Ford Focus Forum, Ford Focus ST Forum - View Single Post - Low Tire Prssure warning.....now what?
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Old 01-25-2013, 05:40 PM  
Kabigon
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Quote:
Originally Posted by JesseE1981 View Post
The title may seem self-explanatory, but let me explain further. It's been rather cold here in Michigan, so the PSI in my tires had dropped to 27-28. The recommended PSI on the side of the door says 35, so I added air to each tire to get it back to 35. Well, the low tire pressure warning still comes on when I start the car, the the light stays illuminated. There doesn't appear to be any sort of leaks....any ideas? Has anyone else encountered this? Doesn't seem like something I should have to reset, or do I?
Did you drive the car after adding air?

The pressure sensors "go to sleep" when the car isn't moving (when the tires are not rotating) to prolong their battery life.
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