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Unread 02-27-2011, 07:56 AM   #1
09Jeep
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Odd- Temp light + Low Tire Press Light

Iíve come across an issue where sporadically my temp light and low tire pressure lights come on at the same time. They will both appear for 1-4 seconds then go away for several minutes before re-appearing. Iíve had all the required service from the dealership. And just completed, a few months ago, the complete 36K mile service where all the fluids are flushed/replaced. During our short winter here in Texas this would occur only when the heater was on. As long as I was willing to freeze on the way to work I didnít have to deal w/ the warning lights; however yesterday while the temp was in the 80s was the first time the lights came on w/ the a/c on. All the tires are fully aired up and all the fluids are topped off. I flipped the key on a couple of times to see if there was anything on the display that would appear and nothing came up. Ideas?

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Unread 02-27-2011, 10:59 AM   #2
RockyClymer
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First, Welcome to the forum!

Probably have to look at any codes that were generated and might need to reboot the ECM - If that fails might need a reflash at the dealer. The reboot is easy, just disconnect the battery for about 10 to 15 minutes and then reconnect.
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Unread 02-27-2011, 12:19 PM   #3
09Jeep
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Thanks I'll give that a shot!
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Unread 10-05-2013, 06:02 PM   #4
Eplatvoet
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Was this ever resolved?

I have the same thing happening occasionally.... It may be related to having the heater on? Anyone else have this happen? Any fixes? Weird...
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Unread 10-05-2013, 07:27 PM   #5
VEGASROBBI
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I have seen this on several 2008's and 9's. Check tire pressure. When aired up and on the highway tire pressure increases, especially at 80 mph in TX, I was just there.

I aired up in Vegas to 35 psi and by Fort Stockton I was at 41 psi. I find the TPMS and red hot dot illuminate accompanied by a ding.

As usual it's not 100% with the Chrysler can bus but a good place to start.
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Unread 11-06-2013, 06:05 PM   #6
Eplatvoet
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Okay, that could be it, it tend to overinflate a little because the dial on the compressor is very coarse and difficult to read properly... I will try that, thanks.
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Unread 11-07-2013, 11:16 AM   #7
crlickey
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My 08 wrangler does this too. Mine does it regardless of tire pressure and even when i have no sensors in my wheels. Sometimes it will go a month without doing it and sometimes it will do it 15 times within 5 minutes.....
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