So recently, my tire pressure light blinks and then stays solid.

I put some air into the tire and try to reset it on my own but it doesn’t go away.

I used my obd2 scanner and there were no codes to read, so that’s good.

I looked up, it could be a sensor problem? I’d rather get a second opinion from the Toyota community.

I’ve already made an appointment with the dealership for next Monday. Is my car safe to drive?

Edit: 2015 Toyota Corolla.

  • SileAnimus@alien.topBEnglish
    1·
    1 year ago

    Always steady light means that either a tire pressure is low (75% of the correct pressure) or that the threshold was set incorrectly (someone reset the TPMS system while tires were not inflated properly).

    Blinking light indicates a TPMS system failure, 99% of the time this means that a sensor has failed. The valve stems of the wheels actually have a sensor built into them that are inside of the tire, when the batteries die out (they last around 5-10 years), they cause the car to flash that light to tell you that the system is inoperative. It’s a good idea to replace all four at the same time (even better to do it when replacing all the tires because it saves $ on labor), but it’s not necessary depending on the battery life (any decent shop with the proper TPMS tool can tell if the battery on the other sensors are low, depending on how old the car is because some of them just don’t say).

    Source: Am a tech at a dealership.