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How accurate is the tire monitoring system?
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07-22-2010, 11:51 AM | #1 |
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How accurate is the tire monitoring system?
Well when I got in my car today I started it, and the navigation screen said that my left rear tire had low pressure. I got out and tried to check to see if it had any air and it seemed okay just like the rest of my other tires. Is the tire monitoring system pretty accurate or should I just ignore it?
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07-22-2010, 11:54 AM | #2 |
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Did you actually check it with a Tire pressure monitor or just look at the tire?? Cause sometimes it may look okay but actually is low in pressure! I would check it just in-case! Those monitoring systems are usually pretty accurate!
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07-22-2010, 11:59 AM | #3 |
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No I just went out and pressed against the tires to see if there was air in it and it seemed okay to me, but the onboard tire monitor system said that it had low pressure.
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07-22-2010, 12:05 PM | #5 |
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It's a lot more accurate than pressing your finger.
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07-22-2010, 12:05 PM | #6 |
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Thank you for the feedback guys, I guess I'm off to discount tires.
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07-22-2010, 12:31 PM | #8 |
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07-22-2010, 01:27 PM | #9 |
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You def need a pressure guage to check your tires like others have said. I keep one in my center console. Also know that electrical interferance can sometimes trip your TPMS, so if you check your pressure and it is good, just reset the system. These false alarms are rare but I have had a couple in the past year.
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07-23-2010, 02:31 AM | #10 |
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07-23-2010, 03:08 AM | #11 | |
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Quote:
Runflat tires do not ever seem to be flat by looking at them...
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07-23-2010, 08:11 AM | #13 |
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I'm not too impressed with my sensors. After having the car for three weeks, I ran over some debris on the highway. The front tires were replaced with non-run flats. Front tire immediately blew out. After limping to a tire shop, we discovered the rear run flat was also blown when i told them to check all 4 tires. Tire pressure system said nothing. I almost replaced just the front and drove off with a blown rear.
It only went off AFTER I had 4 new tires on the car and drive for an additional 10 miles. Wouldn't you expect it to detect the complete loss of pressure immediately? When we took the wheels off, there were no sensors in the wheels. How does the system work?
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07-23-2010, 08:12 AM | #14 |
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I thought that they only monitor a sudden pressure drop.
Anyway I had a runflat wear out after only 3,000 miles because it was at 30psi rather than 40psi. I now own the $5 pressure gauge and check the pressure every couple of weeks. |
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07-23-2010, 09:33 AM | #15 |
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Nope, it monitors any pressure drop below a threshold. I usually reset the TPM at 44psi, and get alerts if tire pressure drops below 35psi.
Looking at your signature, it could differ between markets - my car is a 2009 with iDrive.
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Last edited by skier; 07-23-2010 at 09:36 AM.. Reason: additional comments |
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07-23-2010, 09:37 AM | #16 |
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One doesn't kick tires anymore, get a gauge as others suggested.
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