TPM issue, help please

[blackoutF15]

Hi, I got a TPM warning this morning. So I tried to reset the sensors. Tired 3 times and it got stuck at 49% completion all 3 times. All tires seem to be inflated and fine. Is there anything I can do besides taking it to dealer? I have aftermarket 22" wheels if that matters. Never had an issue before. Thanks

[1norseman]

Originally Posted by blackoutF15

Hi, I got a TPM warning this morning. So I tried to reset the sensors. Tired 3 times and it got stuck at 49% completion all 3 times. All tires seem to be inflated and fine. Is there anything I can do besides taking it to dealer? I have aftermarket 22" wheels if that matters. Never had an issue before. Thanks

Just to eliminate one possible issue, but you might already know this...

How far did you drive? It takes my car 10-15 minutes of uninterrupted driving, before they complete the reset. If stop and go traffic, even longer.

[RED_Y_]

And you drove around after reset, right?

[blackoutF15]

Originally Posted by 1norseman

Just to eliminate one possible issue, but you might already know this...

How far did you drive? It takes my car 10-15 minutes of uninterrupted driving, before they complete the reset. If stop and go traffic, even longer.

I drove for awhile. Non stop in a section of the street where there's no traffic light making U turns. The % goes up until it hits 49% every time then it stops. After awhile the error message comes back. It's annoying.

[blackoutF15]

Originally Posted by RED_Y_

And you drove around after reset, right?

Yes I did

[RED_Y_]

How old are your sensors?

[blackoutF15]

Originally Posted by RED_Y_

How old are your sensors?

About A year. I got new ones when I got the aftermarket wheels

[blackoutF15]

Originally Posted by RED_Y_

How old are your sensors?

I'm starting to think maybe the sensors gone bad

[MH20jy]

Originally Posted by blackoutF15

I'm starting to think maybe the sensors gone bad

Did you have readings from all 4 sensors?

[blackoutF15]

Originally Posted by MH20jy

Did you have readings from all 4 sensors?

Yes. Before this morning I had readings on all 4. The warning says it's not able to detect. What are chances that all 4 failed the same time?

[MH20jy]

Originally Posted by blackoutF15

Yes. Before this morning I had readings on all 4. The warning says it's not able to detect. What are chances that all 4 failed the same time?

When reset TPMS, you need to keep driving without stop. Just start it and then drive on a highway for several minutes. It should go away. If not try ISTA to reset it.

[blackoutF15]

Originally Posted by MH20jy

When reset TPMS, you need to keep driving without stop. Just start it and then drive on a highway for several minutes. It should go away. If not try ISTA to reset it.

I tried many times, it gets stuck at 49% then warning is back on. What's ISTA reset?

[steve1221]

I'm getting this issue on my 2014 40d. Select reset whilst stationary and drive away, the reset %age counts up but fails. Sometimes this is after 20%, sometimes 29%.

Any hints where to start looking? Tyres are all correct pressure

Thanks

[RED_Y_]

Might be time for new TPMS sensors.

[steve1221]

Originally Posted by RED_Y_

Might be time for new TPMS sensors.

Thanks, found this thread as well that helped. Probably need to find someone to test the batteries

https://f15.bimmerpost.com/forums/sh...TPM+reset+fail