Low Tire pressure warning light HELP!

[M35Sport07]

Warning has been on ever since i took a road trip down to So Cal. I thought it would disappear buts been almost a week. Checked the air pressure with a gauge and read 34-35psi. What else can be the issue? It is driving me insane having that blinker on.

[The00Dustin]

Assuming the tires weren't rotated right before that trip, I guess you most likely have a bad TPMS sensor (most likely one tire doesn't show a reading, telling you which sensor if it's consistent). I had the light come on a couple times last winter, but only when it was below 10°F. It wouldn't come back on when I started the car back up in the afternoon and it was a bit warmer (20°F?). Several people told me it wal probably failing due to age (may have a bad battery in it, but I don't know if they have batteries or if said batteries can be changed). Obviously you don't have something freezing in yours, and it is more persistent, so I'm passing the suggestion on.

[FNAWSM]

What is your on screen tire pressure showing? Any XX instead of a pressure? Also if it says your driver rear is low for example it could actually be a different tire so check them all. If they all check fine yet your car says low then you must have a sensor gone bad. Even with a bad sensor the little light should only come on after about 15 mins of highway driving. You can catch the new sensors on sale sometimes on infinitiparts.com for around $50 and another $50ish for install. Don't let the dealership rip you off.

[cruzad3r]

Try yanking the fuse?

Before you do that though, read the on screen display to see which tire is having issue then rotate that tire front <> back to see what happen. Also fill your tire to about 36psi, drive around constant speed for a good 30 miles or so and see if that helps.

[M35Sport07]

Well I have had this problem before on my front right tire and it disappeared in about a week so I'll wait it out.but this time it is on the rear left tire so I am not sure what the issue is. This crap started after I got my tires done at americas tire company ugh. Should I go to the dealer yet??

[FNAWSM]

Well you left out the detail about having just got your tires done. Thats most likely your problem. It is common that after getting tires replaced/rotated that your TPMS wont read right away. You can search this issue on the forum and find tons of info about it but if I remember correctly it takes a 15+ minute drive at highway speeds to allow the sensor to reset and work properly. I would do like you did last time and let it go for a week or so and see if it has reset.

[EniGmA1987]

From my experiences with that company, its likely they purposely broke them to get you to order new ones since you probably opted out of their additional cost of "rebuilding" the TPMS when they were doing your tires. Either that or you did pay their extra fees for nothing and the tech's probably broke your sensors.

[The00Dustin]

Well you left out the detail about having just got your tires done.

I agree this shouldn't have been left out, however, I have never had the light come on after such work, so I lean this way:

the techs probably broke your sensor(s)

[M35Sport07]

Problem is still persisting, not sure if it is time to take it to the dealer now. Have any of you guys taken it somewhere else besides the dealer? Is it a good choice?

[ctsedan]

Take it to dealer or check local tire stores, sometimes they have TPMS reset computer and will do it for you at no charge. I have been lucky at the dealer also, they will not charge you most the times. If you need another tpms sensor hit me up, i have few extra ones.