Flat tire warning won't go away

cgmb16 · 10-31-2007, 04:15 PM

Yesterday was the first time we have had freezing temps so far this year (at least at my house), and I know that cold weather/air affects air pressure in tires. I got in, started the vehicle only to get a huge red tire ! symbol. I knew what it was and checked the pressure in all 4 tires. Everything seemed to be normal. I reset the system and 30 mins later the same thing happened. This went on all day long. On the way home from work, I finally got it to go away and this morning it was back on again. I have checked the air pressure 3 different times. All of the tires have normal pressure and none of the tires appear to be flat. I called the dealer and they said it may be a faulty sensor. Does anyone know of this being a problem? I am taking it in tomorrow morning.

speedgod · 10-31-2007, 04:25 PM

I had the same issue with cold weather. I had my car in at the dealer and told them about this with another problem it was in for. They found nothing wrong on the TPM's.
They said if it does it again to call and bring it in. Such a pain though as the weather has been nice it will not do it. Guess I wait for the colder temps to come back and keep fingers crossed.

SG

nmulax · 10-31-2007, 04:45 PM

have to ask, but you're sure you're resetting the system correctly.

2007_E93 · 10-31-2007, 05:14 PM

Quote:

Originally Posted by cgmb16

Yesterday was the first time we have had freezing temps so far this year (at least at my house), and I know that cold weather/air affects air pressure in tires. I got in, started the vehicle only to get a huge red tire ! symbol. I knew what it was and checked the pressure in all 4 tires. Everything seemed to be normal. I reset the system and 30 mins later the same thing happened. This went on all day long. On the way home from work, I finally got it to go away and this morning it was back on again. I have checked the air pressure 3 different times. All of the tires have normal pressure and none of the tires appear to be flat. I called the dealer and they said it may be a faulty sensor. Does anyone know of this being a problem? I am taking it in tomorrow morning.

what is you PSI reading? I had 30 psi and sensor said low tire pressure warning light. Then, I inflated to about 36-38 psi as per driver manual's recs for driving over 100 mph. I dont always drive over 100 so I split the difference between the manuals recs for under 100 (~32-35) and over 100 (~38-40). Mine went away after I did that and reset it. Hope this helps.

Deveray · 10-31-2007, 07:07 PM

I got the same warning on the first cold morning too. My pressures were about 28psi all round so I put them all up to 33 and it was fine. I guess there are 2 possible causes of your problem a) you pumped the tires up fine and there is a faulty pressure sensor b) your tire gauge is faulty and the tires are at a lower pressure than you think they are, and the car's pressure sensor is correct

cgmb16 · 10-31-2007, 10:46 PM

Quote:

Originally Posted by nmulax

have to ask, but you're sure you're resetting the system correctly.

Yeah....I assume that I am because when I do it, it shows a clock symbol moving....then all the lights go away. Then about 10-15 minutes later it pops back on.

As for the other post about checking the pressure. I checked the pressure with three different gauges. They all read the same thing. The pressure that was listed on the door is what the gauges read. That is why I think it could be a bad sensor or something.

trick50 · 10-31-2007, 11:24 PM

Quote:

Originally Posted by cgmb16

Yesterday was the first time we have had freezing temps so far this year (at least at my house), and I know that cold weather/air affects air pressure in tires. I got in, started the vehicle only to get a huge red tire ! symbol. I knew what it was and checked the pressure in all 4 tires. Everything seemed to be normal. I reset the system and 30 mins later the same thing happened. This went on all day long. On the way home from work, I finally got it to go away and this morning it was back on again. I have checked the air pressure 3 different times. All of the tires have normal pressure and none of the tires appear to be flat. I called the dealer and they said it may be a faulty sensor. Does anyone know of this being a problem? I am taking it in tomorrow morning.

my car did that when the rear tire had a slight leak...everytime i checked the pressure it was at 36 so I kept resetting and ignoring...I gave it a few days checked the rpressure and it was so low the guage couldn't read it....now I fill it every morning while i am waiting for my new wheels and rubber.

ZBMW · 11-01-2007, 09:12 AM

Having had this problem every Fall with my 350Z I wasn't surprised to get a low pressure signal recently. Filled them all to factory spec (one was down to 28.5) and did the reset thing. It didn't react the way the manual said it would so I tried holding it longer. Finally decided to ignore it and take it to the dealer when I got a chance.I drove about 15 miles, the last 5 at freeway speeds and the warning disappeared.
Hope this helps.

My1stbimmer · 11-01-2007, 09:15 AM

Had the same problem with front driver side front tire for about a week. reset it checked it filled it and so on one day I filled all four tires to Recommened tire pressure and it stopped haven't had it since then.

clc5174 · 11-01-2007, 11:40 AM

Do a search. I recall seeing information (here or on bimmerfest.com) about a service bulletin regarding TPM. I think it's a software fix. Have also seen a thread where the root cause was a bad antenna?

cgmb16 · 11-01-2007, 03:25 PM

Quote:

Originally Posted by clc5174

Do a search. I recall seeing information (here or on bimmerfest.com) about a service bulletin regarding TPM. I think it's a software fix. Have also seen a thread where the root cause was a bad antenna?

I searched for a good 30-40 mins. All I found was people wanting to know the difference between the FTM and the TPMS. I just got a call from the dealer. They reset the system with a computer in the shop.

He said that the way the manual says to reset doesn't work right all the time. All I know is, I hope it is fixed and doesn't happen again!

Thanks for everyones input!

clc5174 · 11-02-2007, 10:22 AM

Quote:

Originally Posted by cgmb16

I searched for a good 30-40 mins. All I found was people wanting to know the difference between the FTM and the TPMS. I just got a call from the dealer. They reset the system with a computer in the shop.

He said that the way the manual says to reset doesn't work right all the time. All I know is, I hope it is fixed and doesn't happen again!

Thanks for everyones input!

Found a few threads that might provide more info/background. Sorry I didn't have time to look before. Hope your problem's solved.

http://www.bimmerfest.com/forums/sho...d.php?t=235890
http://www.bimmerfest.com/forums/sho...d.php?t=231147

Senres · 11-02-2007, 05:24 PM

Quote:

Originally Posted by clc5174

Do a search. I recall seeing information (here or on bimmerfest.com) about a service bulletin regarding TPM. I think it's a software fix.

Ding ding ding! We have a winner!

This happened recently to my E90 328i. The flat tire warning poppped up but the pressure on all four tires was fine. I took it to the dealer and they checked the tire pressure and tried resetting the system. Turns out there was a service bulletin about it and it just required a software upgrade.

eppisgood · 03-19-2012, 12:39 PM

Had the same issue on Saturday when we had a cold storm come through, red alert that all 4 wheels were low pressure. Checked it and had 30-31 PSI readings on all 4 wheels, put a little air into it to bring it up to 33 PSI. But the thing is on the TPM screen RESET is greyed out/can't select it. Perhaps this is the service bulletin that I couldn't find using the search feature.

jacobsed · 10-09-2012, 05:17 PM

My 2006 330xi is giving me warnings with the temp fluctuations here in Michigan. Its near freezing in the morning and 60's in the day. All my tires are fine.

Ryballz · 10-09-2012, 08:48 PM

It's going off in the morning because the pressure is low. You're supposed to check/fill them while cold. Before you get in, check them and fill to required pressure on the door sticker.

jacobsed · 10-09-2012, 08:57 PM

Quote:

Originally Posted by Ryballz

It's going off in the morning because the pressure is low. You're supposed to check/fill them while cold. Before you get in, check them and fill to required pressure on the door sticker.

Yes I am aware of all that. Turns out my driver's side rear tire was flat. The inside edge started to shred. Funny thing is the car felt and drove fine...haha. The runflat is pretty amazing. I'm currently shopping for non RFT tires. Seriously considering the Hankook V12's.

10-31-2007, 04:15 PM	#1
cgmb16 Private 5 Rep 80 Posts Drives: 2007 E92 328i Join Date: Sep 2007 Location: Birmingham, AL iTrader: (0)	Flat tire warning won't go away Yesterday was the first time we have had freezing temps so far this year (at least at my house), and I know that cold weather/air affects air pressure in tires. I got in, started the vehicle only to get a huge red tire ! symbol. I knew what it was and checked the pressure in all 4 tires. Everything seemed to be normal. I reset the system and 30 mins later the same thing happened. This went on all day long. On the way home from work, I finally got it to go away and this morning it was back on again. I have checked the air pressure 3 different times. All of the tires have normal pressure and none of the tires appear to be flat. I called the dealer and they said it may be a faulty sensor. Does anyone know of this being a problem? I am taking it in tomorrow morning. __________________ Current Ride: 2007 E92 328i - Jet Black/Cream Beige - For Sale! http://www.e90post.com/forums/showthread.php?t=151760
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10-31-2007, 04:25 PM	#2
speedgod First Lieutenant 14 Rep 326 Posts Drives: 335 Join Date: Feb 2007 Location: Salt Lake City iTrader: (1)	I had the same issue with cold weather. I had my car in at the dealer and told them about this with another problem it was in for. They found nothing wrong on the TPM's. They said if it does it again to call and bring it in. Such a pain though as the weather has been nice it will not do it. Guess I wait for the colder temps to come back and keep fingers crossed. SG __________________ The will to do - The soul to dare -Taylor Knox
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10-31-2007, 04:45 PM	#3
nmulax Brigadier General 379 Rep 4,320 Posts Drives: '07 Z4 M Coupe Join Date: May 2006 Location: Metro-Detroit iTrader: (5) Garage List 2007 Z4M Coupé [7.66]	have to ask, but you're sure you're resetting the system correctly. __________________
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10-31-2007, 07:07 PM	#5
Deveray Private First Class 10 Rep 141 Posts Drives: 2010 535i X-Drive Touring Join Date: Dec 2006 Location: Colorado iTrader: (0)	I got the same warning on the first cold morning too. My pressures were about 28psi all round so I put them all up to 33 and it was fine. I guess there are 2 possible causes of your problem a) you pumped the tires up fine and there is a faulty pressure sensor b) your tire gauge is faulty and the tires are at a lower pressure than you think they are, and the car's pressure sensor is correct
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11-01-2007, 09:12 AM	#8
ZBMW Black Forest Bimmerphile 2 Rep 137 Posts Drives: 2007 335i Join Date: Jan 2007 Location: Colorado iTrader: (1)	Having had this problem every Fall with my 350Z I wasn't surprised to get a low pressure signal recently. Filled them all to factory spec (one was down to 28.5) and did the reset thing. It didn't react the way the manual said it would so I tried holding it longer. Finally decided to ignore it and take it to the dealer when I got a chance.I drove about 15 miles, the last 5 at freeway speeds and the warning disappeared. Hope this helps.
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11-01-2007, 09:15 AM	#9
My1stbimmer Private First Class 9 Rep 130 Posts Drives: 335i e90 Sapphire Blk loaded Join Date: Aug 2007 Location: Wilmington, DE iTrader: (1)	Had the same problem with front driver side front tire for about a week. reset it checked it filled it and so on one day I filled all four tires to Recommened tire pressure and it stopped haven't had it since then.
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11-01-2007, 11:40 AM	#10
clc5174 Private 3 Rep 86 Posts Drives: 2007 328i 'vert Join Date: Mar 2007 Location: SF Bay Area iTrader: (0)	Do a search. I recall seeing information (here or on bimmerfest.com) about a service bulletin regarding TPM. I think it's a software fix. Have also seen a thread where the root cause was a bad antenna?
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03-19-2012, 12:39 PM	#14
eppisgood Private First Class 14 Rep 162 Posts Drives: 2008 e90 335i Join Date: Nov 2011 Location: Orange County, CA iTrader: (0)	Had the same issue on Saturday when we had a cold storm come through, red alert that all 4 wheels were low pressure. Checked it and had 30-31 PSI readings on all 4 wheels, put a little air into it to bring it up to 33 PSI. But the thing is on the TPM screen RESET is greyed out/can't select it. Perhaps this is the service bulletin that I couldn't find using the search feature. __________________ 2018 440i GC
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10-09-2012, 05:17 PM	#15
jacobsed Lieutenant 23 Rep 463 Posts Drives: 2006 330xi Join Date: Feb 2012 Location: United States iTrader: (2)	My 2006 330xi is giving me warnings with the temp fluctuations here in Michigan. Its near freezing in the morning and 60's in the day. All my tires are fine.
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10-09-2012, 08:48 PM	#16
Ryballz Private First Class 1 Rep 125 Posts Drives: 335d Join Date: Feb 2012 Location: Colorado iTrader: (1)	It's going off in the morning because the pressure is low. You're supposed to check/fill them while cold. Before you get in, check them and fill to required pressure on the door sticker.
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