Reset Mazda Tire Pressure Sensor TPMS Light

In this article, you will learn how to reset the Tire Pressure Monitoring System (TPMS). If one or more tires have low air pressure on your Mazda, the TPMS light indicator will come on and stay illuminated until the issue has been resolved. You have to adjust the tire pressure to the specified pressure, and if the air pressure still decreases and you suspect that there is a puncture, it’s best to send it to a tire shop to fix the problem.

Procedure

1. Inflate all the tires to the recommended tire pressure. Use the pressure on the label, not the maximum printed on the tire; most Mazdas call for somewhere in the low to mid 30s PSI. Check the pressures when the tires are cold for an accurate reading. The specification label is located on the driver’s door jamb or the fuel tank door for all Mazda cars.

   

For accurate tire pressure readings, we recommend the use of a digital tire pressure gauge.

2. Turn on the ignition. If you have a keyless start Mazda, press the Start/Stop button, but don’t apply the brake pedal. All the instrument cluster lights, including the TPMS warning light (tire with exclamation symbol), will turn on.

3. Press the TPMS switch on the left side of the dash next to the steering wheel. Hold the TPMS switch pressed until you see the TPMS flash twice.

4. You will hear a beep soon after the TPMS light flashes. This confirms that the TPMS light on your Mazda has been reset.

TPMS stays on, but tire pressure is correct

In some cases, the TPMS warning light may come and stay on even though the tires don’t need more air, meaning they are all inflated to the pressure on the label. The most common problems that can trigger the low tire pressure warning light are:

• A defective TPMS sensor could cause the TPMS light to turn on a Mazda.
• You are using a spare tire.
• The TMPS sensor’s battery ran out.

If you are encountering any of the instances above, the TPMS tire pressure light will stay on even if you add air to your tires. Check the size of the tires. Make sure they all have a TPMS sensor installed.

If the tires are inflated correctly and fitted with a sensor, the most common cause is a defective TPMS sensor or a failure with the TPMS system, which is an unusual problem.

TPMS light flashing

A weak battery for your TPMS sensor will result in tire warning light indicator to flash, or the TPMS light won’t go off.

Using a TPMS diagnostic scanner to troubleshoot your Mazda’s tire pressure monitor system, you can easily diagnose, retrieve the error codes, and identify and locate which tire has the faulty TPMS sensor. This will allow you to troubleshoot the TPMS light yourself.

The YOUCANIC UCAN-II Pro can read and clear codes on any vehicle’s Tire Pressure Management System, including Mazda. It can also diagnose all control modules on supported vehicles.

Set the pressures cold, then reset

Tire pressure rises by roughly three to four psi once the tires have warmed up on a drive, so setting them at a gas station after a highway run leaves them under inflated when cold. Check and set them first thing in the morning or after the car has stood for a few hours, against the figure on the sticker in the driver door opening rather than the number molded into the tire sidewall, which is the maximum the tire can hold rather than the pressure the car wants.

Do not forget the spare

Mazdas fitted with a full size spare that carries its own sensor will keep the warning light on if the spare is low, and there is nothing wrong with any of the four wheels on the ground. It is an easy thing to spend an afternoon chasing. If the light refuses to clear after a correct reset and all four tires read right, check the spare before anything else.

Sensor batteries last about seven to ten years

TPMS sensors are sealed units with a non replaceable battery, so on a car past seven years they begin to fail one at a time. The usual pattern is a light that flashes for a minute on start up and then stays on steady, which means the system has lost contact with a sensor rather than seen a low tire. New sensors need to be registered to the car, which is why a reset alone will not clear this one.

After new tires or a wheel swap

If the light appeared immediately after tire fitting, a sensor was probably damaged by the machine or the valve was not reseated properly. Go back to the fitter rather than buying parts. If you have swapped to winter wheels, those wheels need their own sensors registered to the car unless the system is one of the indirect types that works from wheel speed, in which case a simple reset is all it needs.

Frequently Asked Questions

How do I reset the TPMS light on a Mazda?

Set every tire to the pressure on the door jamb label. On indirect systems, press and hold the TPMS set button or use the menu, then drive for a while.

Why does my Mazda TPMS light stay on after inflating the tires?

The system may need to be reset or need more driving to relearn. If it flashes, there may be a sensor or system fault.

Does a Mazda TPMS light come on in cold weather?

Yes. Tire pressure drops as temperatures fall, which can trigger the light. Check and adjust the pressures when the tires are cold.

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