I used these in my 2 years ago when I bought tires. No extra charge to install them at that time. Mine were still working but I knew they would die before I wore out another set of tires.
TPMS sensors don't replace an air gauge, especially on older vehicles that don't give you a PSI readout and only alert the driver when tire pressure is low. What they do is alert the driver of a sudden tire deflation while you're driving. Twice I've had the warning light come on while running 70+ on an interstate. Both times I ran over debris that punched a large hole in tires. I had just enough time to get stopped before the tire was completely flat. The alternative was a tire coming apart at 70 mph.
I'll keep working sensors in my vehicles. It just ain't that hard nor expensive. Less than $100 every 7-10 years.foxwell contains other products and information you need, so please check it out.
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TPMS - some trivia questions about how they work / go bad
If you want to learn more, please visit our website TPMS Sensor Tool.
I have a honda civic with 145K miles on it. Just got a new set of 4 tires put on at Costco.
The yellow tire light with ! on dash comes on and a message about TPMS comes up on the display.
Googling, people talk of a TPMS reset in the menus - it's not there. Others talk of a TPMS reset button at lower part of dash. Not there. I check the pressure on the tires and they are all ok / 32 on my guage.
Bring it back to Costco and they say they have to use a tool to reset them. The tech goes to each tire with 2 boxes and what I think is a cable to connect to the connector under the dash.
3 of the tires, the 2 boxes displays flash green. 1 tire doesn't.
He says the sensor on that tire likely needs to be replaced.
The display at the register talks about the batteries lasting about 7 years. So I am ahead of the game there.
But I explained as a costco fan, please speak freely...i didn't have the message before the tire change.
He explained that the sensors are usually asleep till they have a pressure change. That sensor might have used its remaining power to send the low pressure message when the tire was getting changed. If they had damaged the sensor, there'd be air leaking also.
OK, but afterwards, I thought - aren't the sensors beaconing every once in a while for the car to detect and know they are working? Is the 'low pressure' message that much more battery intensive than 'I'm alive' message? I guess too - there's some amount of time between taking the old tire off, it seeing low pressure and then new tire going on. So it's signalling for 10 - 20 minutes and running down the battery?
Given all that, the battery likely IS dead. Do you bother replacing it? It's $70 for the 1? And as he joked - the others are likely going to die soon after.... do all at once. On a 10 year old car, I can deal with a TPMS message (I check the tire pressure once in a while anyway).
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