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Out of curiosity, the "change AC filter" message is based strictly on time/hours of operation, yes? Or does the car somehow monitor the restrictiveness of the cabin air filter?
It is based on how restrictive the filter is. In fact, this is one of the parameters you can customize with TechStream. You can set the "Clog" sensitivity to Normal, less sensitive to clog, or more sensitive to clog.
It is based on how restrictive the filter is. In fact, this is one of the parameters you can customize with TechStream. You can set the "Clog" sensitivity to Normal, less sensitive to clog, or more sensitive to clog.
This would not seem to make sense on my car, or the sensor or something in my car is defective. I replaced my filter, and maybe in a month it went off (first warning under my ownership, second filter). The previous new filter had been in the car for maybe 17 mos., i.e. the warning came on in 18 mos of my ownership. Not sure when the last reset was performed.
If it has a sensor, then why reset, it would indicate when a replacement is needed. Also, if the replace was tripped, the filter was not replaced, and the warning reset, it should simply go off again.....
If it has a sensor, then why reset, it would indicate when a replacement is needed. Also, if the replace was tripped, the filter was not replaced, and the warning reset, it should simply go off again.....
I suspect that the A/C filter alarm operates similarly as the TPWS (tire pressure warning system) alarm. In the case of the TPWS, an alarm is activated upon detection of low tire pressure (as measured by an increased rotation counts), and even if tire pressure is restored, a manual reset is required to clear the alarm.
I suspect that the A/C filter alarm operates similarly as the TPWS (tire pressure warning system) alarm. In the case of the TPWS, an alarm is activated upon detection of low tire pressure (as measured by an increased rotation counts), and even if tire pressure is restored, a manual reset is required to clear the alarm.
That's kind of what I was thinking.
Why did you delete your previous post about this? It was a great way of explaining this type of alarm and was perfect, I thought...
My previous post was a bit "preachy". I revised it to stay on topic - briefly and politely.
Ohh. I didn't get that impression at all... you're maybe being a little too critical of yourself I thought it was very well written and informative. Oh well...
07-02-18, 05:22 PM
cabin filter reset
I thought it was very well written and informative. Oh well...
