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Discussion Starter · #1 ·
2012 JK Unlimited Wrangler Rubicon.

We just finished up two weeks on Martha's Vineyard. We were on the beach everyday, aired down to 15 PSI. At the end of each day I brought the tires back up to about 30 psi for the short drive back to where we were staying.

The TPMS light was on all two weeks. Since I was about 10lbs under, I didn't think anything of it. Before we left to go home, I brought pressure back up to 37 psi. A week later the TPMS light is still on solid. I've checked the tires and they are at 37 psi cold.

The manual states that a solid light after one min flashing on every engine start signals a "malfunction".

Did something get damaged during the two week air down?
 

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Not sure if this is the problem, but check that 5th tire on the back. I had the same problem 3 weeks after I bought my Jeep. It kept telling me my tires were low. Even took it to a local dealership to look and they wanted to replace the whole damn system. I banged my head for days, and then looked at the spare. I check and sure enough it was at 29, so I aired it up to 36. No probs after that!
 

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If all five tires are at the correct pressure and it's still on, disconnect the battery for a minute and if it's still on when you re-connect, you have a bad sensor. My friend had the same problem in his JK and the battery deal fixed it. It reset the computer.
 

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Discussion Starter · #4 ·
2012 JK Unlimited Wrangler Rubicon.

We just finished up two weeks on Martha's Vineyard. We were on the beach everyday, aired down to 15 PSI. At the end of each day I brought the tires back up to about 30 psi for the short drive back to where we were staying.

The TPMS light was on all two weeks. Since I was about 10lbs under, I didn't think anything of it. Before we left to go home, I brought pressure back up to 37 psi. A week later the TPMS light is still on solid. I've checked the tires and they are at 37 psi cold.

The manual states that a solid light after one min flashing on every engine start signals a "malfunction".

Did something get damaged during the two week air down?

SOLVED.

I'm not exactly sure what did it but;

I checked the spare. It was at 41PSI. I lowered that to 40.0.

I again rechecked all others, they were still at 37.0.

I then added air to all other tires up to about 43, then bled then back down to 40.0.

All TPMS lights and buzzers are off now.

Was it the 3 psi difference? Could the high pressure filler I used at the beach air station have stuck a sensor in some way?
 
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