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I drive a 2010 Mazda 3. My tire pressure light is on, I have had my 5000mile service done they checked the tires for leaks nothing! When I pulled away it did go off, but that day I was driving to San Diego from Phoenix and sure enough half way there it came back on. This was about a month ago an it's still on. I don't understand what the deal is? Any ideas? Thanks!

Answers from the Automotive Experts

Colleen McGee, Driving Instructor at Americas Driving School It sounds like something may be wrong with the sensor for the tire pressure light. If you have checked the tire pressure, and the tires are at the CAR MANUFACTURERS suggested tire pressure (usually found on drivers door panel), you have no need to worry about over inflated or under inflated tires. If the tires are inflated to the TIRE manufacturers suggested pressure, it is likely higher than what it should be for your car. Otherwise check to see if there is an electrical problem with the sensor for the tire pressure light. Hope this helps! Colleen

Amanda J Valle, Dealer, Certified Mechanic at AMSOIL Emily, Your tires have an internal sensor inside your valve stem components that send a signal to the main computer. Your tire pressure gauge comes on within just a few pounds off. If you have a full size spare ,that too, has a tire pressure sensor gauge. You may need to just air the spare up a few pounds to have the light go off.

Lori Johnson, Owner and Instructor at Ladies Start Your Engines Dear Emily, It's possible the sensor for that wheel is bad. Have a technician test it. Lori Johnson

Pat Fleischmann , Director of First Impressions at Community Tire Pros & Auto Repair It’s hard to say without first hand and looking at the issue... First thing to check is what the pressures are set at~ At this time, we also check the spare tire. On some vehicles the spare tire has a sensor as well, and it may not have been checked. There is a possibility of an issue within the tire pressure monitor system, such as a sensor failure. However, it’s usually a pressure setting issue. Good luck and please get it looked at, could be a simple issue. The holidays are too busy to be stuck on the side of the road...

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