TPMS "reset"
My 2008 Elise SC started showing a TPMS warning "LR Low" about six months ago. I double checked the tire pressure, but the warning remained. Then, in the past month, it started showing two more low pressure warnings. I tried increasing the pressure to about 32 psi -but still the warnings were displayed.
Logic and a bit of research indicated that this was not a problem with the central TPMS receiver unit. A possible explanation was that the batteries were failing in the wheel-mounted sensors (although I found one source that claimed a ten year life for the batteries). I looked at sourcing some replacement sensors...
As a last ditch attempt, I let almost all the air out of the tires that were generating warnings, and then pumped them back up to factory spec. And then, a miracle happened: the warnings ceased. And they remain absent one month later.
Has anybody else observed the TPMS sensors needing this kind of reset?
-CHris
Logic and a bit of research indicated that this was not a problem with the central TPMS receiver unit. A possible explanation was that the batteries were failing in the wheel-mounted sensors (although I found one source that claimed a ten year life for the batteries). I looked at sourcing some replacement sensors...
As a last ditch attempt, I let almost all the air out of the tires that were generating warnings, and then pumped them back up to factory spec. And then, a miracle happened: the warnings ceased. And they remain absent one month later.
Has anybody else observed the TPMS sensors needing this kind of reset?
-CHris
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Have you ever used any fix a flat tire sealant on that wheel?
Wish I read this before I ordered new TPMS sensors, I was having a LR error but every time I check the pressure it was 29psi. I released it down to 10psi last night and then promptly refilled it to 29psi right after, started the car and the light was off! Thanks for saving me a trip to the tire shop.
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184 Posts
Two months after "reset" feedback...
Glad it worked for you. And I can confirm two months after the "reset" that my TPMS continues to behave.
Glad it worked for you. And I can confirm two months after the "reset" that my TPMS continues to behave.
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365 Posts
reviving an old thread as i started having a TPMS issue where all 4 tires display at 0.
the draining the air trick and refilling them, does the car need to be on for this to take effect? i tried it with the car off with no difference.
the draining the air trick and refilling them, does the car need to be on for this to take effect? i tried it with the car off with no difference.
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