Posted by Pk on February 16, 2018

This morning got in my car to go to work and the pressure light came on. Checked the gauge and it says one has 22 PSI and all the others are 32-34. Yesterday it was fine because I looked at it and they all said 32-34. Going out of town today and am worried about that tire. What could cause it to go down like that last night after I got home?

Answers / Replies
  • Posted by Serge on February 16, 2018

    I would say most likely your tire is punctured and leaking air. But sometimes it can lose air naturally. I had same thing happen to me - one morning, tire pressure warning light went on, i checked all tires and one was around 22 psi instead of 32 psi. Since this was a newly purchased vehicle, I do not know how long ago tire pressure was checked. I inflated the tire, and so far so good, all pressure levels are fine. Tire pressure monitoring system will warn you when pressure is way low, so if you have not checked your tire inflation for a long time, that tire might have deflated naturally as tires lose 1-2 psi of air pressure monthly. It can also lose pressure if temperatures dropped. Inflate your tire to recommended level and check pressure the next day. If it lost the same amount of psi, it is probably punctured, so you will need to fix or replace that tire.

  • Posted by Mike Verfaillie on October 18, 2018

    Tire pressure light came on this morning while driving just a short distance. Came back home and checked all 4 tires (235 65/17) and each had 35-36 psi. Let car sit for about 30 minutes and then started it up again, with same results. What could be causing this issue? Have been using the car all week, with no problems.

  • Posted by Serge on October 18, 2018

    Might be on of two things - some tire is low on air pressure, or your tire pressure sensors are not working properly. Did you check tire pressure in all four tires? If all tires are properly inflated, then try resetting the TPMS, they check if low pressure light is off. If resetting it doesnt fix the problem, then some sensor might be damaged and needs to be replaced.

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