Question about 2005 Scion tC

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Tire pressure light comes on

2005 Scion TC, tire pressure light comes on. Light was reset, and comes back on after a short distance of driving. Pressures are all set to what the tire sidewall says. Car was shut off, when light was reset.

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You shouldn't be setting the tire pressure to the max inflation pressure listed on the sidewall, that will likely result in uneven tire wear with the center of the tire wearing out prematurely. You should set the pressures according to the listings in the door jam. Most likely 32-34psi. Also, have you checked the spare tire? Some systems monitor and will illuminate the TPMS light if the spare tire pressure isn't within an acceptable range. The spare is often overlooked when checking tire pressures because of a TPMS indicator.

Posted on May 11, 2010

  • grndad1958 Nov 24, 2010

    Pressure in all tires were set to what is listed on the door jam. The light still continues to come on. I checked into possible sensor replacement in all the tires, all sites start with the year 2006, not 2005.


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Hope this helps and good luck! Thanks for using FixYa!

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2005 Scion Tc - Tire Pressure

it should be what the door says... but make sure the door is showing the size of tires that are on the vehicle... tire pressures are usually determined by an engineer for that vehicle and tire size
Also what does the sideway of the tire say ?


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I took my car to the dealer and they solved it for me, I am not sure what exactly they did, but I know it involved me changing some tires.

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