If the tire pressure sensors on Your 2012 Mazda3 are working as intended, You should be able to fill the tires to their recommended pressure (35 pounds per square inch for moSTStandard load variants), drive for at least 20 minutes at 40 miles per hour or greater, and the tire pressure monitoring system should "reset" itself. This is useful in the case of a low tire pressure light or similar. If You have a tire pressure sensor that has failed and been replaced, the "reset" procedure is actually more of a pairing procedure. In order to complete this, You'll need sophisticated equipment that the average driver doesn't have access to. Instead, it's much more economical to take it to a tire shop, where You'll need to pay a nominal fee for the reset.
Rita D
July 16, 2020
To reset the tire pressure monitor or tpms system in your 2012 mazda 3 turn the ignition key to the "on" position and depress the tpms button, usually located under the dash, until the tpms light blinks several times. Start your vehicle and let it run for at least 20 minutes and your tpms system should be reset.
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