my tire pressure light came on, tire pressure is good

Discussion in 'Prius c Main Forum' started by priustexasbob, May 1, 2019.

  1. priustexasbob

    priustexasbob Member

    Joined:
    Sep 3, 2010
    346
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    Location:
    arrakis
    Vehicle:
    2015 Prius c
    Model:
    Two
    I have 37 PSI cold, I drove to Austin and back, about 200 mile round trip, air temp was 85 and sunny. My tire pressure light came on, I pulled over and looked at tires they were fine, checked pressure all were 40PSI. it stayed on for rest of trip, about 40 minutes. I got home, turned off car, came back out 20 minutes later and went to store light did not come on. I has not come on again. Any ideas?
     
  2. Mendel Leisk

    Mendel Leisk Obtuse Angler

    Joined:
    Oct 17, 2010
    34,577
    23,540
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    I've had that happen, with our 2010. I pulled into a gas station, checked pressures, they were all around 35~36, the usual pressure. For the heck of it I bumped them all close to 40. The light went out after a few minutes driving. The next day I took them back down to 35~36, and the light stayed off.

    Short version: gremlins.
     
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