TPMS Question
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Cruiser
Joined: Aug 2019
Posts: 220
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From: Philippines
TPMS Question
After my bnew FLHXS underwent ceramic coating, the TPMS systems issues warning of under inflation of the rear tire is detected. I added air up to 40psi as recommended by H-D and the readings show that it has been reached. But the TPMS warning does not go off. What could have possibly gone wrong?
Seasoned HDF Member
Joined: Jan 2007
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From: anacoco, la
did you ride the bike at all? was the 40lbs as indicated by a tire pressure gauge or the tpms system itself? the tpms sensors will go into 'park' mode after not moving for a while and will only update once every 4 hrs. i've heard that you can 'force' an update by relieving some air pressure out of the tire and then filling it fully up again. i think it has to be something like a 5 lb variance. or you can just ride around the block.
Thread Starter
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Cruiser
Joined: Aug 2019
Posts: 220
Likes: 216
From: Philippines
did you ride the bike at all? was the 40lbs as indicated by a tire pressure gauge or the tpms system itself? the tpms sensors will go into 'park' mode after not moving for a while and will only update once every 4 hrs. i've heard that you can 'force' an update by relieving some air pressure out of the tire and then filling it fully up again. i think it has to be something like a 5 lb variance. or you can just ride around the block.
After getting warning, rode it about 5 miles to gas station. Filled up rear up to 40psi and front 36psi. Still TPMS remained on. Rode for another 50miles and still TPMS remains lit up.
Thread Starter
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Cruiser
Joined: Aug 2019
Posts: 220
Likes: 216
From: Philippines
What I find odd is that when I filled up the tire, the readings for both indicated the right psi but the warning light remains on even after 50 miles of riding and still warns of under inflation of the rear tire when ignition is switched on. In other words, the sensor senses the pressure accurately yet issues a warning.
1. Can application of ceramic coating on the rims play a role on this warning?
2. How do I reset the TPMS?
1. Can application of ceramic coating on the rims play a role on this warning?
2. How do I reset the TPMS?
Seasoned HDF Member
Joined: Jan 2007
Posts: 5,565
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From: Virginia
After my bnew FLHXS underwent ceramic coating, the TPMS systems issues warning of under inflation of the rear tire is detected. I added air up to 40psi as recommended by H-D and the readings show that it has been reached. But the TPMS warning does not go off. What could have possibly gone wrong?
Stellar HDF Member
Joined: Mar 2007
Posts: 3,176
Likes: 683
From: Forest Hill, Md
OP said Ceramic coating not powder, bike got waxed. No idea why that would do anything to the tpms though
Seasoned HDF Member
Joined: Aug 2013
Posts: 6,073
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From: Somewhere on the Bourbon trail
You got a new bike, so it's not the TPMS battery, and they are inside the tire so not the ceramic coating. Did you use an accurate air pressure gauge when you filled the fires? The TPMS lags a bit when sending the info out, but that's not your issue. Probably another ride to the dealer is my guess.
BTW, good you got the ceramic coating. If I remember correctly some of those roads aren't quite as paved as the main cities.
BTW, good you got the ceramic coating. If I remember correctly some of those roads aren't quite as paved as the main cities.
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Thread Starter
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Cruiser
Joined: Aug 2019
Posts: 220
Likes: 216
From: Philippines
You got a new bike, so it's not the TPMS battery, and they are inside the tire so not the ceramic coating. Did you use an accurate air pressure gauge when you filled the fires? The TPMS lags a bit when sending the info out, but that's not your issue. Probably another ride to the dealer is my guess.
BTW, good you got the ceramic coating. If I remember correctly some of those roads aren't quite as paved as the main cities.
BTW, good you got the ceramic coating. If I remember correctly some of those roads aren't quite as paved as the main cities.
You seem to know our roads here in the Philippines. Do pm me if youre in town. Perhaps we can arrange a ride. Cheers !
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Seasoned HDF Member
Joined: Jan 2007
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From: anacoco, la
the only other suggestion i have, above what others have said, is to check your pressure using a second gauge to see how the reading compare with 2 separate gauges.
