When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Read the manual to understand how the Fit TPMS works. If you don't have it, it should be available online for you to download. It takes a while for the system to figure out the tires are properly inflated. A pound difference should not activate the TPMS system unless a tire is low in pressure. Secondly, I don't trust the TPMS. I was running on a flat tire and the TPMS did not trigger.
Last edited by wasserball; Jul 27, 2019 at 05:25 PM.
On my original Firestones I'd get false TPMS readings, especially on long trips. In the 10k miles since I put the Michelins on, none. So TPMS goes both ways.
nothing on my door post (except what you said) -AND- if you look at the online manuals (mine never had the paper manuals), there aren't any exact numbers (but an awful lot of other tire pressure related stuff
This is from the 2018 manual I downloaded for my car. Essentially for the EX the front pressure is 33 PSI and the rear pressure is 32 PSI. I have an LX not an EX but I run 35 PSI all around because I find different front/back numbers to be confusing and 35 is nice and simple and easy for me to remember albeit a slightly harder ride.
I fill my LX to 35 psi on all 4, when cold. Of course my stick-type gauge will not read the same every time. It can go out to 34, then on the next check a minute later go out to 35. And I don't know how accurate it is, but I know that I get the same numbers on my OTHER stick (I have one that goes to 50 psi and one that goes to 100 psi. I got very even tire wear on my original Firestones. No difference between inside and outside treads. No difference from point to point on the circumference. No feathering or cupping was noticeable. The TPMS lets me know when the pressure has gone down to 32. Takes about 2 months. Maybe more. They lose air pretty evenly. However I've seen a 2 or 3 psi difference at different temperatures. On the side car that has the sun beating down on it, the tires feel a lot warmer when touched, and the psi can become 2 pounds higher than the other side. I've found that warmth from the sun has more of an effect on temperature than driving at 75 mph on the interstate for 2 hours, in 80 degree F weather!
My new Pirelli P4 Four Seasons Plus lose 3 pounds of pressure a bit faster than than the original Firestones did. After about 2 months instead of 3 months.
thanks
