes it changes back and reads the corect pressure. This morning I had three false "right rear low pressure" warnings, which also changed back to correct readings after a few minutes. Occasionally I will also get a "Service Tire Monitor" warning and the right front will show "XX" instead of the pressure.

I'm about due for service so I will have the dealer fix the problem, the third attempt.

 

thanks. I checked for nails, etc but found nothing. I will likely have to get new tires on it by spring so I figured that I would switch to non-runflats and get the sensor looked at then. Did you have any concerns about running without a spare and non-run flat tires? We get in to some pretty off the beaten path roads in NorCal.

 

When you check the tire w/ a guage, what is the tire pressure?
Is it low or are you at 30psi ?

 

30 psi on all four corners. The most variation I have found was 2lbs on my right rear after 250 miles of yanking and banking on backroads.

 

Nothing worse than an intermittent problem. I change out track tires on mine several time's a year, so sprung for a Bartec reset tool. Good idea, since all car's 08' and up have TMPS. My brother's 08' Cadillac CTS TMPS was acting up. The Bartec scan showed a bad sensor when the car was just a few month's old. Hopefully if that's your problem, it's stay's bad when in for dealer service.

 

Yes, this happened to me today, for the first time ever... in my bone stock 2006 coupe, original wheels / tires / sensors. (Sensors are over 6 years old mind you)

Driving along slowly in Long Island traffic, all of a sudden I get a "flat tire" warning, "left front", "maximum speed reduced to 55mph, etc". Car felt fine. I then checked the DIC and it showed that all four tires had correct air pressure. I continued driving, eventually getting up to highway speeds, car felt perfect, zero evidence of a tire with low or no air pressure. I was able to hit 70mph on the highway and cruise with no problem. Was just a false alarm.

Never had any issues with the TPM system before. Wondering now if, being that my sensors are over 6 years old, the sensor batteries are ready to throw in the towel. Tires are still in decent condition, probably about 50% tread left, would be a real pain to have to dismount and remount all four tires (and rebalance) just to change the TPMS. I guess I'd probably just mount new tires at that point and be done with it.

Or maybe the sensor batteries are fine and I just merely experienced a random, one-time little "glitch". Car has been perfect otherwise.

Anyway, just reporting it.

 

This would happen in my 06 at stoplights. I would come to a stop and the warning would come on. Once I started rolling it would shut off.

Checked the pressures and all was well. Got so tired of it I installed a new TPM in that wheel and never had the issue again.

 

Thanks

Interesting. Yeah, that certainly does sound like a bad sensor... and was.

My flat tire warning DID come on at a very slow speed, was barely moving... and then I soon started moving faster, the warning went away and I never saw the warning again. I then drove another 50 miles at assorted speeds, stoplights too etc, no issues. Maybe little by little it will start to act up at slow speeds / stoplights more and more... we'll see.

This is not a serious problem, unless of course the computer should continue to think that the car has a flat when it doesn't and limits your speed to 55mph. That would stink if you're on a long distance trip and now couldn't go over 55mph. But that hasn't seemed to have happened to anyone here, at least in this thread... good. So, fortunately this issue may just turn out to be an annoyance at best.

I need to research, I used to know but forget now, what is the "official" service life of a Corvette TPM sensor? I know that the batteries are not replaceable so after a certain amount of time you just toss `em and install new ones. So, what kind of time are people getting out of these sensors? 2005 and 2006 owners, have you had any TPMs go dead yet (battery failure) from age / use? I am hoping the official service life is like 10 years... I can live with that.

 

My right rear sensor gave me the old 'XX' when it triggered the tire monitor fault. When I took it to the dealer, it was reading pressure. But, the pressure didn't increase when I drove the 7 miles to the dealer. The other 3 sensors indicated increased pressures from heating up. The service manager told me the XX is a sign that the sensor stopped transmitting info. The fact that it wasn't showing the pressure increase indicated that the sensor was bad. Replaced and it has been fine since.

 

Please don't revive old threads.

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