Q: Check Tire Pressure Light

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My Check Tire Pressure Light is coming on and off. It said the Left Rear tire pressure was at zero however none of my tires are flat. I put air in the tires just to be safe however the light is going on an off. I am worried that it can be something more serious.

My car has 78000 miles.
My car has an automatic transmission.

Hello. The first thing I would do is make sure that the tire in question is inflated to proper pressure. If the pressure is low, even by a few pounds, it may set off the tire pressure light. If the tire is properly inflated, then it may be possible that the TPMS sensor in the tire is defective. A defective TPMS sensor will usually require a trip to the shop, as the sensor is installed in the wheel, and requires removal of the tire to access.

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