Low Tire Pressure Light but Tires are Fine: What’s Happening to My Vehicle?

If there is a lack of sensors, safety is not guaranteed. There are no spare parts that operate sustainably for a lifetime. During use, there will be cases of errors and damage. So, what causes the sensor to fail? You see low tire pressure light but tires are fine, what’s happening to your vehicle? If it falls into your car, how to fix it? Let's see our sharing right in the article below.

Low Tire Pressure Light but Tires are Fine: What’s Happening to My Vehicle?

1. Loss of sign in car tire pressure sensor

The sensor will inform changes in tire temperature and pressure through the indicator light. When the light part is damaged, or the sensor is disabled, the pressure increases and decreases. So, it is difficult for the driver to notice.

In the case of the tire temperature changes, the display shows no parameter change at the same time. Otherwise, the tire is still operating with a stable pressure. but we hear the warning sound again. These problems occur, showing that the sensor is having problems such as losing the signal. Sensors suffering from this condition may be due to long operating times, deterioration, or failure.

2. The sensor does not receive information or runs out of battery

When the car is operating normally, suddenly the display stops working, and the parameters disappear. A malfunction in the display screen may cause this symptom or the battery is out. This fault condition is subjective, prolonging the time will easily damage other parts of the vehicle. The safety of drivers and road users will be significantly reduced.

3. The alarm sensor does not match the vehicle's condition

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.

What to do when the tire pressure sensor shows an error?

Low Tire Pressure Light but Tires are Fine

When the tire pressure sensor shows an error, the first thing you should try is to turn off the car and start it again. It helps to reset the central processing unit and the monitor. You cannot restart the sensor valve either. Sometimes, the problem is because the signal processing unit is weak.

If the central processor of the tire pressure sensor does not use the vehicle's power supply. Here, you must remove the battery or unplug its power supply. However, our technology has encountered no such cases. Only the battery-operated sensor and solar charging plate do not use the car's electricity. But its central transceiver still uses battery power as usual.

If restarting the central processor and the screen both do not affect, you can remove the battery of the sensor valve (in the tires). But it would be overkill. Removing them is laborious, including tire access. Remove the battery for each valve. Then re-insert and test over and over. Removing the battery of the valve is difficult, except in case of battery runs out (valve no longer signaled). Even if the battery is removed to restart the valve, after reinstalling, the error will continue.

Therefore, the plan to remove the battery of the TPMS valves can be forgettable. Think about replacing it with a new, genuine, and better quality tire pressure sensor.

Discover ways to fix it when the Car Tire Pressure Sensor is faulty

Currently, the role of sensors with cars is necessary. When equipped with this accessory, the tire pressure temperature in the vehicle is always closely monitored, accurately signaling to the driver.

And if the sensor has a problem, it will affect the operation and safety of the vehicle. Therefore, the driver should check the vehicle to overcome the critical situations that the car encounters.

1. Restart the car tire pressure sensor

We intend this step to restore the original factory settings of the TPMS. When checked, no high or low variation in the pressure-temperature in the tire was detected. It is time to check the sensor system for sure. This test is done by resetting the system. Depending on the type of car tire pressure sensor, the reset button will appear in its original positions. Usually, the position under the steering wheel will be for the reset button.

Users should avoid confusion between restarting the sensor and adjusting the pressure in the tire. They designed the sensor structure to be standard and sophisticated. So, the recalibration only changes the external position. It does not interfere deeply with the accessory structure.

To restart the sensor, first I need to check the key, turn on the electrical system. After about three seconds, press the reset button. Then the sensor display light is on and flashes. Move the car for about 25 - 30 minutes, then the sensor system starts to measure the pressure again.

2. Driving a car for short distances

No need to travel too far. With a short distance, it is enough to check the car tire pressure sensor. Drive with a range of 15 kilometer at a speed of 80 km/h, then stop and turn off the engine. Next, restart to check if the sensor works correctly or not.

3. Adjust temperature and pressure according to weather

For tropical countries, the temperature needs to be lowered to about 21 degrees Celsius, 29 psi. Change as above will fit properly with tire pressure when exposed to a high-temperature environment.

In contrast, in cold regions, temperatures above 20 degrees Celsius need to be reduced to about 10 degrees Celsius, 2psi. Therefore, when driving in a 10 degree Celsius environment, the tire needs to be inflated at a higher rate than 2psi in a 21 degree Celsius condition. But in a 10 degree Celsius environment, the pressure pumped into the tire needs to be the same as the pressure.

4. Replace tire pressure sensor

Long-term operation and deterioration of spare parts often cause errors with sensors. The repair of such damage is only temporary, uncertain in the long term. Because of that, replacing the sensor is expensive but safe and durable for the car.

Final Recommendations

The sensor with the car is not only a supporting device. It also carries a high protective value. Operating a quality car, it comes with full spare parts, but without understanding. So, it is difficult to operate a durable vehicle. With information about common errors and suggestions to fix the most standard car tire pressure sensor above, we hope the article will be useful and give you the most thorough answer about the sensor.

In the market, it is easy to find sensors. But finding good, genuine spare parts is difficult. If the price attracts you but you forget to understand the core of the product, it is dangerous. It affects the operation of the vehicle, the safety of the driver, and the cost of replacement.

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