I am just very frustrated with my 2010 Mazda3. I liked the added safety of sensors that could tell me if my tires were low on air or let air out if they happen to get overinflated. Unfortunately the valve stems and other components that came from the factory perform terribly. Is there an easy fix for this? The light on my dash is annoying and inspection is coming up, I don’t want a big expensive repair at 42,000 miles old.
Hello, the tire pressure monitoring system (TPMS) is an important system. It has helped reduce blowouts due to low tire pressure. The battery life of a tire pressure sensor is estimated to be five years. The battery life is reduced if you have tires replaced, or a blowout. The tire pressure sensor battery in each wheel can be checked with a scanner connected to the OBD port or a tire pressure monitor tool that can read data independently at each sensor. If you have to keep correcting tire pressure due to leaks you should have the tires, rims and valve stems checked for leaks. If the valve stems are leaking you might be covered under Mazda warranty technical service bulletin TSB 02-001/12 which covers the valve stems if they have neck breakage, hairline cracks, or the valve nuts have breakage. Mazda only recommends plastic caps. If the cap is made of metal or has a metal insert that will void the warranty due to galvanic corrosion causing more force needed to remove and install the cap causing strain on the valve stem.
How to Identify and Fix Common car Problems ?
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The TPMS light may be illuminating due to a faulted sensor giving a false reading, and unfortunately, these are difficult to track down without replacing all of the sensors at the same time (which can be pricey).
The problem could be a damaged or shorted antenna near the wheel, or a wiring fault between the antenna and the module. If you suspect the TPMS module is not receiving a good signal from one or more sensors, check the antenna wiring for continuity and problems such as shorts, opens or high resistance.
The most common reasons a Mazda 3 tire pressure warning light stays on are a leaking tire, a wheel that no longer holds air, or a faulty tire pressure monitoring system.
Low battery power and age-related wear and tear can cause the TPMS sensor to malfunction and cause the low tire pressure light but tires are a fine issue.
When your tire pressure monitoring system (TPMS) warning light comes on, flashes repeatedly, and then turns off, this indicates a malfunction with the vehicle`s TPMS system. If the TPMS comes on and stays on, it means your tire has a dangerously low level of air pressure.
Any time you inflate, change, or rotate one or more of the tires, you need to recalibrate the system. The calibration process requires approximately 30 minutes of cumulative driving at speeds between 30–65 mph (48–105 km/h).
If your TPMS light remains on after inflating the tires to the proper pressure, try these steps: Drive the car at 50 mph for about 10 minutes. This should reset the tire sensors, and the next time you start the car the TPMS light should be off.
The first step is to use a tire pressure gauge to get a second reading to ensure that the air pressure in the tire is correct. If the tire pressure warning light on your dashboard remains on after a long while, it`s an indication that one or more of the tires is leaking air.
Unexpected weather changes will often see this situation in the sensor. Specifically, the sudden change in temperature from the desirable area to the cold area causes the sensor cannot adapt in time. It is the reason the widget sounds an alarm even though the condition in the tire is stable.
With the vehicle off, turn the key to the “on” position, but don`t start the car. Hold the TPMS reset button until the tire pressure light blinks three times, then release it. Start the car and wait 20 minutes for the sensor to refresh.
The batteries inside these sensors will last for about 10 years. Direct TPMS systems reset automatically after tire inflation or rotation. You do need to have these sensors resynchronized when you get new tires, which requires a special tool.
TPMS sensors are designed to last for many years – 5-10 years is a likely lifespan. Given their cost, most drivers will be inclined to replace TPMS sensors on an “as needed” basis – in other words, only once their batteries have expired, or other TPMS components have failed.
When the TPMS warning light comes ON and stays ON, this indicates a low tire pressure condition in one or more tires. Inflating the tire to the recommended tire pressure found on the door placard should cause the light to turn OFF.
Turn on the vehicle and honk the horn for roughly three seconds. This will discharge any residual power still stored in your car and should also reset the TPMS sensor light system when you re-engage the vehicle battery.
Snap-in TPMS sensors that have a rubber stem are as easy to replace as any conventional valve stem. No special tools are needed. But hex nut stems do have to be carefully tightened to specific value with an accurate inch-pound torque wrench or TPMS valve stem tool.
For any motorists that swap their tires out for changing seasons, it`s crucial that the TPMS sensors are reactivated and recalibrated each time. If this is not done, the vehicle`s TPMS will not perform properly and may cause the TPMS light to turn on.
Is It Possible to Turn Off Your TPMS Light Off Permanently? One of the solutions to “turn off” the TPMS light is to cover it with black tape. It is a crude method but preferred by many as it does not require tinkering with the vehicle`s wires or ECU.
Keep in mind, your TPMS does not replace routine tire pressure maintenance. It`s a tool that can help alert you when pressure is low, but a tire may drop below proper inflation long before the TPMS warning light comes on. The TPMS light comes on when the tire pressure gets too low or too high.
The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists.
MAZDA3 Tire Pressure: 36 psi.
Press and hold the TPMS Reset button on the left side of the dashboard below the steering wheel until the TPMS light flashes three times. Release the button. Start the car, then wait for about 20 seconds to see if the TPMS light goes off.
You don`t need to replace your TPMS sensors when buying new tires, but it`s often convenient to do so if the sensors are more than a few years old. Most TPMS sensor batteries last five to ten years, so older sensors may not last as long as your new tires.
Such systems are usually accurate to within 1 psi. Current direct systems use a gauge mounted to the wheel or tire valve. This gauge sends a signal to the car`s computer. How the data is interpreted and displayed in the car with a direct TPMS depends on whether it is a low-line or high-line unit.